For app reason I need to retrieve a screenshot of the screen, or to better say only the OpenGL drawn section. In all other devices my function works and uses the OpenGL primitive: "glReadPixels(...)" On Galazy S9 the result is a buffer completely black, I've also try to use the "glGetError()" and it returns: "GL_NO_ERROR". Have you some idea how can I solve it?
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which OpenGL ES version? can you add the parameters you are using for glReadPixels()? – D-rk May 29 '18 at 09:30
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Which GPU? There are two versions of the Galaxy S9. – solidpixel May 29 '18 at 12:39
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OpenGL ES version = 2 GPU= ARM Mali-G72 MP18 – user1254938 Jun 07 '18 at 09:33
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I want to include that I'm experiencing the same issue and am looking for an answer. – Snwspeckle Jun 28 '18 at 00:46