message: VulkanUtility: mark illegal formats with comments.
diff: @@ -48,10 +48,10 @@ VkFormat getVkFormat(ElementType type, bool normalized) {
  case ElementType::SHORT2: return VK_FORMAT_R16G16_SNORM;
  case ElementType::USHORT2: return VK_FORMAT_R16G16_UNORM;
  // Three Component Types
  - case ElementType::BYTE3: return VK_FORMAT_R8G8B8_SNORM;
  - case ElementType::UBYTE3: return VK_FORMAT_R8G8B8_UNORM;
  - case ElementType::SHORT3: return VK_FORMAT_R16G16B16_SNORM;
  - case ElementType::USHORT3: return VK_FORMAT_R16G16B16_UNORM;
  + case ElementType::BYTE3: return VK_FORMAT_R8G8B8_SNORM; // NOT MINSPEC
  + case ElementType::UBYTE3: return VK_FORMAT_R8G8B8_UNORM; // NOT MINSPEC
  + case ElementType::SHORT3: return VK_FORMAT_R16G16B16_SNORM; // NOT MINSPEC
  + case ElementType::USHORT3: return VK_FORMAT_R16G16B16_UNORM; // NOT MINSPEC
  // Four Component Types
  case ElementType::BYTE4: return VK_FORMAT_R8G8B8A8_SNORM;
  case ElementType::UBYTE4: return VK_FORMAT_R8G8B8A8_UNORM;
  @@ -80,11 +80,11 @@ VkFormat getVkFormat(ElementType type, bool normalized) {
  case ElementType::HALF2: return VK_FORMAT_R16G16_SFLOAT;
  case ElementType::FLOAT2: return VK_FORMAT_R32G32_SFLOAT;
  // Three Component Types
  - case ElementType::BYTE3: return VK_FORMAT_R8G8B8_SINT;
  - case ElementType::UBYTE3: return VK_FORMAT_R8G8B8_UINT;
  - case ElementType::SHORT3: return VK_FORMAT_R16G16B16_SINT;
  - case ElementType::USHORT3: return VK_FORMAT_R16G16B16_UINT;
  - case ElementType::HALF3: return VK_FORMAT_R16G16B16_SFLOAT;
  + case ElementType::BYTE3: return VK_FORMAT_R8G8B8_SINT; // NOT MINSPEC
  + case ElementType::UBYTE3: return VK_FORMAT_R8G8B8_UINT; // NOT MINSPEC
  + case ElementType::SHORT3: return VK_FORMAT_R16G16B16_SINT; // NOT MINSPEC
  + case ElementType::USHORT3: return VK_FORMAT_R16G16B16_UINT; // NOT MINSPEC
  + case ElementType::HALF3: return VK_FORMAT_R16G16B16_SFLOAT; // NOT MINSPEC
  case ElementType::FLOAT3: return VK_FORMAT_R32G32B32_SFLOAT;
  // Four Component Types
  case ElementType::BYTE4: return VK_FORMAT_R8G8B8A8_SINT;
  