feat: move display transform into frame out

Amp-Thread-ID: https://ampcode.com/threads/T-019f9d91-77c1-7206-a60f-ed6554ce92ab

Co-authored-by: Heaust Azure <heaust.azure@gmail.com>

renderer/src/render_graph/compiler.rs

@@ -38,8 +38,15 @@ struct PipelineParameters {
 }
 #[derive(Deserialize)]
 #[serde(deny_unknown_fields)]
-struct ToneMapParameters {
+#[serde(rename_all = "camelCase")]
-    exposure: f32,
+struct FrameOutParameters {
+    hdr_enabled: bool,
+    tone_mapper: ToneMapper,
+    exposure_stops: f32,
+    output_transfer: OutputTransfer,
+    scale_mode: ScaleMode,
+    filter: FrameFilter,
+    background_color: [f32; 4],
 }
 #[derive(Deserialize)]
 #[serde(deny_unknown_fields, rename_all = "camelCase")]
@@ -424,13 +431,6 @@ fn decode(node: &Node, i: usize) -> Result<NormalizedParameters, GraphError> {
             NormalizedParameters::FrustumCull { camera: p.camera }
         }
         "fullscreen_copy" => empty!(NormalizedParameters::FullscreenCopy),
-        "tone_map" => {
-            let p: ToneMapParameters =
-                serde_json::from_value(node.parameters.clone()).map_err(invalid)?;
-            NormalizedParameters::ToneMap {
-                exposure: range(p.exposure, 0.0, 32.0, format!("{base}.exposure"))?,
-            }
-        }
         "color_balance" => {
             let p: ColorBalanceParameters =
                 serde_json::from_value(node.parameters.clone()).map_err(invalid)?;
@@ -528,7 +528,36 @@ fn decode(node: &Node, i: usize) -> Result<NormalizedParameters, GraphError> {
                 strength: range(p.strength, 0.0, 16.0, format!("{base}.strength"))?,
             }
         }
-        "frame_out" => empty!(NormalizedParameters::FrameOut),
+        "frame_out" => {
+            let p: FrameOutParameters =
+                serde_json::from_value(node.parameters.clone()).map_err(invalid)?;
+            let exposure_stops = range(
+                p.exposure_stops,
+                -10.0,
+                10.0,
+                format!("{base}.exposureStops"),
+            )?;
+            let background_color = components(
+                p.background_color,
+                0.0,
+                1.0,
+                &format!("{base}.backgroundColor"),
+            )?;
+            NormalizedParameters::FrameOut {
+                dynamic_range: if p.hdr_enabled {
+                    FrameDynamicRange::Hdr {
+                        tone_mapper: p.tone_mapper,
+                        exposure_stops,
+                    }
+                } else {
+                    FrameDynamicRange::Sdr
+                },
+                output_transfer: p.output_transfer,
+                scale_mode: p.scale_mode,
+                filter: p.filter,
+                background_color,
+            }
+        }
         "texture" => {
             let p: TextureParameters =
                 serde_json::from_value(node.parameters.clone()).map_err(invalid)?;
@@ -1378,12 +1407,6 @@ pub fn compile(graph: Graph) -> Result<CompiledGraph, GraphError> {
                             && descriptor.extent == source_descriptor.extent
                     })
             }
-            Some(FullscreenPolicy::ToneMap) => target_descriptor.is_some_and(|descriptor| {
-                descriptor.format != TextureFormat::Depth32Float
-                    && descriptor.format != TextureFormat::R32Float
-                    && is_single_view_d2(descriptor)
-                    && descriptor.extent == source_descriptor.extent
-            }),
             Some(FullscreenPolicy::BloomExtract) => authored_target_ok,
             Some(FullscreenPolicy::HdrSameExtent) => authored_target_ok && target_matches_source,
             Some(FullscreenPolicy::BloomComposite) => {
@@ -1418,10 +1441,19 @@ pub fn compile(graph: Graph) -> Result<CompiledGraph, GraphError> {
         };
         let TextureFamilySource::AuthoredTexture { descriptor, .. } =
             &families[family as usize].source;
-        if !is_filterable_frame_color(descriptor) {
+        let NormalizedParameters::FrameOut { dynamic_range, .. } = &params[i] else {
+            unreachable!()
+        };
+        if !frame_out_source_compatible(descriptor, dynamic_range) {
+            let message = match dynamic_range {
+                FrameDynamicRange::Hdr { .. } => "HDR frame output requires rgba16_float",
+                FrameDynamicRange::Sdr => {
+                    "SDR frame output requires a linear filterable color texture"
+                }
+            };
             return Err(error(
                 "GRAPH_ILLEGAL_ACCESS",
-                "frame output requires a filterable single-view d2 color texture",
+                message,
                 format!("nodes[{i}].inputs.color"),
             ));
         }
@@ -1903,17 +1935,20 @@ pub(super) fn is_single_view_d2(descriptor: &NormalizedTextureDescriptor) -> boo
         && descriptor.sample_count == 1
         && descriptor.mip_level_count == 1
         && extent_layers(&descriptor.extent) == 1
+        && descriptor.view_formats.is_empty()
 }
-pub(super) fn is_filterable_frame_color(descriptor: &NormalizedTextureDescriptor) -> bool {
+pub(super) fn frame_out_source_compatible(
+    descriptor: &NormalizedTextureDescriptor,
+    dynamic_range: &FrameDynamicRange,
+) -> bool {
     is_single_view_d2(descriptor)
-        && matches!(
+        && match dynamic_range {
+            FrameDynamicRange::Hdr { .. } => descriptor.format == TextureFormat::Rgba16Float,
+            FrameDynamicRange::Sdr => matches!(
                 descriptor.format,
-            TextureFormat::Rgba8Unorm
+                TextureFormat::Rgba8Unorm | TextureFormat::Bgra8Unorm | TextureFormat::Rgba16Float
-                | TextureFormat::Rgba8UnormSrgb
+            ),
-                | TextureFormat::Bgra8Unorm
+        }
-                | TextureFormat::Bgra8UnormSrgb
-                | TextureFormat::Rgba16Float
-        )
 }
 pub(super) fn texture_usage(
     f: &TextureFamily,

renderer/src/render_graph/contracts.rs

@@ -25,7 +25,6 @@ pub enum ExecutionClass {
 #[derive(Clone, Copy, Debug, PartialEq, Eq)]
 pub enum FullscreenPolicy {
     Copy,
-    ToneMap,
     HdrSameExtent,
     BloomExtract,
     BloomComposite,
@@ -335,15 +334,6 @@ pub static CONTRACTS: &[Contract] = &[
         inherently_observable: false,
         fullscreen_policy: Some(FullscreenPolicy::Copy),
     },
-    Contract {
-        key: "tone_map",
-        version: 1,
-        execution: ExecutionClass::Render,
-        inputs: FULLSCREEN_COPY_IN,
-        outputs: FULLSCREEN_COPY_OUT,
-        inherently_observable: false,
-        fullscreen_policy: Some(FullscreenPolicy::ToneMap),
-    },
     Contract {
         key: "color_balance",
         version: 1,
@@ -418,7 +408,7 @@ pub static CONTRACTS: &[Contract] = &[
     },
     Contract {
         key: "frame_out",
-        version: 1,
+        version: 2,
         execution: ExecutionClass::Frame,
         inputs: FRAME_OUT_IN,
         outputs: NONE_OUT,

renderer/src/render_graph/plan.rs

@@ -209,9 +209,6 @@ pub enum NormalizedParameters {
         clear_color: [f64; 4],
     },
     FullscreenCopy,
-    ToneMap {
-        exposure: f32,
-    },
     ColorBalance {
         mode: ColorBalanceMode,
         factor: f32,
@@ -258,7 +255,50 @@ pub enum NormalizedParameters {
     LuminanceEdge {
         strength: f32,
     },
-    FrameOut,
+    FrameOut {
+        dynamic_range: FrameDynamicRange,
+        output_transfer: OutputTransfer,
+        scale_mode: ScaleMode,
+        filter: FrameFilter,
+        background_color: [f32; 4],
+    },
+}
+
+#[derive(Clone, Copy, Debug, PartialEq, Serialize, serde::Deserialize)]
+#[serde(tag = "kind", rename_all = "snake_case")]
+pub enum FrameDynamicRange {
+    Sdr,
+    Hdr {
+        tone_mapper: ToneMapper,
+        exposure_stops: f32,
+    },
+}
+
+#[derive(Clone, Copy, Debug, PartialEq, Eq, Serialize, serde::Deserialize)]
+#[serde(rename_all = "snake_case")]
+pub enum ToneMapper {
+    Aces,
+    Reinhard,
+    None,
+}
+#[derive(Clone, Copy, Debug, PartialEq, Eq, Serialize, serde::Deserialize)]
+#[serde(rename_all = "snake_case")]
+pub enum OutputTransfer {
+    Srgb,
+    Linear,
+}
+#[derive(Clone, Copy, Debug, PartialEq, Eq, Serialize, serde::Deserialize)]
+#[serde(rename_all = "snake_case")]
+pub enum ScaleMode {
+    Stretch,
+    Contain,
+    Cover,
+}
+#[derive(Clone, Copy, Debug, PartialEq, Eq, Serialize, serde::Deserialize)]
+#[serde(rename_all = "snake_case")]
+pub enum FrameFilter {
+    Linear,
+    Nearest,
 }
 
 #[derive(Clone, Copy, Debug, PartialEq, Eq, Serialize, serde::Deserialize)]

renderer/src/render_graph/runtime.rs

@@ -330,9 +330,6 @@ fn validate_fullscreen_execution(
     let vector = |v: &[f32], min, max| v.iter().all(|x| scalar(x, min, max));
     let valid_parameters = match (key, &execution.parameters) {
         ("fullscreen_copy", NormalizedParameters::FullscreenCopy) => true,
-        ("tone_map", NormalizedParameters::ToneMap { exposure }) => {
-            exposure.is_finite() && (0.0..=32.0).contains(exposure)
-        }
         (
             "color_balance",
             NormalizedParameters::ColorBalance {
@@ -566,14 +563,6 @@ fn validate_fullscreen_execution(
                     && target_d.format != TextureFormat::Depth32Float
                     && target_d.extent == source.extent
             }
-            FullscreenPolicy::ToneMap => {
-                single_view_d2(target_d)
-                    && !matches!(
-                        target_d.format,
-                        TextureFormat::Depth32Float | TextureFormat::R32Float
-                    )
-                    && target_d.extent == source.extent
-            }
             FullscreenPolicy::BloomExtract => hdr(target_d),
             FullscreenPolicy::HdrSameExtent => hdr(target_d) && target_d.extent == source.extent,
             FullscreenPolicy::BloomComposite => {
@@ -1477,11 +1466,40 @@ pub fn prepare_runtime_plan(
     }
 
     let frame_out = &graph.executions[frame_out_index];
-    if !matches!(frame_out.parameters, NormalizedParameters::FrameOut) {
+    let NormalizedParameters::FrameOut {
+        dynamic_range,
+        output_transfer,
+        scale_mode: _,
+        filter: _,
+        background_color,
+    } = &frame_out.parameters
+    else {
         return Err(invalid(
             "frame_out parameters mismatch",
             format!("executions[{frame_out_index}].parameters"),
         ));
+    };
+    let parameters_valid = background_color
+        .iter()
+        .all(|v| v.is_finite() && (0.0..=1.0).contains(v))
+        && match dynamic_range {
+            FrameDynamicRange::Sdr => true,
+            FrameDynamicRange::Hdr { exposure_stops, .. } => {
+                exposure_stops.is_finite() && (-10.0..=10.0).contains(exposure_stops)
+            }
+        };
+    if !parameters_valid {
+        return Err(invalid(
+            "frame_out parameters are out of range",
+            format!("executions[{frame_out_index}].parameters"),
+        ));
+    }
+    if *output_transfer == OutputTransfer::Linear && surface.format.is_srgb() {
+        return Err(error(
+            "GRAPH_SURFACE_INCOMPATIBLE",
+            "linear output transfer cannot target an sRGB surface",
+            format!("executions[{frame_out_index}].parameters.outputTransfer"),
+        ));
     }
     let ExecutionKind::FrameOut { color } = frame_out.kind else {
         return Err(invalid(
@@ -1546,7 +1564,7 @@ pub fn prepare_runtime_plan(
         )
     })?;
     let TextureFamilySource::AuthoredTexture { descriptor, .. } = &family.source;
-    if !super::compiler::is_filterable_frame_color(descriptor) {
+    if !super::compiler::frame_out_source_compatible(descriptor, dynamic_range) {
         return Err(invalid(
             "frame_out texture descriptor is incompatible",
             format!("textureFamilies[{}].source.descriptor", family.id),

renderer/src/render_graph/tests.rs

@@ -6,8 +6,11 @@ use serde_json::{json, Value};
 fn input(node: &str, socket: &str) -> Value {
     json!({"node":node,"socket":socket})
 }
-fn node(id: &str, key: &str, parameters: Value, inputs: Value) -> Value {
+fn node(id: &str, key: &str, mut parameters: Value, inputs: Value) -> Value {
-    json!({"id":id,"state":"enabled","executor":{"key":key,"version":1},"parameters":parameters,"inputs":inputs})
+    if key == "frame_out" && parameters.as_object().is_some_and(|p| p.is_empty()) {
+        parameters = json!({"hdrEnabled":false,"toneMapper":"aces","exposureStops":0,"outputTransfer":"srgb","scaleMode":"stretch","filter":"linear","backgroundColor":[0,0,0,1]});
+    }
+    json!({"id":id,"state":"enabled","executor":{"key":key,"version":if key == "frame_out" { 2 } else { 1 }},"parameters":parameters,"inputs":inputs})
 }
 fn texture(format: &str, residency: &str) -> Value {
     json!({"texture":{"dimension":"d2","format":format,"extent":{"kind":"surface_relative","width":{"numerator":1,"denominator":1},"height":{"numerator":1,"denominator":1},"depthOrArrayLayers":1},"mipLevelCount":1,"sampleCount":1,"viewFormats":[]},"residency":residency})
@@ -247,7 +250,7 @@ fn fullscreen_copy_parameters_are_exactly_empty() {
     let copy = node_index(&g, "copy");
     g["nodes"][copy]["parameters"] = json!({"obsolete":true});
     assert_eq!(compile_error(g).code, "GRAPH_PARAMETERS_INVALID");
-    assert_eq!(CONTRACTS.len(), 17);
+    assert_eq!(CONTRACTS.len(), 16);
 }
 
 #[test]
@@ -839,7 +842,6 @@ fn exact_phase_four_contract_catalog_and_mesh_metadata() {
             ("pipeline_registry", 1),
             ("pipeline", 1),
             ("fullscreen_copy", 1),
-            ("tone_map", 1),
             ("color_balance", 1),
             ("exposure_contrast", 1),
             ("saturation", 1),
@@ -848,7 +850,7 @@ fn exact_phase_four_contract_catalog_and_mesh_metadata() {
             ("bloom_blur", 1),
             ("bloom_composite", 1),
             ("luminance_edge", 1),
-            ("frame_out", 1),
+            ("frame_out", 2),
         ]
     );
     assert_eq!(
@@ -864,7 +866,6 @@ fn exact_phase_four_contract_catalog_and_mesh_metadata() {
             ("pipeline_registry", None),
             ("pipeline", None),
             ("fullscreen_copy", Some(FullscreenPolicy::Copy)),
-            ("tone_map", Some(FullscreenPolicy::ToneMap)),
             ("color_balance", Some(FullscreenPolicy::HdrSameExtent)),
             ("exposure_contrast", Some(FullscreenPolicy::HdrSameExtent)),
             ("saturation", Some(FullscreenPolicy::HdrSameExtent)),
@@ -2083,6 +2084,41 @@ fn assert_runtime_path(graph: &CompiledGraph, path: impl AsRef<str>) {
     assert_eq!(error.details["path"], path.as_ref());
 }
 
+fn mutate_texture_descriptor(
+    graph: &mut CompiledGraph,
+    resource: u32,
+    mutate: impl FnOnce(&mut NormalizedTextureDescriptor),
+) {
+    let (family, allocation) = match graph.resources[resource as usize].plan {
+        ResourcePlan::Texture {
+            family, allocation, ..
+        } => (family as usize, allocation.unwrap()),
+        _ => unreachable!(),
+    };
+    let TextureFamilySource::AuthoredTexture {
+        resource: source,
+        descriptor,
+        ..
+    } = &mut graph.texture_families[family].source;
+    mutate(descriptor);
+    let descriptor = descriptor.clone();
+    let ResourcePlan::TextureSource {
+        descriptor: source_descriptor,
+        ..
+    } = &mut graph.resources[*source as usize].plan
+    else {
+        unreachable!()
+    };
+    *source_descriptor = descriptor.clone();
+    let key = &mut graph.allocation_classes[allocation.class as usize].key;
+    key.dimension = descriptor.dimension;
+    key.format = descriptor.format;
+    key.extent = descriptor.extent;
+    key.mip_level_count = descriptor.mip_level_count;
+    key.sample_count = descriptor.sample_count;
+    key.view_formats = descriptor.view_formats;
+}
+
 #[test]
 fn runtime_rejects_coordinated_contract_and_texture_target_mutations() {
     let baseline = compile_graph(full_cull_graph());
@@ -2920,15 +2956,6 @@ fn runtime_rejects_coordinated_executor_frustum_and_fullscreen_mutations() {
         .position(|execution| execution.executor.key == "fullscreen_copy")
         .unwrap();
     let mut graph = post.clone();
-    graph.executions[copy].executor.key = "tone_map".into();
-    assert_runtime_path(&graph, format!("executions[{copy}].parameters"));
-    for exposure in [f32::NAN, -0.1, 32.1] {
-        let mut graph = post.clone();
-        graph.executions[copy].executor.key = "tone_map".into();
-        graph.executions[copy].parameters = NormalizedParameters::ToneMap { exposure };
-        assert_runtime_path(&graph, format!("executions[{copy}].parameters"));
-    }
-    let mut graph = post.clone();
     let ExecutionKind::Render {
         color_attachments, ..
     } = &mut graph.executions[copy].kind
@@ -2943,6 +2970,242 @@ fn runtime_rejects_coordinated_executor_frustum_and_fullscreen_mutations() {
     assert_runtime_path(&graph, format!("executions[{copy}].kind"));
 }
 
+fn frame_parameters(hdr: bool) -> Value {
+    json!({"hdrEnabled":hdr,"toneMapper":"reinhard","exposureStops":2,
+        "outputTransfer":"srgb","scaleMode":"contain","filter":"nearest",
+        "backgroundColor":[0.1,0.2,0.3,0.4]})
+}
+
+#[test]
+fn frame_out_v2_has_exact_seven_fields_normalizes_sdr_and_rejects_v1() {
+    let fields = [
+        "hdrEnabled",
+        "toneMapper",
+        "exposureStops",
+        "outputTransfer",
+        "scaleMode",
+        "filter",
+        "backgroundColor",
+    ];
+    for field in fields {
+        let mut g = full_cull_graph();
+        let i = node_index(&g, "frame_out");
+        g["nodes"][i]["parameters"] = frame_parameters(false);
+        g["nodes"][i]["parameters"]
+            .as_object_mut()
+            .unwrap()
+            .remove(field);
+        assert_eq!(
+            compile_error(g).code,
+            "GRAPH_PARAMETERS_INVALID",
+            "missing {field}"
+        );
+    }
+    let mut g = full_cull_graph();
+    let i = node_index(&g, "frame_out");
+    g["nodes"][i]["parameters"] = frame_parameters(false);
+    g["nodes"][i]["parameters"]["extra"] = json!(0);
+    assert_eq!(compile_error(g).code, "GRAPH_PARAMETERS_INVALID");
+    for (field, bad) in [
+        ("toneMapper", json!("bad")),
+        ("exposureStops", json!(11)),
+        ("backgroundColor", json!([0, 0, -0.1, 1])),
+    ] {
+        let mut g = full_cull_graph();
+        let i = node_index(&g, "frame_out");
+        g["nodes"][i]["parameters"] = frame_parameters(false);
+        g["nodes"][i]["parameters"][field] = bad;
+        assert_eq!(
+            compile_error(g).code,
+            "GRAPH_PARAMETERS_INVALID",
+            "hidden {field}"
+        );
+    }
+    let mut g = full_cull_graph();
+    let i = node_index(&g, "frame_out");
+    g["nodes"][i]["parameters"] = frame_parameters(false);
+    assert!(matches!(
+        execution(&compile_graph(g), "frame_out").parameters,
+        NormalizedParameters::FrameOut {
+            dynamic_range: FrameDynamicRange::Sdr,
+            ..
+        }
+    ));
+    let mut g = full_cull_graph();
+    let i = node_index(&g, "frame_out");
+    g["nodes"][i]["executor"]["version"] = json!(1);
+    assert_eq!(compile_error(g).code, "GRAPH_EXECUTOR_VERSION_UNSUPPORTED");
+}
+
+#[test]
+fn frame_out_source_format_matrix_is_exact() {
+    let surface = RuntimeSurfaceContract {
+        format: wgpu::TextureFormat::Bgra8Unorm,
+        width: 1280,
+        height: 720,
+        usage: wgpu::TextureUsages::RENDER_ATTACHMENT,
+        view_formats: vec![],
+    };
+    for (format, sdr, hdr) in [
+        ("rgba8_unorm", true, false),
+        ("bgra8_unorm", true, false),
+        ("rgba16_float", true, true),
+        ("rgba8_unorm_srgb", false, false),
+        ("bgra8_unorm_srgb", false, false),
+        ("r32_float", false, false),
+        ("depth32_float", false, false),
+    ] {
+        for (hdr_enabled, accepted) in [(false, sdr), (true, hdr)] {
+            let mut g = full_cull_graph();
+            let i = node_index(&g, "frame_out");
+            if format == "depth32_float" {
+                g["nodes"][i]["inputs"]["color"] = input("pipeline_main", "depth");
+            } else {
+                g["nodes"][0]["parameters"]["texture"]["format"] = json!(format);
+            }
+            g["nodes"][i]["parameters"] = frame_parameters(hdr_enabled);
+            match compile(serde_json::from_value(g).unwrap()) {
+                Ok(compiled) => {
+                    assert!(
+                        accepted,
+                        "unexpected accept: hdr={hdr_enabled} format={format}"
+                    );
+                    prepare_runtime_plan(&compiled, surface.clone(), None).unwrap();
+                }
+                Err(error) => {
+                    assert!(
+                        !accepted,
+                        "unexpected reject: hdr={hdr_enabled} format={format}"
+                    );
+                    let expected_message = if hdr_enabled {
+                        "HDR frame output requires rgba16_float"
+                    } else {
+                        "SDR frame output requires a linear filterable color texture"
+                    };
+                    assert_eq!(error.code, "GRAPH_ILLEGAL_ACCESS");
+                    assert_eq!(error.details["path"], format!("nodes[{i}].inputs.color"));
+                    assert_eq!(error.message, expected_message);
+                    assert_eq!(error.details["message"], expected_message);
+                }
+            }
+        }
+    }
+}
+
+#[test]
+fn runtime_rejects_every_frame_parameter_lane_and_coordinated_source_mutations() {
+    let baseline = compile_graph(full_cull_graph());
+    let i = baseline
+        .executions
+        .iter()
+        .position(|e| e.executor.key == "frame_out")
+        .unwrap();
+    for version in [1, 3] {
+        let mut g = baseline.clone();
+        g.executions[i].executor.version = version;
+        assert_runtime_path(&g, format!("executions[{i}].executor.version"));
+    }
+    for lane in 0..4 {
+        for value in [f32::NAN, -0.1, 1.1] {
+            let mut g = baseline.clone();
+            let NormalizedParameters::FrameOut {
+                background_color, ..
+            } = &mut g.executions[i].parameters
+            else {
+                unreachable!()
+            };
+            background_color[lane] = value;
+            assert_runtime_path(&g, format!("executions[{i}].parameters"));
+        }
+    }
+    for exposure in [f32::NAN, -10.1, 10.1] {
+        let mut g = baseline.clone();
+        let NormalizedParameters::FrameOut { dynamic_range, .. } = &mut g.executions[i].parameters
+        else {
+            unreachable!()
+        };
+        *dynamic_range = FrameDynamicRange::Hdr {
+            tone_mapper: ToneMapper::Aces,
+            exposure_stops: exposure,
+        };
+        assert_runtime_path(&g, format!("executions[{i}].parameters"));
+    }
+    let ExecutionKind::FrameOut { color } = baseline.executions[i].kind else {
+        unreachable!()
+    };
+    let family = match baseline.resources[color as usize].plan {
+        ResourcePlan::Texture { family, .. } => family,
+        _ => unreachable!(),
+    } as usize;
+    for format in [
+        TextureFormat::Rgba8UnormSrgb,
+        TextureFormat::Bgra8UnormSrgb,
+        TextureFormat::R32Float,
+    ] {
+        let mut g = baseline.clone();
+        mutate_texture_descriptor(&mut g, color, |descriptor| descriptor.format = format);
+        assert_runtime_path(&g, format!("textureFamilies[{family}].source.descriptor"));
+    }
+
+    let mut sdr_to_hdr = baseline.clone();
+    let NormalizedParameters::FrameOut { dynamic_range, .. } =
+        &mut sdr_to_hdr.executions[i].parameters
+    else {
+        unreachable!()
+    };
+    *dynamic_range = FrameDynamicRange::Hdr {
+        tone_mapper: ToneMapper::Aces,
+        exposure_stops: 0.,
+    };
+    assert_runtime_path(
+        &sdr_to_hdr,
+        format!("textureFamilies[{family}].source.descriptor"),
+    );
+
+    let mut hdr_value = full_cull_graph();
+    hdr_value["nodes"][0]["parameters"]["texture"]["format"] = json!("rgba16_float");
+    let frame_node = node_index(&hdr_value, "frame_out");
+    hdr_value["nodes"][frame_node]["parameters"] = frame_parameters(true);
+    let mut hdr_to_sdr = compile_graph(hdr_value);
+    let hdr_frame = hdr_to_sdr
+        .executions
+        .iter()
+        .position(|e| e.executor.key == "frame_out")
+        .unwrap();
+    let NormalizedParameters::FrameOut {
+        dynamic_range,
+        output_transfer,
+        ..
+    } = &mut hdr_to_sdr.executions[hdr_frame].parameters
+    else {
+        unreachable!()
+    };
+    *dynamic_range = FrameDynamicRange::Sdr;
+    *output_transfer = OutputTransfer::Linear;
+    let linear_surface = RuntimeSurfaceContract {
+        format: wgpu::TextureFormat::Bgra8Unorm,
+        width: 1280,
+        height: 720,
+        usage: wgpu::TextureUsages::RENDER_ATTACHMENT,
+        view_formats: vec![],
+    };
+    prepare_runtime_plan(&hdr_to_sdr, linear_surface.clone(), None).unwrap();
+    let error = prepare_runtime_plan(
+        &hdr_to_sdr,
+        RuntimeSurfaceContract {
+            format: wgpu::TextureFormat::Bgra8UnormSrgb,
+            ..linear_surface
+        },
+        None,
+    )
+    .unwrap_err();
+    assert_eq!(error.code, "GRAPH_SURFACE_INCOMPATIBLE");
+    assert_eq!(
+        error.details["path"],
+        format!("executions[{hdr_frame}].parameters.outputTransfer")
+    );
+}
+
 #[test]
 fn runtime_rejects_mesh_query_predicate_shape_mutations() {
     let baseline = compile_graph(full_cull_graph());
@@ -2997,12 +3260,6 @@ fn runtime_rejects_fullscreen_parameter_and_sample_order_mutations() {
         .position(|execution| execution.executor.key == "fullscreen_copy")
         .unwrap();
     let invalid_parameters = [
-        (
-            "tone_map",
-            NormalizedParameters::ToneMap {
-                exposure: f32::INFINITY,
-            },
-        ),
         (
             "bloom_extract",
             NormalizedParameters::BloomExtract {
@@ -3130,55 +3387,23 @@ fn runtime_rechecks_pipeline_attachment_descriptors() {
             .unwrap()
             .resource
     };
-    let mutate_descriptor =
-        |graph: &mut CompiledGraph, resource: u32, mutate: fn(&mut NormalizedTextureDescriptor)| {
-            let (family, allocation) = match graph.resources[resource as usize].plan {
-                ResourcePlan::Texture {
-                    family, allocation, ..
-                } => (family as usize, allocation.unwrap()),
-                _ => unreachable!(),
-            };
-            let TextureFamilySource::AuthoredTexture {
-                resource: source,
-                descriptor,
-                ..
-            } = &mut graph.texture_families[family].source;
-            mutate(descriptor);
-            let descriptor = descriptor.clone();
-            let ResourcePlan::TextureSource {
-                descriptor: source_descriptor,
-                ..
-            } = &mut graph.resources[*source as usize].plan
-            else {
-                unreachable!()
-            };
-            *source_descriptor = descriptor.clone();
-            let key = &mut graph.allocation_classes[allocation.class as usize].key;
-            key.dimension = descriptor.dimension;
-            key.format = descriptor.format;
-            key.extent = descriptor.extent;
-            key.mip_level_count = descriptor.mip_level_count;
-            key.sample_count = descriptor.sample_count;
-            key.view_formats = descriptor.view_formats;
-        };
-
     let mut graph = baseline.clone();
     let color = attachment(&graph, "color");
-    mutate_descriptor(&mut graph, color, |descriptor| {
+    mutate_texture_descriptor(&mut graph, color, |descriptor| {
         descriptor.format = TextureFormat::Depth32Float;
     });
     assert_runtime_path(&graph, format!("executions[{pipeline}].inputs"));
 
     let mut graph = baseline.clone();
     let depth = attachment(&graph, "depth");
-    mutate_descriptor(&mut graph, depth, |descriptor| {
+    mutate_texture_descriptor(&mut graph, depth, |descriptor| {
         descriptor.format = TextureFormat::Rgba16Float;
     });
     assert_runtime_path(&graph, format!("executions[{pipeline}].inputs"));
 
     let mut graph = baseline;
     let color = attachment(&graph, "color");
-    mutate_descriptor(&mut graph, color, |descriptor| {
+    mutate_texture_descriptor(&mut graph, color, |descriptor| {
         descriptor.extent = NormalizedTextureExtent::Absolute {
             width: 4,
             height: 4,

renderer/src/renderer/executors/pipeline.rs

@@ -102,7 +102,7 @@ pub(crate) fn encode_compiled<T: Scene>(
                     (
                         surface,
                         wgpu::Operations {
-                            load: wgpu::LoadOp::Load,
+                            load: wgpu::LoadOp::Clear(wgpu::Color::TRANSPARENT),
                             store: wgpu::StoreOp::Store,
                         },
                     )

renderer/src/renderer/fullscreen_copy.wgsl

@@ -17,10 +17,29 @@ fn aces(x: vec3<f32>) -> vec3<f32> {
     return clamp((x * (2.51 * x + vec3(0.03))) / (x * (2.43 * x + vec3(0.59)) + vec3(0.14)), vec3(0.0), vec3(1.0));
 }
 fn linear_to_srgb(x: vec3<f32>) -> vec3<f32> {
-    let low = x * 12.92; let high = 1.055 * pow(x, vec3(1.0 / 2.4)) - vec3(0.055);
+    let safe = clamp(x, vec3(0.0), vec3(1.0));
-    return select(high, low, x <= vec3(0.0031308));
+    let low = safe * 12.92; let high = 1.055 * pow(safe, vec3(1.0 / 2.4)) - vec3(0.055);
+    return select(high, low, safe <= vec3(0.0031308));
+}
+struct FrameCoordinates { uv: vec2<f32>, contained: bool }
+fn frame_coordinates(position: vec2<f32>, surface: vec2<f32>, source: vec2<f32>, mode: f32) -> FrameCoordinates {
+    if mode < 0.5 { return FrameCoordinates(position / surface, true); }
+    let surface_aspect = surface.x / surface.y; let source_aspect = source.x / source.y; var size = surface;
+    if (mode < 1.5 && source_aspect > surface_aspect) || (mode > 1.5 && source_aspect < surface_aspect) { size.y = surface.x / source_aspect; } else { size.x = surface.y * source_aspect; }
+    let origin = (surface - size) * 0.5;
+    return FrameCoordinates((position - origin) / size, mode > 1.5 || (all(position >= origin) && all(position < origin + size)));
+}
+@fragment fn fs_frame_out(in: VertexOut) -> @location(0) vec4<f32> {
+    let surface=parameters.values[1].yz; let source=vec2<f32>(textureDimensions(source_texture));
+    let coordinates=frame_coordinates(in.position.xy,surface,source,parameters.values[1].x);
+    if !coordinates.contained {
+        var bg=parameters.values[2]; if parameters.values[0].w > 0.5 { bg=vec4(linear_to_srgb(bg.rgb),clamp(bg.a,0.0,1.0)); } return bg;
+    }
+    let sampled=sample_source(coordinates.uv); var rgb: vec3<f32>;
+    if parameters.values[0].x > 0.5 { rgb=max(sampled.rgb*exp2(parameters.values[0].z),vec3(0.0)); if parameters.values[0].y > 1.5 { rgb=aces(rgb); } else if parameters.values[0].y > 0.5 { rgb=rgb/(vec3(1.0)+rgb); } else { rgb=clamp(rgb,vec3(0.0),vec3(1.0)); } } else { rgb=clamp(sampled.rgb,vec3(0.0),vec3(1.0)); }
+    if parameters.values[0].w > 0.5 { rgb=linear_to_srgb(rgb); }
+    return vec4(clamp(rgb,vec3(0.0),vec3(1.0)),clamp(sampled.a,0.0,1.0));
 }
-@fragment fn fs_tone_map(in: VertexOut) -> @location(0) vec4<f32> { let c=sample_source(in.uv); return vec4(linear_to_srgb(aces(c.rgb * parameters.values[0].x)), c.a); }
 fn grading_result(source: vec4<f32>, graded: vec3<f32>, factor: f32) -> vec4<f32> { return vec4(mix(source.rgb, graded, vec3(factor)), source.a); }
 @fragment fn fs_color_balance(in: VertexOut) -> @location(0) vec4<f32> {
     let c=sample_source(in.uv); var graded: vec3<f32>;

renderer/src/renderer/mod.rs

@@ -33,6 +33,24 @@ struct FullscreenUniforms {
     values: [[f32; 4]; 8],
 }
 
+#[derive(Clone, Copy, Debug, PartialEq, Eq)]
+enum FullscreenSamplerChoice {
+    Linear,
+    Nearest,
+}
+
+fn frame_out_sampler_choice(
+    parameters: &crate::render_graph::NormalizedParameters,
+) -> Option<FullscreenSamplerChoice> {
+    let crate::render_graph::NormalizedParameters::FrameOut { filter, .. } = parameters else {
+        return None;
+    };
+    Some(match filter {
+        crate::render_graph::FrameFilter::Linear => FullscreenSamplerChoice::Linear,
+        crate::render_graph::FrameFilter::Nearest => FullscreenSamplerChoice::Nearest,
+    })
+}
+
 fn pack_fullscreen_uniforms(
     key: &str,
     parameters: &crate::render_graph::NormalizedParameters,
@@ -40,11 +58,7 @@ fn pack_fullscreen_uniforms(
     use crate::render_graph::NormalizedParameters;
     let mut values = [[0.; 4]; 8];
     let first = match (key, parameters) {
-        (
+        ("fullscreen_copy", NormalizedParameters::FullscreenCopy) => [0.; 4],
-            "fullscreen_copy" | "frame_out",
-            NormalizedParameters::FullscreenCopy | NormalizedParameters::FrameOut,
-        ) => [0.; 4],
-        ("tone_map", NormalizedParameters::ToneMap { exposure }) => [*exposure, 0., 0., 0.],
         (
             "color_balance",
             NormalizedParameters::ColorBalance {
@@ -134,10 +148,68 @@ fn pack_fullscreen_uniforms(
     Some(FullscreenUniforms { values })
 }
 
+fn pack_frame_out_uniforms(
+    parameters: &crate::render_graph::NormalizedParameters,
+    surface: &crate::render_graph::RuntimeSurfaceContract,
+) -> Option<FullscreenUniforms> {
+    use crate::render_graph::*;
+    let NormalizedParameters::FrameOut {
+        dynamic_range,
+        output_transfer,
+        scale_mode,
+        background_color,
+        ..
+    } = parameters
+    else {
+        return None;
+    };
+    if *output_transfer == OutputTransfer::Linear && surface.format.is_srgb() {
+        return None;
+    }
+    let (hdr, mapper, exposure) = match dynamic_range {
+        FrameDynamicRange::Sdr => (0., 0., 0.),
+        FrameDynamicRange::Hdr {
+            tone_mapper,
+            exposure_stops,
+        } => (
+            1.,
+            match tone_mapper {
+                ToneMapper::None => 0.,
+                ToneMapper::Reinhard => 1.,
+                ToneMapper::Aces => 2.,
+            },
+            *exposure_stops,
+        ),
+    };
+    let mut values = [[0.; 4]; 8];
+    values[0] = [
+        hdr,
+        mapper,
+        exposure,
+        if *output_transfer == OutputTransfer::Srgb && !surface.format.is_srgb() {
+            1.
+        } else {
+            0.
+        },
+    ];
+    values[1] = [
+        match scale_mode {
+            ScaleMode::Stretch => 0.,
+            ScaleMode::Contain => 1.,
+            ScaleMode::Cover => 2.,
+        },
+        surface.width as f32,
+        surface.height as f32,
+        0.,
+    ];
+    values[2] = *background_color;
+    Some(FullscreenUniforms { values })
+}
+
 fn resolve_fullscreen_entry(key: &str) -> Option<&'static str> {
     match key {
-        "fullscreen_copy" | "frame_out" => Some("fs_copy"),
+        "fullscreen_copy" => Some("fs_copy"),
-        "tone_map" => Some("fs_tone_map"),
+        "frame_out" => Some("fs_frame_out"),
         "color_balance" => Some("fs_color_balance"),
         "exposure_contrast" => Some("fs_exposure_contrast"),
         "saturation" => Some("fs_saturation"),
@@ -153,7 +225,7 @@ fn resolve_fullscreen_entry(key: &str) -> Option<&'static str> {
 #[cfg(test)]
 mod fullscreen_tests {
     use super::*;
-    use crate::render_graph::{ColorBalanceMode, NormalizedParameters};
+    use crate::render_graph::*;
 
     fn assert_packed(key: &str, parameters: NormalizedParameters, expected: &[[f32; 4]]) {
         let packed = pack_fullscreen_uniforms(key, &parameters).unwrap();
@@ -179,15 +251,15 @@ mod fullscreen_tests {
         assert!(packed.values[1..].iter().all(|value| *value == [0.0; 4]));
         assert_eq!(bytemuck::bytes_of(&packed).len(), 128);
         assert!(
-            pack_fullscreen_uniforms("tone_map", &NormalizedParameters::FullscreenCopy).is_none()
+            pack_fullscreen_uniforms("frame_out", &NormalizedParameters::FullscreenCopy).is_none()
         );
     }
 
     #[test]
     fn fullscreen_entries_are_explicit() {
         assert_eq!(resolve_fullscreen_entry("fullscreen_copy"), Some("fs_copy"));
-        assert_eq!(resolve_fullscreen_entry("frame_out"), Some("fs_copy"));
+        assert_eq!(resolve_fullscreen_entry("frame_out"), Some("fs_frame_out"));
-        assert_eq!(resolve_fullscreen_entry("tone_map"), Some("fs_tone_map"));
+        assert_eq!(resolve_fullscreen_entry("tone_map"), None);
         assert_eq!(
             resolve_fullscreen_entry("color_balance"),
             Some("fs_color_balance")
@@ -223,6 +295,296 @@ mod fullscreen_tests {
         assert_eq!(resolve_fullscreen_entry("unknown"), None);
     }
 
+    fn surface(format: wgpu::TextureFormat) -> RuntimeSurfaceContract {
+        RuntimeSurfaceContract {
+            format,
+            width: 1920,
+            height: 1080,
+            usage: wgpu::TextureUsages::RENDER_ATTACHMENT,
+            view_formats: vec![],
+        }
+    }
+
+    fn frame(
+        dynamic_range: FrameDynamicRange,
+        transfer: OutputTransfer,
+        scale_mode: ScaleMode,
+        filter: FrameFilter,
+    ) -> NormalizedParameters {
+        NormalizedParameters::FrameOut {
+            dynamic_range,
+            output_transfer: transfer,
+            scale_mode,
+            filter,
+            background_color: [0.1, 0.2, 0.3, 0.4],
+        }
+    }
+
+    #[test]
+    fn frame_out_packer_tags_all_lanes_and_sampler_is_gpu_independent() {
+        let expected = |first, scale| {
+            [
+                first,
+                [scale, 1920., 1080., 0.],
+                [0.1, 0.2, 0.3, 0.4],
+                [0.; 4],
+                [0.; 4],
+                [0.; 4],
+                [0.; 4],
+                [0.; 4],
+            ]
+        };
+        for (mapper, mapper_tag, scale, scale_tag, filter) in [
+            (
+                ToneMapper::None,
+                0.,
+                ScaleMode::Stretch,
+                0.,
+                FrameFilter::Linear,
+            ),
+            (
+                ToneMapper::Reinhard,
+                1.,
+                ScaleMode::Contain,
+                1.,
+                FrameFilter::Nearest,
+            ),
+            (
+                ToneMapper::Aces,
+                2.,
+                ScaleMode::Cover,
+                2.,
+                FrameFilter::Linear,
+            ),
+        ] {
+            let p = frame(
+                FrameDynamicRange::Hdr {
+                    tone_mapper: mapper,
+                    exposure_stops: -2.,
+                },
+                OutputTransfer::Srgb,
+                scale,
+                filter,
+            );
+            assert_eq!(
+                pack_frame_out_uniforms(&p, &surface(wgpu::TextureFormat::Rgba8Unorm))
+                    .unwrap()
+                    .values,
+                expected([1., mapper_tag, -2., 1.], scale_tag)
+            );
+            assert_eq!(
+                frame_out_sampler_choice(&p),
+                Some(if filter == FrameFilter::Nearest {
+                    FullscreenSamplerChoice::Nearest
+                } else {
+                    FullscreenSamplerChoice::Linear
+                })
+            );
+        }
+        let sdr = frame(
+            FrameDynamicRange::Sdr,
+            OutputTransfer::Srgb,
+            ScaleMode::Stretch,
+            FrameFilter::Linear,
+        );
+        for format in [
+            wgpu::TextureFormat::Bgra8UnormSrgb,
+            wgpu::TextureFormat::Rgba8UnormSrgb,
+        ] {
+            assert_eq!(
+                pack_frame_out_uniforms(&sdr, &surface(format))
+                    .unwrap()
+                    .values,
+                expected([0.; 4], 0.)
+            );
+        }
+        assert_eq!(
+            pack_frame_out_uniforms(&sdr, &surface(wgpu::TextureFormat::Bgra8Unorm))
+                .unwrap()
+                .values,
+            expected([0., 0., 0., 1.], 0.)
+        );
+        let linear = frame(
+            FrameDynamicRange::Sdr,
+            OutputTransfer::Linear,
+            ScaleMode::Stretch,
+            FrameFilter::Linear,
+        );
+        assert_eq!(
+            pack_frame_out_uniforms(&linear, &surface(wgpu::TextureFormat::Bgra8Unorm))
+                .unwrap()
+                .values,
+            expected([0.; 4], 0.)
+        );
+        assert!(
+            pack_frame_out_uniforms(&linear, &surface(wgpu::TextureFormat::Bgra8UnormSrgb))
+                .is_none()
+        );
+        assert_eq!(
+            frame_out_sampler_choice(&NormalizedParameters::FullscreenCopy),
+            None
+        );
+    }
+
+    fn coordinates(
+        p: [f32; 2],
+        surface: [f32; 2],
+        source: [f32; 2],
+        mode: ScaleMode,
+    ) -> ([f32; 2], bool) {
+        if mode == ScaleMode::Stretch {
+            return ([p[0] / surface[0], p[1] / surface[1]], true);
+        }
+        let (sa, ia) = (surface[0] / surface[1], source[0] / source[1]);
+        let mut size = surface;
+        if (mode == ScaleMode::Contain && ia > sa) || (mode == ScaleMode::Cover && ia < sa) {
+            size[1] = surface[0] / ia;
+        } else {
+            size[0] = surface[1] * ia;
+        }
+        let origin = [(surface[0] - size[0]) * 0.5, (surface[1] - size[1]) * 0.5];
+        (
+            [(p[0] - origin[0]) / size[0], (p[1] - origin[1]) / size[1]],
+            mode == ScaleMode::Cover
+                || (p[0] >= origin[0]
+                    && p[1] >= origin[1]
+                    && p[0] < origin[0] + size[0]
+                    && p[1] < origin[1] + size[1]),
+        )
+    }
+
+    #[test]
+    fn frame_coordinates_reference_half_open_centered_crop_and_stretch() {
+        let contain = |p| coordinates(p, [4., 4.], [4., 2.], ScaleMode::Contain);
+        assert_eq!(contain([0., 1.]), ([0., 0.], true));
+        assert_eq!(contain([4., 1.]), ([1., 0.], false));
+        assert_eq!(contain([0., 3.]), ([0., 1.], false));
+        assert!(contain([4. - 0.0001, 3. - 0.0001]).1);
+        for point in [[-1., 2.], [5., 2.], [2., 0.], [2., 4.]] {
+            assert!(!contain(point).1, "outside point {point:?}");
+        }
+        let cover = |p| coordinates(p, [4., 4.], [4., 2.], ScaleMode::Cover);
+        assert_eq!(cover([2., 2.]), ([0.5, 0.5], true));
+        assert_eq!(cover([0., 2.]), ([0.25, 0.5], true));
+        assert_eq!(cover([4., 2.]), ([0.75, 0.5], true));
+        assert_eq!(
+            coordinates([2., 2.], [4., 4.], [1., 9.], ScaleMode::Stretch),
+            ([0.5, 0.5], true)
+        );
+    }
+
+    fn srgb(x: f32) -> f32 {
+        let x = x.clamp(0., 1.);
+        if x <= 0.0031308 {
+            12.92 * x
+        } else {
+            1.055 * x.powf(1. / 2.4) - 0.055
+        }
+    }
+    fn shade(c: [f32; 4], mapper: Option<ToneMapper>, exposure: f32, transfer: bool) -> [f32; 4] {
+        let mut rgb = [0.; 3];
+        for i in 0..3 {
+            let x = if mapper.is_some() {
+                (c[i] * 2f32.powf(exposure)).max(0.)
+            } else {
+                c[i]
+            };
+            rgb[i] = match mapper {
+                Some(ToneMapper::Aces) => {
+                    ((x * (2.51 * x + 0.03)) / (x * (2.43 * x + 0.59) + 0.14)).clamp(0., 1.)
+                }
+                Some(ToneMapper::Reinhard) => x / (1. + x),
+                _ => x.clamp(0., 1.),
+            };
+            if transfer {
+                rgb[i] = srgb(rgb[i]);
+            }
+        }
+        [rgb[0], rgb[1], rgb[2], c[3].clamp(0., 1.)]
+    }
+
+    fn shade_background(
+        c: [f32; 4],
+        _hdr_mapper: ToneMapper,
+        _hdr_exposure_stops: f32,
+        output_transfer: OutputTransfer,
+    ) -> [f32; 4] {
+        let mut rgb = [c[0].clamp(0., 1.), c[1].clamp(0., 1.), c[2].clamp(0., 1.)];
+        if output_transfer == OutputTransfer::Srgb {
+            rgb.iter_mut().for_each(|value| *value = srgb(*value));
+        }
+        [rgb[0], rgb[1], rgb[2], c[3].clamp(0., 1.)]
+    }
+
+    #[test]
+    fn frame_cpu_goldens_process_rgb_with_straight_clamped_alpha_and_background_once() {
+        let close = |actual: f32, expected: f32| {
+            assert!((actual - expected).abs() < 1e-6, "{actual} != {expected}")
+        };
+        for (input, mapper, expected) in [
+            (0., ToneMapper::Aces, 0.),
+            (1., ToneMapper::Aces, 0.8037975),
+            (1., ToneMapper::Reinhard, 0.5),
+            (4., ToneMapper::Reinhard, 0.8),
+            (-1., ToneMapper::None, 0.),
+            (2., ToneMapper::None, 1.),
+        ] {
+            close(
+                shade([input, 0., 0., 0.25], Some(mapper), 0., false)[0],
+                expected,
+            );
+        }
+        for (input, expected) in [(0., 0.), (0.0031308, 0.0404499), (0.18, 0.461356), (1., 1.)] {
+            close(srgb(input), expected);
+        }
+        let low_alpha = shade([0.18, 0.5, 1., 0.25], Some(ToneMapper::Reinhard), 1., true);
+        let opaque = shade([0.18, 0.5, 1., 1.], Some(ToneMapper::Reinhard), 1., true);
+        assert_eq!(&low_alpha[..3], &opaque[..3]);
+        assert_eq!((low_alpha[3], opaque[3]), (0.25, 1.));
+        assert_eq!(shade([0.18, 0.5, 1., 2.], None, 0., false)[3], 1.);
+        let background = [0.18, 0.5, 1., 0.25];
+        let once = shade_background(background, ToneMapper::Aces, 10., OutputTransfer::Srgb);
+        for (actual, expected) in once.into_iter().zip([0.461356, 0.7353569, 1., 0.25]) {
+            close(actual, expected);
+        }
+        assert_eq!(
+            once,
+            shade_background(background, ToneMapper::Reinhard, -10., OutputTransfer::Srgb)
+        );
+        assert_eq!(
+            shade_background(background, ToneMapper::Aces, 10., OutputTransfer::Linear),
+            background
+        );
+        assert_eq!(
+            shade_background(
+                [0.18, 0.5, 1., 1.2],
+                ToneMapper::Aces,
+                10.,
+                OutputTransfer::Srgb
+            )[3],
+            1.
+        );
+        assert_eq!(
+            shade_background(
+                [0.18, 0.5, 1., -0.2],
+                ToneMapper::Aces,
+                10.,
+                OutputTransfer::Srgb
+            )[3],
+            0.
+        );
+        let white = shade_background(
+            [1., 1., 1., 0.25],
+            ToneMapper::Aces,
+            10.,
+            OutputTransfer::Srgb,
+        );
+        white[..3].iter().for_each(|channel| close(*channel, 1.));
+        assert_eq!(white[3], 0.25);
+        let tone_mapped_white = shade([1., 1., 1., 1.], Some(ToneMapper::Aces), 0., false);
+        assert!(tone_mapped_white[0] < 0.81 && white[0] > tone_mapped_white[0]);
+    }
+
     fn balance(mode: ColorBalanceMode) -> NormalizedParameters {
         NormalizedParameters::ColorBalance {
             mode,
@@ -1218,6 +1580,15 @@ impl<T: Scene + 'static> Renderer<T> {
                 min_filter: wgpu::FilterMode::Linear,
                 ..Default::default()
             });
+        let nearest_sampler = self
+            .context
+            .device
+            .create_sampler(&wgpu::SamplerDescriptor {
+                label: Some(" frame nearest clamp"),
+                mag_filter: wgpu::FilterMode::Nearest,
+                min_filter: wgpu::FilterMode::Nearest,
+                ..Default::default()
+            });
         let mut executions = Vec::new();
         for (index, execution) in graph.executions.iter().enumerate() {
             let contract = crate::render_graph::contract(&execution.executor.key)
@@ -1256,9 +1627,20 @@ impl<T: Scene + 'static> Renderer<T> {
                             _ => return Err(fail("fullscreen inputs mismatch")),
                         }
                     };
-                    let values =
+                    let values = if frame_out {
+                        pack_frame_out_uniforms(&execution.parameters, &runtime.surface)
+                    } else {
                         pack_fullscreen_uniforms(&execution.executor.key, &execution.parameters)
+                    }
                     .ok_or_else(|| fail("executor parameters mismatch"))?;
+                    let sampler_choice = if frame_out {
+                        Some(
+                            frame_out_sampler_choice(&execution.parameters)
+                                .ok_or_else(|| fail("executor parameters mismatch"))?,
+                        )
+                    } else {
+                        None
+                    };
                     use wgpu::util::DeviceExt;
                     let uniform =
                         self.context
@@ -1347,7 +1729,15 @@ impl<T: Scene + 'static> Renderer<T> {
                                     },
                                     wgpu::BindGroupEntry {
                                         binding: 2,
-                                        resource: wgpu::BindingResource::Sampler(&sampler),
+                                        resource: wgpu::BindingResource::Sampler(
+                                            if sampler_choice
+                                                == Some(FullscreenSamplerChoice::Nearest)
+                                            {
+                                                &nearest_sampler
+                                            } else {
+                                                &sampler
+                                            },
+                                        ),
                                     },
                                     wgpu::BindGroupEntry {
                                         binding: 3,

static/index.html

@@ -176,7 +176,10 @@
               <option value="ember">Ember</option>
               <option value="hdr">HDR Fullscreen</option>
               <option value="culling">GPU frustum culling</option>
-              <option value="tone">Tone map</option>
+              <option value="tone">ACES display</option>
+              <option value="contain">SDR contain</option>
+              <option value="reinhard">Reinhard cover</option>
+              <option value="linear">Linear clip</option>
               <option value="grading">Grading</option>
               <option value="edges">Edges</option>
               <option value="bloom">Bloom</option>

static/render-graph/catalog.js

@@ -1,5 +1,5 @@
 export const GRAPH_ID = "authored_gpu_culling";
-export const CATALOG_VERSION = 5;
+export const CATALOG_VERSION = 6;
 const exact = (type) => ({ kind: "exact", types: [type] });
 const i = (type, required = true, authoringType) => ({
   accepted: typeof type === "string" ? exact(type) : type,
@@ -120,16 +120,6 @@ export const semanticCatalog = Object.freeze({
     outputs: { color: o("texture") },
     parameters: {},
   },
-  tone_map: {
-    version: 1,
-    execution: "render",
-    inputs: {
-      source: i("texture"),
-      colorTarget: i("texture"),
-    },
-    outputs: { color: o("texture") },
-    parameters: { exposure: 1 },
-  },
   color_balance: {
     version: 1,
     execution: "render",
@@ -198,11 +188,11 @@ export const semanticCatalog = Object.freeze({
     parameters: { strength: 2 },
   },
   frame_out: {
-    version: 1,
+    version: 2,
     execution: "frame",
     inputs: { color: i("texture") },
     outputs: {},
-    parameters: {},
+    parameters: { hdrEnabled: true, toneMapper: "aces", exposureStops: 0, outputTransfer: "srgb", scaleMode: "stretch", filter: "linear", backgroundColor: [0, 0, 0, 1] },
   },
 });
 const socketColors = [
@@ -383,7 +373,6 @@ const parameterSchemas = {
     clearColor: color([0.015, 0.02, 0.03, 1]),
   },
   fullscreen_copy: {},
-  tone_map: { exposure: number(1, 0, 32) },
   color_balance: {
     mode: enumeration("lift_gamma_gain", ["lift_gamma_gain", "offset_power_slope"]), factor: number(1, 0, 1),
     lift: number(0, -1, 1), liftColor: color([1, 1, 1, 1], 0, 4), gamma: number(1, 0.01, 4), gammaColor: color([1, 1, 1, 1], 0, 4), gain: number(1, 0, 4), gainColor: color([1, 1, 1, 1], 0, 4),
@@ -399,7 +388,15 @@ const parameterSchemas = {
   },
   bloom_composite: { intensity: number(1, 0, 16) },
   luminance_edge: { strength: number(2, 0, 16) },
-  frame_out: {},
+  frame_out: {
+    hdrEnabled: boolean(true),
+    toneMapper: enumeration("aces", ["aces", "reinhard", "none"]),
+    exposureStops: number(0, -10, 10),
+    outputTransfer: enumeration("srgb", ["srgb", "linear"]),
+    scaleMode: enumeration("stretch", ["stretch", "contain", "cover"]),
+    filter: enumeration("linear", ["linear", "nearest"]),
+    backgroundColor: color([0, 0, 0, 1]),
+  },
 };
 export const nodeDefinitions = Object.fromEntries(
   Object.entries(semanticCatalog).map(([key, c]) => {
@@ -471,6 +468,17 @@ nodeDefinitions.color_balance.ui = [
   { kind: "parameter", parameter: "factor" },
   { kind: "socket", socket: "source" }, { kind: "socket", socket: "colorTarget" }, { kind: "socket", socket: "color" },
 ];
+nodeDefinitions.frame_out.ui = [
+  { kind: "text", variant: "section", title: "Display Transform" },
+  { kind: "parameter", parameter: "hdrEnabled", title: "HDR" },
+  { kind: "parameter", parameter: "toneMapper", title: "Tone Mapper", visibleWhen: { parameter: "hdrEnabled", equals: true } },
+  { kind: "parameter", parameter: "exposureStops", title: "Exposure", visibleWhen: { parameter: "hdrEnabled", equals: true } },
+  { kind: "parameter", parameter: "outputTransfer", title: "Transfer" },
+  { kind: "parameter", parameter: "scaleMode", title: "Scale" },
+  { kind: "parameter", parameter: "filter" },
+  { kind: "parameter", parameter: "backgroundColor", title: "Background", visibleWhen: { parameter: "scaleMode", equals: "contain" } },
+  { kind: "socket", socket: "color" },
+];
 export const fxNodeComposition = Object.freeze({
   schemaVersion: 2,
   id: "yawn.render-graph",

static/render-graph/presets.js

@@ -4,17 +4,18 @@ const input = (node, socket) => ({ node, socket });
 const node = (id, key, parameters = {}, inputs = {}) => ({
   id, state: "enabled", executor: { key, version: descriptors[key].version }, parameters, inputs,
 });
-const texture = (format, scale = 1) => ({
+const texture = (format, scale = 1, heightScale = scale) => ({
   texture: {
     dimension: "d2", format,
-    extent: { kind: "surface_relative", width: { numerator: 1, denominator: scale }, height: { numerator: 1, denominator: scale }, depthOrArrayLayers: 1 },
+    extent: { kind: "surface_relative", width: { numerator: 1, denominator: scale }, height: { numerator: 1, denominator: heightScale }, depthOrArrayLayers: 1 },
     mipLevelCount: 1, sampleCount: 1, viewFormats: [],
   },
   residency: "transient",
 });
-const scene = (colorTarget, clearColor = [0.015, 0.02, 0.03, 1]) => [
+const frameOut = (hdr, options = {}) => ({ hdrEnabled: hdr, toneMapper: "aces", exposureStops: 0, outputTransfer: "srgb", scaleMode: "stretch", filter: "linear", backgroundColor: [0, 0, 0, 1], ...options });
-  node("hdr", "texture", texture("rgba16_float")),
+const scene = (colorTarget, clearColor = [0.015, 0.02, 0.03, 1], heightScale = 1) => [
-  node("depth", "texture", texture("depth32_float")),
+  node("hdr", "texture", texture("rgba16_float", 1, heightScale)),
+  node("depth", "texture", texture("depth32_float", 1, heightScale)),
   node("mesh", "mesh"),
   node("query", "mesh_query", { visiblePredicate: "required_true", visibleDefault: true, frustumCulledPredicate: "any", frustumCulledDefault: false }, { mesh: input("mesh", "mesh"), isVisible: input("mesh", "isVisible") }),
   node("registry", "pipeline_registry", {}, { pipelineIndices: input("mesh", "pipelineIndices") }),
@@ -26,13 +27,13 @@ const graph = (graphId, nodes) => Object.freeze({ schemaVersion: 2, graphId, rev
 const direct = (graphId, clearColor) => graph(graphId, [
   node("ldr", "texture", texture("rgba8_unorm")),
   ...scene("ldr", clearColor).filter((item) => item.id !== "hdr"),
-  node("frame_out", "frame_out", {}, { color: input("pbr_double", "color") }),
+  node("frame_out", "frame_out", frameOut(false), { color: input("pbr_double", "color") }),
 ]);
 export const midnight = direct("preset_midnight", [0.015, 0.06, 0.18, 1]);
 export const ember = direct("preset_ember", [0.18, 0.035, 0.012, 1]);
 export const hdr = graph("preset_hdr_fullscreen", [
   ...scene("hdr"),
-  node("frame_out", "frame_out", {}, { color: input("pbr_double", "color") }),
+  node("frame_out", "frame_out", frameOut(true), { color: input("pbr_double", "color") }),
 ]);
 export const culling = graph("preset_gpu_culling", (() => {
   const nodes = structuredClone(hdr.nodes);
@@ -43,15 +44,15 @@ export const culling = graph("preset_gpu_culling", (() => {
   return nodes;
 })());
 const postPreset = (graphId, kind) => {
-  const nodes = [node("ldr", "texture", texture("rgba8_unorm")), ...scene("hdr")];
+  const nodes = [...scene("hdr")];
   let source = "pbr_double";
   if (kind === "edges") {
-    nodes.splice(1, 0, node("edge_hdr", "texture", texture("rgba16_float")));
+    nodes.splice(0, 0, node("edge_hdr", "texture", texture("rgba16_float")));
     nodes.push(node("edges", "luminance_edge", { strength: 2 }, { source: input(source, "color"), colorTarget: input("edge_hdr", "texture") }));
     source = "edges";
   }
   if (kind === "bloom" || kind === "combined") {
-    nodes.splice(1, 0,
+    nodes.splice(0, 0,
       node("half_a", "texture", texture("rgba16_float", 2)), node("half_b", "texture", texture("rgba16_float", 2)),
       node("half_c", "texture", texture("rgba16_float", 2)), node("composite_hdr", "texture", texture("rgba16_float")));
     nodes.push(
@@ -62,26 +63,32 @@ const postPreset = (graphId, kind) => {
     );
     source = "composite";
     if (kind === "combined") {
-      nodes.splice(1, 0, node("edge_hdr", "texture", texture("rgba16_float")));
+      nodes.splice(0, 0, node("edge_hdr", "texture", texture("rgba16_float")));
       nodes.push(node("edges", "luminance_edge", { strength: 2 }, { source: input(source, "color"), colorTarget: input("edge_hdr", "texture") }));
       source = "edges";
     }
   }
-  nodes.push(node("tone", "tone_map", { exposure: 1 }, { source: input(source, "color"), colorTarget: input("ldr", "texture") }));
+  nodes.push(node("frame_out", "frame_out", frameOut(true), { color: input(source, "color") }));
-  nodes.push(node("frame_out", "frame_out", {}, { color: input("tone", "color") }));
   return graph(graphId, nodes);
 };
 export const tone = postPreset("preset_tone", "tone");
+const displayPreset = (id, parameters, heightScale = 1) => graph(id, [
+  ...scene("hdr", undefined, heightScale),
+  node("frame_out", "frame_out", parameters, { color: input("pbr_double", "color") }),
+]);
+export const contain = displayPreset("preset_contain", frameOut(false, { scaleMode: "contain", filter: "nearest", backgroundColor: [0.18, 0.18, 0.18, 0.25] }), 2);
+export const reinhard = displayPreset("preset_reinhard", frameOut(true, { toneMapper: "reinhard", exposureStops: 2, scaleMode: "cover", filter: "nearest" }), 2);
+export const linear = displayPreset("preset_linear", frameOut(true, { toneMapper: "none", exposureStops: 2, outputTransfer: "linear" }));
 export const edges = postPreset("preset_edges", "edges");
 export const bloom = postPreset("preset_bloom", "bloom");
 export const combined = postPreset("preset_combined", "combined");
 export const grading = graph("preset_grading", [
-  node("balance_hdr", "texture", texture("rgba16_float")), node("exposure_hdr", "texture", texture("rgba16_float")), node("saturation_hdr", "texture", texture("rgba16_float")), node("mixer_hdr", "texture", texture("rgba16_float")), node("ldr", "texture", texture("rgba8_unorm")),
+  node("balance_hdr", "texture", texture("rgba16_float")), node("exposure_hdr", "texture", texture("rgba16_float")), node("saturation_hdr", "texture", texture("rgba16_float")), node("mixer_hdr", "texture", texture("rgba16_float")),
   ...scene("hdr"),
   node("balance", "color_balance", { mode: "lift_gamma_gain", factor: 1, lift: 0, liftColor: [1,1,1,1], gamma: 1, gammaColor: [1,1,1,1], gain: 1, gainColor: [1,1,1,1], offset: 0, offsetColor: [1,1,1,1], power: 1, powerColor: [1,1,1,1], slope: 1, slopeColor: [1,1,1,1] }, { source: input("pbr_double", "color"), colorTarget: input("balance_hdr", "texture") }),
   node("exposure", "exposure_contrast", { exposureStops: 0, contrast: 1, pivot: 0.18, factor: 1 }, { source: input("balance", "color"), colorTarget: input("exposure_hdr", "texture") }),
   node("saturation", "saturation", { saturation: 1, factor: 1 }, { source: input("exposure", "color"), colorTarget: input("saturation_hdr", "texture") }),
   node("mixer", "channel_mixer", { redOutput: [1,0,0], greenOutput: [0,1,0], blueOutput: [0,0,1], factor: 1 }, { source: input("saturation", "color"), colorTarget: input("mixer_hdr", "texture") }),
-  node("tone", "tone_map", { exposure: 1 }, { source: input("mixer", "color"), colorTarget: input("ldr", "texture") }), node("frame_out", "frame_out", {}, { color: input("tone", "color") }),
+  node("frame_out", "frame_out", frameOut(true), { color: input("mixer", "color") }),
 ]);
-export const renderGraphPresets = Object.freeze({ midnight, ember, hdr, culling, tone, grading, edges, bloom, combined });
+export const renderGraphPresets = Object.freeze({ midnight, ember, hdr, culling, tone, contain, reinhard, linear, grading, edges, bloom, combined });

tests/add-node-menu.test.js

@@ -10,17 +10,13 @@ import {
   spawnRequestedNode,
 } from "../static/render-graph/node-spawn.js";
 
-test("add-node model contains all 17 catalog types in application groups", () => {
+test("add-node model contains all 16 catalog types in application groups", () => {
-  assert.equal(addNodeItems.length, 17);
+  assert.equal(addNodeItems.length, 16);
   assert.deepEqual(
     [...new Set(addNodeItems.map((item) => item.group))],
     ["Source", "Compute", "CPU preparation", "Render / post", "Frame"],
   );
-  assert.equal(new Set(addNodeItems.map((item) => item.typeId)).size, 17);
+  assert.equal(new Set(addNodeItems.map((item) => item.typeId)).size, 16);
-  assert.deepEqual(
-    searchAddNodeItems("tone render").map((item) => item.typeId),
-    ["tone_map"],
-  );
   assert.deepEqual(searchAddNodeItems("no such node"), []);
 });
 
@@ -40,7 +36,7 @@ test("allocator avoids existing and session-reserved IDs and is bounded", () =>
   );
 });
 
-test("all 17 types spawn with exact position, current version and generated ID", async () => {
+test("all 16 types spawn with exact position, current version and generated ID", async () => {
   let revision = 5,
     expectedType;
   const request = { compositionRevision: 5, viewPosition: { x: 12.25, y: -4 } };
@@ -91,13 +87,13 @@ test("spawn rechecks composition after getState and propagates add errors", asyn
     },
   };
   assert.equal(
-    await spawnRequestedNode(root, view, request, "tone_map", allocate),
+    await spawnRequestedNode(root, view, request, "fullscreen_copy", allocate),
     false,
   );
   revision = 2;
   root.getState = async () => ({ version: 3, nodes: [] });
   await assert.rejects(
-    spawnRequestedNode(root, view, request, "tone_map", allocate),
+    spawnRequestedNode(root, view, request, "fullscreen_copy", allocate),
     /must not add/,
   );
 });
@@ -124,7 +120,7 @@ test("spawn cancels when a pending getState becomes mutated or dead", async () =
     root,
     view,
     request,
-    "tone_map",
+    "fullscreen_copy",
     () => "node_a",
     () => alive,
   );
@@ -136,7 +132,7 @@ test("spawn cancels when a pending getState becomes mutated or dead", async () =
     root,
     view,
     request,
-    "tone_map",
+    "fullscreen_copy",
     () => "node_b",
     () => alive,
   );
@@ -161,7 +157,7 @@ test("spawn has a final liveness guard after ID allocation", async () => {
     root,
     view,
     request,
-    "tone_map",
+    "fullscreen_copy",
     () => {
       alive = false;
       return "node_reserved";
@@ -190,7 +186,7 @@ test("spawn suppresses teardown RPC rejections but propagates genuine live add e
       root,
       view,
       request,
-      "tone_map",
+      "fullscreen_copy",
       () => "node_a",
       () => alive,
     ),
@@ -208,7 +204,7 @@ test("spawn suppresses teardown RPC rejections but propagates genuine live add e
       root,
       view,
       request,
-      "tone_map",
+      "fullscreen_copy",
       () => "node_b",
       () => alive,
     ),
@@ -224,7 +220,7 @@ test("spawn suppresses teardown RPC rejections but propagates genuine live add e
       root,
       view,
       request,
-      "tone_map",
+      "fullscreen_copy",
       () => "node_c",
       () => alive,
     ),

tests/fxnode-composition.test.js

@@ -36,8 +36,8 @@ test("production render graph composition passes fxnode's public validator", asy
       result.ok ? undefined : JSON.stringify(result.issues, null, 2),
     );
     assert.equal(fxNodeComposition.schemaVersion, 2);
-    assert.equal(fxNodeComposition.version, 5);
+    assert.equal(fxNodeComposition.version, 6);
-    assert.equal(Object.keys(fxNodeComposition.nodes).length, 17);
+    assert.equal(Object.keys(fxNodeComposition.nodes).length, 16);
     assert.ok(
       Object.values(fxNodeComposition.nodes).every(
         (definition) => definition.migrations.length === 0,

tests/render-graph-authoring.test.js

@@ -24,7 +24,7 @@ function fixture() {
     return {
       id: n.id,
       typeId: n.executor.key,
-      typeVersion: 1,
+      typeVersion: d.version,
       known: true,
       muted: n.state !== "enabled",
       position: { x: 10, y: 20 },
@@ -96,7 +96,7 @@ function fixture() {
 test("catalog exhaustively mirrors all current contracts", () => {
   for (const [key, semantic] of Object.entries(semanticCatalog)) {
     assert.ok(Object.hasOwn(semantic, "version"));
-    assert.equal(semantic.version, 1);
+    assert.equal(semantic.version, key === "frame_out" ? 2 : 1);
     assert.equal(nodeDefinitions[key].version, semantic.version);
     assert.equal(descriptors[key].version, semantic.version);
   }
@@ -110,7 +110,6 @@ test("catalog exhaustively mirrors all current contracts", () => {
       "pipeline_registry",
       "pipeline",
       "fullscreen_copy",
-      "tone_map",
       "color_balance",
       "exposure_contrast",
       "saturation",
@@ -134,7 +133,7 @@ test("catalog exhaustively mirrors all current contracts", () => {
       Object.keys(contract.parameters).sort(),
       key,
     );
-  assert.equal(CATALOG_VERSION, 5);
+  assert.equal(CATALOG_VERSION, 6);
   assert.deepEqual(nodeDefinitions.pipeline.parameters, {
     pipeline: {
       type: "string",
@@ -238,6 +237,7 @@ test("adapter validates and exactly lowers canonical pipeline controls and blur
       visible: socket.visible,
     }),
   );
+  blur.typeVersion = descriptors.bloom_blur.version;
   x.nodes.push(blur);
   assert.deepEqual(
     adaptFxNodeSnapshot(x).nodes.find((node) => node.id === "blur").parameters
@@ -346,6 +346,51 @@ test("adapter rejects hostile shape, IDs, duplicates, catalog, sockets and type
     link.fromSocketId = "mesh:mesh";
   }, "AUTHORING_LINK_TYPE");
 });
+test("Frame Out has the exact v2 schema, defaults, UI, and strict authoring validation", () => {
+  const fields = ["hdrEnabled", "toneMapper", "exposureStops", "outputTransfer", "scaleMode", "filter", "backgroundColor"];
+  assert.equal(CATALOG_VERSION, 6);
+  assert.deepEqual(semanticCatalog.frame_out, {
+    version: 2, execution: "frame", inputs: { color: semanticCatalog.frame_out.inputs.color }, outputs: {},
+    parameters: { hdrEnabled: true, toneMapper: "aces", exposureStops: 0, outputTransfer: "srgb", scaleMode: "stretch", filter: "linear", backgroundColor: [0, 0, 0, 1] },
+  });
+  assert.deepEqual(nodeDefinitions.frame_out.parameters, {
+    hdrEnabled: { type: "boolean", default: { kind: "boolean", value: true } },
+    toneMapper: { type: "string", default: { kind: "string", value: "aces" }, enum: ["aces", "reinhard", "none"] },
+    exposureStops: { type: "number", default: { kind: "number", value: 0 }, minimum: -10, maximum: 10 },
+    outputTransfer: { type: "string", default: { kind: "string", value: "srgb" }, enum: ["srgb", "linear"] },
+    scaleMode: { type: "string", default: { kind: "string", value: "stretch" }, enum: ["stretch", "contain", "cover"] },
+    filter: { type: "string", default: { kind: "string", value: "linear" }, enum: ["linear", "nearest"] },
+    backgroundColor: { type: "color", default: { kind: "color", value: [0, 0, 0, 1] }, minimum: 0, maximum: 1 },
+  });
+  assert.deepEqual(nodeDefinitions.frame_out.ui, [
+    { kind: "text", variant: "section", title: "Display Transform" },
+    { kind: "parameter", parameter: "hdrEnabled", title: "HDR" },
+    { kind: "parameter", parameter: "toneMapper", title: "Tone Mapper", visibleWhen: { parameter: "hdrEnabled", equals: true } },
+    { kind: "parameter", parameter: "exposureStops", title: "Exposure", visibleWhen: { parameter: "hdrEnabled", equals: true } },
+    { kind: "parameter", parameter: "outputTransfer", title: "Transfer" },
+    { kind: "parameter", parameter: "scaleMode", title: "Scale" },
+    { kind: "parameter", parameter: "filter" },
+    { kind: "parameter", parameter: "backgroundColor", title: "Background", visibleWhen: { parameter: "scaleMode", equals: "contain" } },
+    { kind: "socket", socket: "color" },
+  ]);
+  const reject = (mutate, code, parameter) => {
+    const x = fixture(), n = x.nodes.find((node) => node.typeId === "frame_out");
+    mutate(x, n);
+    assert.throws(() => adaptFxNodeSnapshot(x), (e) => e instanceof AuthoringGraphError && e.code === code && (!parameter || e.details.nodeId === n.id && e.details.parameter === parameter));
+  };
+  reject((x) => x.catalogVersion = 5, "AUTHORING_CATALOG");
+  reject((x, n) => n.typeVersion = 1, "AUTHORING_NODE_INVALID");
+  for (const field of fields) reject((x, n) => delete n.parameters[field], "AUTHORING_PARAMETER_SET");
+  reject((x, n) => n.parameters.extra = { kind: "number", value: 0 }, "AUTHORING_PARAMETER_SET");
+  for (const [field, value] of [
+    ["hdrEnabled", 1], ["toneMapper", "bad"], ["outputTransfer", "bad"], ["scaleMode", "bad"], ["filter", "bad"],
+    ["exposureStops", NaN], ["exposureStops", -10.01], ["exposureStops", 10.01],
+    ["backgroundColor", [0, 0, 0]], ["backgroundColor", [0, 0, Infinity, 1]], ["backgroundColor", [-0.01, 0, 0, 1]], ["backgroundColor", [0, 0, 0, 1.01]],
+  ]) reject((x, n) => n.parameters[field].value = value, "AUTHORING_PARAMETER", field);
+  for (const [hidden, value] of [["toneMapper", "bad"], ["exposureStops", Infinity]])
+    reject((x, n) => { n.parameters.hdrEnabled.value = false; n.parameters[hidden].value = value; }, "AUTHORING_PARAMETER", hidden);
+  reject((x, n) => { n.parameters.scaleMode.value = "stretch"; n.parameters.backgroundColor.value = [2, 0, 0, 1]; }, "AUTHORING_PARAMETER", "backgroundColor");
+});
 test("adapter counts only active incoming links and reports socket overflow", () => {
   const x = fixture();
   const active = x.links.find((link) => link.toSocketId === "frame_out:color");

tests/render-graph-presets.test.js

@@ -9,6 +9,9 @@ const order = [
   "hdr",
   "culling",
   "tone",
+  "contain",
+  "reinhard",
+  "linear",
   "grading",
   "edges",
   "bloom",
@@ -61,7 +64,6 @@ const sequences = {
     ["frame_out", "frame_out"],
   ],
   tone: [
-    ["ldr", "texture"],
     ["hdr", "texture"],
     ["depth", "texture"],
     ["mesh", "mesh"],
@@ -70,17 +72,15 @@ const sequences = {
     ["ground", "pipeline"],
     ["pbr", "pipeline"],
     ["pbr_double", "pipeline"],
-    ["tone", "tone_map"],
     ["frame_out", "frame_out"],
   ],
   grading: [
-    ["balance_hdr", "texture"], ["exposure_hdr", "texture"], ["saturation_hdr", "texture"], ["mixer_hdr", "texture"], ["ldr", "texture"],
+    ["balance_hdr", "texture"], ["exposure_hdr", "texture"], ["saturation_hdr", "texture"], ["mixer_hdr", "texture"],
     ["hdr", "texture"], ["depth", "texture"], ["mesh", "mesh"], ["query", "mesh_query"], ["registry", "pipeline_registry"],
     ["ground", "pipeline"], ["pbr", "pipeline"], ["pbr_double", "pipeline"], ["balance", "color_balance"], ["exposure", "exposure_contrast"],
-    ["saturation", "saturation"], ["mixer", "channel_mixer"], ["tone", "tone_map"], ["frame_out", "frame_out"],
+    ["saturation", "saturation"], ["mixer", "channel_mixer"], ["frame_out", "frame_out"],
   ],
   edges: [
-    ["ldr", "texture"],
     ["edge_hdr", "texture"],
     ["hdr", "texture"],
     ["depth", "texture"],
@@ -91,11 +91,9 @@ const sequences = {
     ["pbr", "pipeline"],
     ["pbr_double", "pipeline"],
     ["edges", "luminance_edge"],
-    ["tone", "tone_map"],
     ["frame_out", "frame_out"],
   ],
   bloom: [
-    ["ldr", "texture"],
     ["half_a", "texture"],
     ["half_b", "texture"],
     ["half_c", "texture"],
@@ -112,11 +110,9 @@ const sequences = {
     ["blur_h", "bloom_blur"],
     ["blur_v", "bloom_blur"],
     ["composite", "bloom_composite"],
-    ["tone", "tone_map"],
     ["frame_out", "frame_out"],
   ],
   combined: [
-    ["ldr", "texture"],
     ["edge_hdr", "texture"],
     ["half_a", "texture"],
     ["half_b", "texture"],
@@ -135,10 +131,11 @@ const sequences = {
     ["blur_v", "bloom_blur"],
     ["composite", "bloom_composite"],
     ["edges", "luminance_edge"],
-    ["tone", "tone_map"],
     ["frame_out", "frame_out"],
   ],
 };
+for (const name of ["contain", "reinhard", "linear"])
+  sequences[name] = sequences.tone;
 
 test("presets have the exact canonical pipeline identities, schemas, and node sequences", () => {
   assert.deepEqual(Object.keys(presets.renderGraphPresets), order);
@@ -150,6 +147,9 @@ test("presets have the exact canonical pipeline identities, schemas, and node se
       "preset_hdr_fullscreen",
       "preset_gpu_culling",
       "preset_tone",
+      "preset_contain",
+      "preset_reinhard",
+      "preset_linear",
       "preset_grading",
       "preset_edges",
       "preset_bloom",
@@ -282,16 +282,19 @@ test("presets preserve common mesh, texture, query, pipeline, culling and post w
     node: "cull",
     socket: "isFrustumCulled",
   });
-  for (const name of ["tone", "grading", "edges", "bloom", "combined"])
+  for (const name of ["tone", "contain", "reinhard", "linear", "grading", "edges", "bloom", "combined"])
     assert.ok(!presets[name].nodes.some((node) => node.id === "copy"));
   const finalSource = {
     hdr: "pbr_double",
     culling: "pbr_double",
-    tone: "tone",
+    tone: "pbr_double",
-    grading: "tone",
+    contain: "pbr_double",
-    edges: "tone",
+    reinhard: "pbr_double",
-    bloom: "tone",
+    linear: "pbr_double",
-    combined: "tone",
+    grading: "mixer",
+    edges: "edges",
+    bloom: "composite",
+    combined: "edges",
     midnight: "pbr_double",
     ember: "pbr_double",
   };
@@ -300,21 +303,4 @@ test("presets preserve common mesh, texture, query, pipeline, culling and post w
       node: finalSource[name],
       socket: "color",
     });
-  assert.equal(
-    presets.tone.nodes.find((node) => node.id === "tone").inputs.source.node,
-    "pbr_double",
-  );
-  assert.equal(
-    presets.edges.nodes.find((node) => node.id === "tone").inputs.source.node,
-    "edges",
-  );
-  assert.equal(
-    presets.bloom.nodes.find((node) => node.id === "tone").inputs.source.node,
-    "composite",
-  );
-  assert.equal(
-    presets.combined.nodes.find((node) => node.id === "tone").inputs.source
-      .node,
-    "edges",
-  );
 });