Programmable Multitexturing
- Programmable multitexturing blend unit:
- Texture shader
- May be ``unrolled'' to other implementations
- Texture shader parameters
- Map texture coordinates to texture lookups
- Pass through selected texture coordinates
- Pass through interpolated irradiance
- Texture shader computation specified with stack program
- Stack contains 4-vectors
- Stack manipulation operations.
- Compositing operations.
- Assembly and dissassembly.
- Depth type and comparisons.