• Lab 5: Lighting & Shaders - Part 2: Due Nov 6
• Lab 6: Textures - begin - Due Nov 13
• Lab 7: Final Project - discuss - Part 1: Due Nov 15

Transforming Normals

Implementing a color map for the fractal landscape

Textures -

• Texels: A texel, or texture element (also texture pixel) is the fundamental unit of texture space.
• Mapping coordinates: (s,t) vs (u,v) vs (x,y,z) vs (x_s, y_s)
  • Mappings
  • Texture - Object - Screen coordinates
  • Types of Projections
• Aliasing
  • Aliasing issues
  • Issues: mipmapping, minification, magnification (see Angel slides)
• Look at Nate Robbin's texture.exe to experiment with texture parameters.
• Implementation in OpenGL - Texture coordinates, parameters, etc (see code in lab)
• Other types of maps
  • Environment Mapping
  • CubeMap Example
  • Bump Mapping, normals