Shader Coding - Best Practices
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Work in progress This article or section will be worked on in the upcoming hours or days. Note: Will be based on: http://www.mail-archive.com/flightgear-devel@lists.sourceforge.net/msg35934.html See history for the latest developments. |
Vertex Shaders
Note For testing purposes, you can use a simple pass-through vertex shader:
#version 120
void main(void) {
gl_Position = ftransform();
}
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Fragment Shaders
Note To check if your shader is working, add this as the last line, it should turn all pixels black:
gl_FragColor = vec4 (0.0,0.0,0.0,1.0);
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Note This is how you can make a pixel darker:
gl_FragColor = color * 0.5;
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