WebGPUTextures: Complete block data spec.

examples/jsm/renderers/webgpu/WebGPUTextures.js

@@ -480,9 +480,15 @@ class WebGPUTextures {
 
 	_getBlockData( format ) {
 
-		if ( format === GPUTextureFormat.BC1RGBAUnorm || format === GPUTextureFormat.BC1RGBAUnormSRGB ) return { byteLength: 8, width: 4, height: 4 };
-		if ( format === GPUTextureFormat.BC2RGBAUnorm || format === GPUTextureFormat.BC2RGBAUnormSRGB ) return { byteLength: 16, width: 4, height: 4 };
-		if ( format === GPUTextureFormat.BC3RGBAUnorm || format === GPUTextureFormat.BC3RGBAUnormSRGB ) return { byteLength: 16, width: 4, height: 4 };
+		// this method is only relevant for compressed texture formats
+
+		if ( format === GPUTextureFormat.BC1RGBAUnorm || format === GPUTextureFormat.BC1RGBAUnormSRGB ) return { byteLength: 8, width: 4, height: 4 }; // DXT1
+		if ( format === GPUTextureFormat.BC2RGBAUnorm || format === GPUTextureFormat.BC2RGBAUnormSRGB ) return { byteLength: 16, width: 4, height: 4 }; // DXT3
+		if ( format === GPUTextureFormat.BC3RGBAUnorm || format === GPUTextureFormat.BC3RGBAUnormSRGB ) return { byteLength: 16, width: 4, height: 4 }; // DXT5
+		if ( format === GPUTextureFormat.BC4RUnorm || format === GPUTextureFormat.BC4RSNorm ) return { byteLength: 8, width: 4, height: 4 }; // RGTC1
+		if ( format === GPUTextureFormat.BC5RGUnorm || format === GPUTextureFormat.BC5RGSnorm ) return { byteLength: 16, width: 4, height: 4 }; // RGTC2
+		if ( format === GPUTextureFormat.BC6HRGBUFloat || format === GPUTextureFormat.BC6HRGBFloat ) return { byteLength: 16, width: 4, height: 4 }; // BPTC (float)
+		if ( format === GPUTextureFormat.BC7RGBAUnorm || format === GPUTextureFormat.BC7RGBAUnormSRGB ) return { byteLength: 16, width: 4, height: 4 }; // BPTC (unorm)
 
 	}
 

examples/jsm/renderers/webgpu/constants.js

@@ -150,7 +150,7 @@ export const GPUTextureFormat = {
 	BC4RSNorm: 'bc4-r-snorm',
 	BC5RGUnorm: 'bc5-rg-unorm',
 	BC5RGSnorm: 'bc5-rg-snorm',
-	BC6HRGBUfloat: 'bc6h-rgb-ufloat',
+	BC6HRGBUFloat: 'bc6h-rgb-ufloat',
 	BC6HRGBFloat: 'bc6h-rgb-float',
 	BC7RGBAUnorm: 'bc7-rgba-unorm',
 	BC7RGBAUnormSRGB: 'bc7-rgba-srgb',