Here’s the story.
The most significant feature introduced in OpenGL 2.0 OpenGL Shading Language (GLSL) Animation World Network This milestone replaced the fixed-function pipeline with a programmable pipeline opengl 20
void main() gl_FragColor = vec4(v_color, 1.0); Here’s the story
OpenGL 2.0 (released in 2004) marked a major shift from the fixed-function pipeline toward programmable graphics by introducing the GLSL shading language and programmable vertex and fragment shaders. It bridged older immediate-mode OpenGL usage and more modern GPU-driven rendering workflows, and understanding it is useful for learning GPU pipeline fundamentals and for maintaining or porting older graphics code. To appreciate OpenGL 2
To appreciate OpenGL 2.0, you must understand its predecessor. OpenGL 1.0 (1992) through 1.5 (2003) used a . Imagine an assembly line:
The defining feature of OpenGL 2.0 was the introduction of the . Before this, developers were limited to a set of pre-defined operations (like standard lighting and fog). GLSL allowed programmers to write custom "shaders"—small programs that run directly on the Graphics Processing Unit (GPU)—to control how every pixel and vertex is rendered .