Bump Mapping

Specular component



• Diffuse factor = N.L, Specular factor = N.H ^ shiny
• Transform V into tangent space, H = .5 (V + L),
  • process N•H like N•L
• But raise to power? Copy to texture, use a table
  • texture load (e.g. glPixelMap, DDPF_PALETTEINDEXEDn or host processing)
  • Post-lookup (e.g. GL_TEXTURE_COLOR_TABLE_SGI)

Previous slide

Next slide

Back to first slide

View graphic version