texture

Documentation

Overview

Textured quad: upload pixel data to a texture and render it on a quad.

Demonstrates:

• Creating and configuring a GL texture (GenTextures, BindTexture, TexParameteri, TexImage2D)
• Using texture coordinates in shaders to sample from the texture
• Drawing a quad as two triangles via an element buffer (DrawElements)
• Reading back pixels to verify texture sampling

A 2x2 checkerboard texture (red/green/blue/white) is created from raw pixel data and mapped onto a fullscreen quad. The program reads back the four quadrant centers to verify correct texturing.