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Grid patter appear over bloom when resolution is lower than 1366x768

The bloom post process in our engine is done via consecutive downscaling of the treshhold texture down to 1/64x1/64 of the main size. Every texture we use is R16G16B16A16 FP16. Afterwards, we ...
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Blur offset artifacts

I have simple blur shader which I calculate offsets in: Piece of vertex shader: output.texCoord1 = input.tex + float2( texelSize * -4.0f, 0.0f ); output.texCoord12 = input.tex + float2( texelSize * ...