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>
1.1 KiB
1.1 KiB
Meshes and instances
Every Mesh is an instance. clone() shares geometry and allocates only a new node/mesh slot.
const source = new Mesh(scene, {
vertexData: {
positions: [-0.2, -0.2, 0, 0.2, -0.2, 0, 0, 0.25, 0],
indices: [0, 1, 2],
},
});
await source.ready;
for (let x = -4; x <= 4; x++) {
const instance = source.clone({ position: [x * 0.2, 0, 0] });
await instance.ready;
}
Copy-on-write geometry
The default vertex kinds are positions, normals, tangents, uvs, colors, and indices. Mutating any kind on an instanced clone first makes that mesh's geometry unique.
const clone = source.clone();
await clone.ready;
await clone.setVertexData("positions", [
-0.4, -0.2, 0,
0.4, -0.2, 0,
0.0, 0.5, 0,
]);
Per-face materials and visibility
await mesh.setMaterialForFaces(red, [0, 2, 4]);
mesh.material = blue;
mesh.isVisible = false; // one direct u32 write
Face rows store optional material pointers; a zero lane falls back to mesh.material.