Abstract: An apparatus for mapping primitives of a 3D graphics model from a texture space to a screen space. The apparatus includes a texture memory (134) for storing texture maps. A resampler (132, 140) resamples, for each primitive, data from a texture map that corresponds to the primitive to corresponding pixel data defining a portion of a display image that corresponds to the primitive. The texture space resampler (132) and/or the screen space resampler (140) is operative to select a resampling algorithm for performing the resampling from a respective set of at least two distinct resampling algorithms. The selection is done in dependence on a size of the primitive.

Abstract: Computer graphics processing operations are executed on information relating to a model of one or more three-dimensional objects which includes texture information. The method includes a rendering step that comprises a transformation step allowing for both affine and non-affine two-dimensional image transformations, and comprises transforming the texture information. This uses a filtering step to suppress aliasing artifacts of interior parts of one or more textured primitives in the rendered image. In particular, the method uses the filtering to deliver partial colours at both sides of the edges of such primitive. Eventually, aggregation of the partial colours suppresses artifacts from edge aliasing of the primitive in question.