XGPU

    • IndexBuffer_Sample.ts

    import { GPURenderer, VertexBuffer, IndexBuffer, BuiltIns, RenderPipeline, Vec2Buffer } from "xgpu";
    import { Sample } from "../HelloTriangle/Sample";


    export class IndexBuffer_Sample extends Sample {


    protected async start(renderer: GPURenderer): Promise<void> {


    const buffer = new VertexBuffer({
    position: new Vec2Buffer([
    -1, -1,
    +1, -1,
    -1, +1,
    +1, +1
    ])
    })


    const indices = new Uint32Array([0, 1, 2, 1, 3, 2])
    const indexBuffer = new IndexBuffer({ nbPoint: indices.length })
    indexBuffer.datas = indices;

    const pipeline = new RenderPipeline();
    pipeline.initFromObject({
    buffer,
    indexBuffer,
    uv: BuiltIns.vertexOutputs.Vec2,
    vertexShader: `
    output.position = vec4(position,0.0,1.0);
    output.uv = position*0.5 + 0.5;
    `,
    fragmentShader: `
    output.color = vec4(uv,0.5,1.0);
    `
    })



    renderer.addPipeline(pipeline);

    }


    }