texture_color_table

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This extension allows post texturing 1-dimensional lookups on an individual component basis

• Use to expand luminance or intensity textures to RGB.
  
  
• Can linearize the results of color space conversions implemented by multidimensional texture table lookup (pixel_texture).
  
  
• On IMPACT, this is implemented in hardware, with the following limitations:
  - maximum of 3 components output
  - can not be used in combination with fog