Opengl 20 Jun 2026

Unreal Engine 3, Doom 3, and Half-Life 2 (with patches) leveraged OpenGL 2.0 for dynamic per-pixel lighting, normal mapping, and parallax occlusion mapping.

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: opengl 20