Please note: We are aware of an issue affecting replies on the Arm Community forums, which may not be loading as expected.
We apologize for any inconvenience and appreciate your patience while we investigate and work to resolve the issue.
Thank you for your understanding.
Hello
Fragment Shader can't read uniform block On Galaxy S6(Mali-T760 MP8).For example, these uniform block parameters are NaN.layout(std140, column_major) uniform _ub_params_vec4{ vec4 _ub_param0; vec4 _ub_param1; vec4 _ub_param2; vec4 _ub_param3;} ub_params;
As long as I tried,- Not all but some draw calls can be read.- It has not happened on other phones/chipset.- No OpenGL Error.- It can read uniform parameters.
Could you tell me something that might be the cause?Thanks.
Hi runios,
Is it possible to get the complete shader that triggers this problem? It's hard to debug from a small snippet.
Thanks Pete
We've done a bit more digging in the driver logs and the only known issue we have on UBO access in older drivers is some optimization pass triggering problems if the shader is using:
layout(early_fragment_tests)
Try disabling this if you are using it.
Cheers,Pete