texture4D

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This extension provides support for 4-dimensional texture mapping targeted for 4-dimensional color component lookup.

• No support for mipmapping or borders.
  
  
• IMPACT provides trilinear interpolation with nearest in the 4th dimension.
  
  
• No single pass quadlinear support on IMPACT.
  
  
• Quadlinear can be achieved using a 2-pass algorithm with alpha blending.