"The power of accurate observation is often called cynicism by those who don't have it."
- George Bernard Shaw
Framework 4 (Last updated: October 25, 2019)
Framework 3 (Last updated: February 6, 2017)
Framework 2 (Last updated: October 8, 2006)
Framework (Last updated: October 8, 2006)
Libraries (Last updated: September 16, 2004)
Really old framework (Last updated: September 16, 2004)
StencilShadows
Wednesday, March 13, 2002 | Permalink

Executable
Source code
StencilShadows.zip (678 KB)

Required:
GL_ARB_multitexture
GL_EXT_texture_env_dot3
GL_ARB_texture_env_combine
GL_EXT_texture_edge_clamp
GL_EXT_texture3D
GL_ARB_texture_env_crossbar or GL_NV_texture_env_combine4
This demo shows dynamic per-pixel lighting with shadows and proper shadow overlapping. The shadows are created by using the stencil buffer and Carmacks reversed algoritm.