ps_1_3 - Direct3D Shader Model 1.3 fragment profile for DirectX 8
This Direct3D profile corresponds to the per-fragment functionality
introduced by GeForce 3 (NV2x) for DirectX 8.
The compiler output for this profile conforms to the textual assembly
defined by DirectX 8's Pixel Shader 1.3 shader format. See:
3D Api Dependencies
Requires Direct3D 8 or 9 support.
Uniform Input Semantics
Standard Library Issues
Functions that compute partial derivatives are not supported.