GetAttribLocation not working.

[Hromon]

Summary

GetAttribLocation always return -1.

Steps to reproduce

• Platform: Desktop
• Framework Version: .NET 5
• API: OpenGL
• API Version: OpenGL 3.3 Core

[Perksey]

That's because Ir is not an attribute. It is a uniform, and you'll need to use GetUniformLocation for uniforms.

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[Hromon]