MacOS/AMD glLinkProgram warnings (not errors) #58749
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Reference: blender/blender#58749
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Hi. There seems to be a lot of issues with MacOS AMD drivers.
When running Blender 2.8 with
apitrace
a lot of the same warnings appear whenglLinkProgram
is done, but no glErrors are generated.I think the problem is closely related to this:
Program #55 is the first one generating this warning.
Some more in sequence (if not mentioned, no warning):
Program #66 is related to
#55987
. (AMD Radeon Pro/R9/RX
)My guess would be that (only?) Apple's AMD glCompileShader removes unused variables, while all other implementations keeps them.
I have little knowledge of GLSL, but if someone has any ideas on how to fix this I could try them out.
Added subscriber: @nielspl-2
Changed status from 'Open' to: 'Archived'
This is not an error only a warning. As long as shader interface (in and out variables) matches the compilation / linking is ok.
We had to make sure the interface matches for eevee in the past so that's why there is many related warning.