High precision texture wrapping method and device

A device for generating texture coordinates for a selected pixel within a triangle for a texture wrapping operation, the triangle having a plurality of vertices, the selected pixel being defined within the triangle by a plurality of barycentric coordinates, the device comprising:

• vertex buffer circuitry adapted to receive a set of texture coordinates for each of the vertices of the triangle, the vertex buffer circuitry being configured to determine a plurality of barycentric coefficients for the selected pixel from the texture coordinates of the vertices of the triangle, the barycentric coefficients being optimized to obtain a specified degree of precision, the specified degree of precision being adapted to distinguish between neighboring texture coordinates;
• and
• a barycentric evaluator coupled to receive the barycentric coefficients from the vertex buffer circuitry, the barycentric evaluator receiving a plurality of barycentric coordinates associated with the selected pixel, and the barycentric evaluator being configured to compute the texture coordinates based on the barycentric coefficients and the barycentric coordinates, wherein the texture coordinates are substantially distinct from neighboring texture coordinates.