HLSL print function while run the code for unity shader compute

Question

i use HLSL for shaders in unity games and i need to print some values and the HLSL dont have console or something like console ,because it is run from unity compute shaders.

so How i can print the Values in HLSL.

You can't actually print from shaders, but you can definitly use debuggers. — limserhane
– limserhane, Commented May 31, 2022 at 12:15
"so How i can print the Values in HLSL" - quite simply you can't. Remember a shader runs for all pixels at the best of times so even if you could your console would fill up pretty quick. Generally people make a funky shader to diagnose shaders where particular colours imply certain states about the shader. — user585968
– user585968, Commented May 31, 2022 at 12:15
Also, the CPU doesn't have access to the internals of the GPU and this is especially the case for compute shaders (GPGPU) due to their love for all things massively parallel. — user585968
– user585968, Commented May 31, 2022 at 12:16
docs.unity3d.com/Manual/SL-VertexFragmentShaderExamples.html. examples there how you can use a shader to output debug colours. See "Using mesh normals for fun and profit" — user585968
– user585968, Commented May 31, 2022 at 12:31

viruseg · Accepted Answer · 2022-06-03 18:06:08Z

0

Use RenderDoc to debug shaders.

https://renderdoc.org/

https://docs.unity3d.com/Manual/RenderDocIntegration.html

answered Jun 3, 2022 at 18:06

viruseg

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