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Complete interactive lighting and shading module (C++, OpenGL, SGI)
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Allows almost any changes of light, surface or volume parameter (5 to 10 FPS)
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light color, intensity, from/to positions and cone angle
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surface color, diffuseness, specular and roughness
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fog color and density
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Preprocessing handles any texture map including displacement
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Spotlight fog shadows (1 or 2 FPS)
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Low resolution and interlace modes for faster rendering
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Reprojection for camera changes
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Various tools for artists (intensity, diffuse, specular, shadow)
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Set the intensity of a pixel with a double-click
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Allows click&drag of diffuse or specular highlights
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Allows interactive click&drag of shadows
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Realistic RenderMan shaders (silk, velvet, satin, perl, metal, skin, fur, nylon)
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Light version of these shaders for interactivity
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Complete and intuitive UI
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The module and shaders were used successfully in an actual production of TFX
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