Carefully about gluOrtho2D in Fragment Shader
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16 years, 6 months ago
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Quote:Original post by KambizThe coordinates are arbitrary and do not have anything to do with the actual width and height of the back-buffer (or your image) in pixels, but you…
16 years, 6 months ago
16 years, 6 months ago
I come cross gluOrtho2D Function in drawing the texture using Fragment Shader. This seems to be the standard way to do it. // viewport for 1:1 pixel=texel=geometry mapping glMat…
16 years, 6 months ago
I am new about GLSL. I have a simple question about: How to sum all pixel values in the fragment shader. I want to measure simple differences between two images in the fragment…
16 years, 6 months ago
Quote:In the first stage, your render target is only 4 pixels, so the fragment shader will only run 4 times (not 16 times). Each time the fragment shader execute it ta…
16 years, 6 months ago
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See all in DiscussionsQuote:Original post by KambizThe coordinates are arbitrary and do not have anything to do with the actual width and height …
16 years, 6 months ago
I come cross gluOrtho2D Function in drawing the texture using Fragment Shader. This seems to be the standard way to …
16 years, 6 months ago
Quote:In the first stage, your render target is only 4 pixels, so the fragment shader will only run 4 times …
16 years, 6 months ago
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