The year was 2001, and the graphics programming world was a kingdom divided. On one side stood the wizards of Direct3D, armed with a powerful, if capricious, new magic called shaders. On the other side knelt the followers of OpenGL, the ancient and noble order of the Fixed-Function Pipeline.
Yet here we are, 20 years past its supposed expiration date. OpenGL didn't just survive; it pulled off the greatest quiet comeback in software history. opengl 20
// Fragment Shader uniform sampler2D myTexture; void main() gl_FragColor = texture2D(myTexture, gl_TexCoord[0].xy); The Taming of the Pipeline The year was
The ARB was a peculiar body. It was a committee of rivals: engineers from competing hardware companies, software architects from middleware firms, and academics who cared only about mathematical purity. Reaching a consensus was like herding cats that all believed they were lions. Yet here we are, 20 years past its supposed expiration date
A Fragment Shader (often called a pixel shader) executes once per potential pixel (fragment). It replaces texture combiners and fog calculations. With GLSL, you can: