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>
1.6 KiB
1.6 KiB
Materials and textures
PBRMaterial is a conventional view over materials and materialTextures SOA rows.
const paint = new PBRMaterial(scene, {
baseColor: [0.8, 0.05, 0.03, 1],
metallic: 0.65,
roughness: 0.22,
emissive: [0, 0, 0],
});
await paint.ready;
paint.roughness = 0.5; // direct SAB write
paint.baseColor[1] = 0.35; // direct SAB write
mesh.material = paint;
Graph textures
const albedo = new Texture(scene, {
source: "/textures/paint.ktx2",
size: [2048, 2048, 1],
format: "rgba8unorm-srgb",
usage: ["sampled", "copyDst"],
});
await albedo.ready;
const textured = new PBRMaterial(scene, { baseColorTexture: albedo });
Creating or removing a Texture rebuilds the single graph loadout so the GPU resource is allocated up front. The source pointer stays on the handle for an importer or application uploader; core never owns image-loading policy.
Custom WGSL
ShaderMaterial adds its external WGSL pipeline to the scene graph. Updating the code updates the loadout.
const shader = new ShaderMaterial(scene, {
code: `
struct Out { @builtin(position) position: vec4<f32> }
@vertex fn vertex(@builtin(vertex_index) id: u32) -> Out {
let p = array(vec2(-.2, -.2), vec2(.2, -.2), vec2(0., .2));
var out: Out; out.position = vec4(p[id], 0., 1.); return out;
}
@fragment fn fragment() -> @location(0) vec4<f32> {
return vec4(1., .2, .7, 1.);
}
`,
});
await shader.ready;