Vulkan's CommandList::copyTexture copies the entire region instead of slice.

[01Pollux]

copyTexture(ITexture* _dst, const TextureSlice& dstSlice, IStagingTexture* _src, const TextureSlice& srcSlice) and copyTexture(IStagingTexture* _dst, const TextureSlice& dstSlice, ITexture* _src, const TextureSlice& srcSlice) uses vk::Extent3D srcMipSize/dstMipSize of the whole image instead of the slice that was resolved.

nvrhi/src/vulkan/vulkan-staging-texture.cpp

Lines 180 to 182 in 9939653

	vk::Extent3D srcMipSize = src->imageInfo.extent;
	srcMipSize.width = std::max(srcMipSize.width >> resolvedDstSlice.mipLevel, 1u);
	srcMipSize.height = std::max(srcMipSize.height >> resolvedDstSlice.mipLevel, 1u);

nvrhi/src/vulkan/vulkan-staging-texture.cpp

Lines 229 to 231 in 9939653

	vk::Extent3D dstMipSize = dst->imageInfo.extent;
	dstMipSize.width = std::max(dstMipSize.width >> resolvedDstSlice.mipLevel, 1u);
	dstMipSize.height = std::max(dstMipSize.height >> resolvedDstSlice.mipLevel, 1u);

was this the intended behaviour?

[apanteleev]

This was a bug, now fixed. Thank you for reporting it!