bind method

@override void bind(RenderPass pass, HostBuffer transientsBuffer, Lighting lighting)

Binds this material's render-pass state, uniforms, and textures.

The base implementation enables back-face culling with counter-clockwise winding (matching the glTF convention). Subclasses must call super.bind and then bind any per-material uniforms and textures expected by their fragment shader. lighting carries the IBL EnvironmentMap (and its intensity) plus the analytic lights and shadow resources that materials shade against.

Implementation

@override
void bind(
  gpu.RenderPass pass,
  gpu.HostBuffer transientsBuffer,
  Lighting lighting,
) {
  super.bind(pass, transientsBuffer, lighting);

  var fragInfo = Float32List.fromList([
    baseColorFactor.r, baseColorFactor.g,
    baseColorFactor.b, baseColorFactor.a, // color
    vertexColorWeight, // vertex_color_weight
  ]);
  pass.bindUniform(
    fragmentShader.getUniformSlot("FragInfo"),
    transientsBuffer.emplace(ByteData.sublistView(fragInfo)),
  );
  pass.bindTexture(
    fragmentShader.getUniformSlot('base_color_texture'),
    baseColorTexture,
    sampler: gpu.SamplerOptions(
      widthAddressMode: gpu.SamplerAddressMode.repeat,
      heightAddressMode: gpu.SamplerAddressMode.repeat,
    ),
  );
}