prepass specialize calls

output.txt

2025-09-15T03:33:15.025472Z  INFO prepass_extension: descriptor.label=Some("prepass_pipeline")
2025-09-15T03:33:15.025493Z  INFO prepass_extension: descriptor.label=Some("opaque_mesh_pipeline")
2025-09-15T03:33:15.025507Z  INFO prepass_extension: descriptor.label=Some("opaque_mesh_pipeline") frag_descriptor.shader_defs=[Bool("MESH_PIPELINE", true), Bool("VERTEX_OUTPUT_INSTANCE_INDEX", true), Bool("VERTEX_POSITIONS", true), Bool("VERTEX_NORMALS", true), Bool("VERTEX_UVS", true), Bool("VERTEX_UVS_A", true), Bool("MULTISAMPLED", true), Bool("NORMAL_PREPASS", true), Bool("DEPTH_PREPASS", true), Bool("MOTION_VECTOR_PREPASS", true), Bool("VIEW_PROJECTION_PERSPECTIVE", true), Bool("TONEMAP_IN_SHADER", true), UInt("TONEMAPPING_LUT_TEXTURE_BINDING_INDEX", 18), UInt("TONEMAPPING_LUT_SAMPLER_BINDING_INDEX", 19), Bool("TONEMAP_METHOD_TONY_MC_MAPFACE", true), Bool("DEBAND_DITHER", true), Bool("MAY_DISCARD", true), Bool("SHADOW_FILTER_METHOD_GAUSSIAN", true), Int("SCREEN_SPACE_SPECULAR_TRANSMISSION_BLUR_TAPS", 8), Bool("MULTIPLE_LIGHT_PROBES_IN_ARRAY", true), Bool("MULTIPLE_LIGHTMAPS_IN_ARRAY", true), Bool("IRRADIANCE_VOLUMES_ARE_USABLE", true), UInt("MATERIAL_BIND_GROUP", 3)]
2025-09-15T03:33:15.025501Z  INFO prepass_extension: descriptor.label=Some("prepass_pipeline") frag_descriptor.shader_defs=[Bool("PREPASS_PIPELINE", true), UInt("MATERIAL_BIND_GROUP", 3), Bool("VERTEX_OUTPUT_INSTANCE_INDEX", true), Bool("DEPTH_PREPASS", true), Bool("MAY_DISCARD", true), Bool("VERTEX_POSITIONS", true), Bool("VERTEX_UVS", true), Bool("VERTEX_UVS_A", true), Bool("NORMAL_PREPASS", true), Bool("NORMAL_PREPASS_OR_DEFERRED_PREPASS", true), Bool("VERTEX_NORMALS", true), Bool("MOTION_VECTOR_PREPASS_OR_DEFERRED_PREPASS", true), Bool("MOTION_VECTOR_PREPASS", true), Bool("MULTIPLE_LIGHTMAPS_IN_ARRAY", true), Bool("PREPASS_FRAGMENT", true)]
2025-09-15T03:33:15.143593Z  INFO prepass_extension: descriptor.label=Some("prepass_pipeline")
2025-09-15T03:33:15.143610Z  INFO prepass_extension: descriptor.label=Some("prepass_pipeline") frag_descriptor.shader_defs=[Bool("PREPASS_PIPELINE", true), UInt("MATERIAL_BIND_GROUP", 3), Bool("VERTEX_OUTPUT_INSTANCE_INDEX", true), Bool("DEPTH_PREPASS", true), Bool("MAY_DISCARD", true), Bool("VERTEX_POSITIONS", true), Bool("VERTEX_UVS", true), Bool("VERTEX_UVS_A", true), Bool("MULTIPLE_LIGHTMAPS_IN_ARRAY", true)]

specialize.rs

    fn specialize(
        pipeline: &MaterialPipeline,
        descriptor: &mut RenderPipelineDescriptor,
        _layout: &MeshVertexBufferLayoutRef,
        _key: MaterialPipelineKey<Self>,
    ) -> Result<(), SpecializedMeshPipelineError> {
        info!(?descriptor.label);

        if let Some(frag_descriptor) = &descriptor.fragment
        {
            info!(?descriptor.label, ?frag_descriptor.shader_defs);
        }

        Ok(())
    }