Ampandheaust
9768765d74
Provide the single-loadout Scene API, SAB-backed meshes, cameras, materials, lights, workers, post effects, and tutorial playgrounds. Batch matching row growth so active GPU loadouts refresh once. Amp-Thread-ID: https://ampcode.com/threads/T-01a01380-b478-77d0-84a0-102880a5c5ae Co-authored-by: Heaust Azure <heaust.azure@gmail.com>
1.3 KiB
1.3 KiB
Compute passes
Compute shaders are graph data, not core code. Declare the shared rows/resources a shader needs and attach the pass to Scene.
const velocity = await scene.ensureRows("velocity", 4096, 16, "f32");
const simulation = new ComputePass({
id: "integrate",
code: `
@group(0) @binding(0)
var<storage, read_write> velocity: array<vec4<f32>>;
@compute @workgroup_size(64)
fn main(@builtin(global_invocation_id) id: vec3<u32>) {
if (id.x < arrayLength(&velocity)) {
velocity[id.x].y -= 0.001;
}
}
`,
buffers: [{ id: "velocity", array: "velocity", usage: ["storage"] }],
bindings: [{ group: 0, binding: 0, resource: "velocity" }],
dispatch: [64, 1, 1],
});
await scene.addComputePass(simulation);
The graph DAG places an unqualified custom compute pass after light clustering and makes forward rendering depend on all custom compute passes. Use after to specify other dependencies.
await simulation.update({ dispatch: [128, 1, 1] });
await scene.removeComputePass(simulation);
Both operations are infrequent graph/loadout messages. Existing source row changes are direct SAB writes.
<script setup> import Playground from "../.vitepress/Playground.vue"; </script>