NAME
    vp40 - OpenGL vertex profile for NV4x (GeForce 6xxx and 7xxx Series,
    NV4x-based Quadro FX, etc.)

SYNOPSIS
      vp40

DESCRIPTION
    This OpenGL profile corresponds to the per-vertex functionality
    introduced by the GeForce 6800 and other NV4x-based NVIDIA GPUs.

    The compiler output for this profile conforms to the assembly format
    defined by NV_vertex_program3 and ARB_vertex_program.

    Data-dependent loops and branching *are* allowed.

    Relative indexing of uniform arrays *is* supported.

    Texture accesses are supported. However substantial limitations on
    vertex texturing exist for hardware acceleration by NV4x hardware.

    NV4x hardware accelerates vertex fetches only for 1-, 3-, and
    4-component floating-point textures. NV4x hardware does not accelerated
    vertex-texturing for cube maps or 3D textures. NV4x does allow
    non-power-of-two sizes (width and height).

3D API DEPENDENCIES
    Requires OpenGL support for the NV_fragment_program3 extension. These
    extensions were introduced by the GeForce 6800 and other NV4x-based
    GPUs.

PROFILE OPTIONS
    None.

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*

