Patent ID: 7525553

Claim:
A computer graphics processor comprising a model information providing unit for providing information representing a set of graphics primitives, a rasterizer capable of generating a first sequence of coordinates which coincide with a base grid associated with the primitive, a color generator for assigning a color to said first sequence of coordinates, and a display space resampler for resampling the color assigned by the color generator in the base grid for coordinates u,v to a representation in a grid associated with a display with coordinates x,y, in a first and a second transformation, carried out in a first and a second pass, and optionally including a transposition, The processor having a selection facility for selecting the order of the transformation and selecting whether to apply a transposition or not based on an evaluation of the partial derivates ∂x/∂u, ∂x/∂v, ∂y/∂u, ∂y/∂v, two of which determine shear and two of which determine scaling in the transformations, the selection being made wherein relatively large derivatives occur as scale factors, and relatively small derivatives occur as shear factors and wherein the lowest amount of shear occurs during the second transformation.