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Electro
Wednesday, May 28, 2003 | Permalink

Executable
Source code
Electro.zip (88 KB)

Required:
GL_ARB_fragment_program
GL_EXT_texture3D
Here another low instruction count wonder. It's a electric flash kind of procedural texture in a style similar to those seen in Unreal/UT, except this is done in a shader, thus hardly requiring any AGP bandwidth while offering better quality and cost scaling well with size on screen. I couldn't do this effect in just 8 instructions like the Fire demo below, but had to settle for 9 instructions. Though in practice it runs faster than the Fire demo since it uses less complex instructions and no dependent texture reads.

Should run on Radeon 9500+ and GeForce FX.