Patent ID: 6700584
Filing Date: 2004-03-02
Classification: G06T

Abstract:
An image processing method for rendering a two dimensional pixel image from a plurality of triangular image primitives to be projected onto an image plane, in which per-pixel attribute values, derived by interpolation from values held for the triangle vertices, are mapped onto respective pixels within the projected triangular primitives, in which, for each triangle:prior to projection, the triangle is parameterised with a respective two-dimensional co-ordinate system with the co-ordinate axes (s,t) concurrent with respective edges of the triangle and an origin coincident with the vertex between said edges; during projection, a generalised interpolation function is applied in terms of the parameterising co-ordinate system, determining parameter values at positions within the triangle in terms of the two-dimensional co-ordinate system; following projection, the determined parameter values at positions within the triangle determine contributions from stored values for one or more attributes at each vertex, to give attribute values at each pixel; characterised in that said parameter values at positions within the triangle are translucency values.