color_matrix

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This extension provides for RGBA colors in pixel operations to be treated as vectors and multiplied by user specified 4x4 color matrix, then scaled/biased.

• Provides simple linear color space conversions (e.g. hsv to rgb).
  
  
• Can reassign or duplicate color components (e.g. rgb to bgr).
  
  
• ColorMatrix is microcoded on Impact.
  
  
• Tuning Tip:
  Use glLoadIdentity() to "disable" color matrix, not glLoadMatrix() .