HLSL - how does vertex shader's output POSITION0 affect pixel shader's texture mapping uv?

Question

It seems POSITION/POSITION0's w devide everything in output struct. thus made pixel shader can do correct perspective mapping.and it cant be removed,otherwise pixel shader wont output anything.

i didn't see any configuration in program code. Is it a fixed default setting for all devices? or can i customize this setting?

score 1 · Accepted Answer · answered Mar 02 '17 at 21:13

1

You have the choice to disable the perspective correction in hlsl on any interpolator as find here.

The modifier you want is noperspective.

answered Mar 02 '17 at 21:13

galop1n

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HLSL - how does vertex shader's output POSITION0 affect pixel shader's texture mapping uv?

1 Answers1