Hi @aerodactyl55 , many thanks for your reply.

Yes - agreed re. device capabilities.  It was one of the first things I checked… and all the things I think I'm using are marked as supported on both GPUs I'm testing on (an NVidia mobile GPU and an embedded Intel GPU).  It could still be some…

Hi,

I'm working on a game in UE4 that uses a compute shader to perform 3D rotations on 2D images. The final rotated image is drawn to a render target after the calculations are done.

Problem: on certain hardware, we're seeing “striping” occur, where rows of pixels are missing from the final image (ex…

hi Gnollrunner,

problem is solved, it works perfectly.

Simply dont know, what i formerly made wrong.

YOU ARE THE BEST !!!

codefreak2022 said:
give a way to greatly reduce cost of this shader.

Your other post looked suspiciously like a job interview test, and it has been locked. This one also is now locked. You have to solve job interview tests (and school tests) on your own.

MJP said:
The newer dxc compiler is much better about these sorts of things, but that's obviously not an option unless you're using D3D12

I'm using HLSL in Custom Expressions in UE4 Materials, so I'm at a pretty basic level of understanding things like API, shader model, etc. In UE4, I can set Direct…

@Matthew_e_ I fixed the issue, I had made a mistake in loading the shaders and was assigning the vertex shader to the pixel shader slot and vice versa. I guess there is a bug that caused the error messages to report the wrong shader versions since the error messages suggested my shader types matche…

@ddlox thank you for taking the time out to answer, your answer is perfect. have a great day