vp20
Keywords: vp20, NVIDIA, NVIDIA Cg Toolkit, Cg Toolkit, Shader, Shader Programming, GPU Shader Programming, GPU Program

> ## Name

> vp20 - OpenGL fragment profile for NV2x (GeForce3, GeForce4 Ti, Quadro DCC, etc.)

> ## Synopsis

>       vp20

> ## Description

> This OpenGL profile corresponds to the per-vertex functionality introduced by GeForce3.

> The compiler output for this profile conforms to the assembly format defined by NV_vertex_program1_1 (which assumes NV_vertex_program).

> Data-dependent loops are not allowed; all loops must be unrollable.

> Conditional expressions are supported without branching so both conditions must be evaluated.

> Relative indexing of uniform arrays is supported; but texture accesses are not supported.

> ## 3D Api Dependencies

> Requires OpenGL support for NV_vertex_program and NV_vertex_program1_1 extensions. These extensions were introduced by GeForce3 and Quadro DCC GPUs.

> ## Opengl Extension Specifications

>      http://www.opengl.org/registry/specs/NV/vertex_program.txt

>      http://www.opengl.org/registry/specs/NV/vertex_program1_1.txt

> ## Profile Options

> PosInv=val
>   Non-zero means generates code for position-invariant (with fixed-function) position transformation.
> MaxLocalParams=val
>   Maximum number of local parameters the implementation supports.

> ## Data Types

> to-be-written

> ## Semantics

> ## Varying Input Semantics

> to-be-written

> ## Uniform Input Semantics

> to-be-written

> ## Output Semantics

> to-be-written

> ## Standard Library Issues

> to-be-written

> ## See Also

> fp20