is it possible to overlay a transparent button like a round button on OpenGL rendering context?when I Transparent a UI element it blend with original window background not rendered context.
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jalal sadeghi
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What middleware/framework are you using, to generate the UI element ? The compositor that is generating the final (full)screen needs to be aware of both the OpenGL context and the UI element to be able to blend both of them. – Prabindh Feb 17 '14 at 10:36
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I am using .net Windows form o genertae UI elements. – jalal sadeghi Feb 17 '14 at 10:43
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after research to do this i think its needes to copy frame buffer to Window HDC.lik http://stackoverflow.com/questions/4052940/how-to-make-an-opengl-rendering-context-with-transparent-background?rq=1 – jalal sadeghi Feb 18 '14 at 06:52