OpenGL Graphics - Documentation

This page provides a foundational overview of OpenGL graphics.

OpenGL Graphics - Documentation

This is a basic demonstration of OpenGL rendering. We'll explore:

– Vertex shaders

– Pixel shaders

– Basic color representation

Overview

OpenGL is a graphics API (Application Programming Interface) that allows developers to create 2D and 3D graphics applications. It's commonly used in games, desktop applications, and scientific visualization.

Graphics Background

This page focuses on a simplified example to illustrate key concepts.

Vertex Shader

The vertex shader processes each vertex of a primitive shape (e.g., triangle) and determines its position in the 3D scene.

This is a simplified representation; more complex vertex shaders would involve shading, lighting, and more.

The vertex position is transformed to the scene.

A color bar displays the color value of each vertex.

Pixel Shader

The pixel shader is responsible for rendering each pixel on the screen.

It takes the vertex position and texture coordinates (UV coordinates) as input and calculates the final color of the pixel.