ScriptReference/GL.LoadPixelMatrix

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ScriptReference/GL.LoadPixelMatrix

https://docs.unity3d.com/ScriptReference/GL.LoadPixelMatrix.html

[mvi]

Note that the z value is inclusive of +1 on Windows, but exclusive on Mac. If you wish to draw at the very front you should use a value of 0.99 instead of 1 to maintain cross platform support. Otherwise your polygon will render correctly on Windows but be invisible on Mac.