1. A method of graphics processing in a graphics processing unit (GPU), the method comprising: receiving a first texture having texels of a first primitive data type; receiving a second texture having texels of a second primitive data type, the first and second primitive data types being different from one another; determining, using at least one processor operatively coupled with a memory, an interpolation parameter for a texel of the first data type in the first texture to map to a pixel of an image, the image representing a three-dimensional object; and applying a texel of the second data type in the second texture to the pixel using the interpolation parameter determined for the first texture.