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Wrong 3D Texture UAV Generation

The code that generates UAVs for 3D textures fails when the Z axis is shorter than the others when generating mips, as it does SizeZ >> MipLevel.

It should be max(SizeZ >> MipLevel,1) instead, otherwise it goes to 0 when SizeZ gets smaller than 2^MipLevel and that makes the UAV creation to fail.

The problem is on line 92 of D3D12UAV.cpp and on line 67 of D3D11UAV.cpp . Haven't checked the other RHIs.

Product Version: UE 4.16
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asked Jul 19 '17 at 08:23 PM in Bug Reports

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RyanTorant
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