CS 4621: Lecture 4

Recap

• The GLSL Programming Language
  • Vector data types: vec2, vec3, vec4, and so on.
  • Matrix data types: mat2, mat3, and mat4.
  • Arrays
  • Swizzling
• Three ways to pass data to GLSL
  • Vertex attributes
  • Uniform variables
  • Varying variables

This time

• The glMatrix library
• Passing vectors and matrices to WebGL
• Applying linear and affine transformations in GLSL code

Exhibits

• #0: glMatrix
• #1: Linear Transformation
• #2: Affine Transformation