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fp30.3Cg
Langue: en
Version: 356117 (ubuntu - 24/10/10)
Section: 3 (Bibliothèques de fonctions)
Sommaire
NAME
fp30 - OpenGL fragment profile for NV3x (GeForce FX, Quadro FX, etc.)SYNOPSIS
fp30
DESCRIPTION
This OpenGL profile corresponds to the per-fragment functionality introduced by the GeForce FX and Quadro FX line of NVIDIA GPUs.The compiler output for this profile conforms to the assembly format defined by NV_fragment_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 not supported; use texture accesses instead.
3D API DEPENDENCIES
Requires OpenGL support for the NV_fragment_program extension. These extensions were introduced by the GeForce FX and Quadro FX GPUs.OpenGL Extension Specifications
http://www.opengl.org/registry/specs/NV/fragment_program.txt
PROFILE OPTIONS
- NumInstructionSlots=val
- How many instructions the compiler should assume it can use.
- NumTemps=val
- How many temporaries the compiler should assume it can use.
DATA TYPES
- fixed
- The fixed data type corresponds to a native signed fixed-point integers with the range [-2.0,+2.0), sometimes called fx12. This type provides 10 fractional bits of precision.
- half
- The half data type corresponds to a floating-point encoding with a sign bit, 10 mantissa bits, and 5 exponent bits (biased by 16), sometimes called s10e5.
- float
- The float data type corresponds to a standard IEEE 754 single-precision floating-point encoding with a sign bit, 23 mantissa bits, and 8 exponent bits (biased by 128), sometimes called s10e5.
SEMANTICS
VARYING INPUT SEMANTICS
The varying input semantics in the fp30 profile correspond to the respectively named varying output semantics of the vp30 profile.
Binding Semantics Name Corresponding Data
COLOR Input primary color COLOR0 COL COL0
COLOR1 Input secondary color COL1
TEX0 Input texture coordinate sets 0 TEXCOORD0
TEX1 Input texture coordinate sets 1 TEXCOORD1
TEX2 Input texture coordinate sets 2 TEXCOORD2
TEX3 Input texture coordinate sets 3 TEXCOORD3
TEX4 Input texture coordinate sets 4 TEXCOORD4
TEX5 Input texture coordinate sets 5 TEXCOORD5
TEX6 Input texture coordinate sets 6 TEXCOORD6
TEX7 Input texture coordinate sets 7 TEXCOORD7
FOGP Input fog color (XYZ) and factor (W) FOG
UNIFORM INPUT SEMANTICS
Sixteen texture units are supported:
Binding Semantic Name Corresponding Data
TEXUNIT0 Texture unit 0 TEXUNIT1 Texture unit 1 ... TEXUNIT15 Texture unit 15
OUTPUT SEMANTICS
COLOR Output color (float4) COLOR0 COL0 COL
DEPTH Output depth (float) DEPR
STANDARD LIBRARY ISSUES
Functions that compute partial derivatives are supported.SEE ALSO
vp30Contenus ©2006-2024 Benjamin Poulain
Design ©2006-2024 Maxime Vantorre