arbfp1.3Cg

Langue: en

Version: 358316 (ubuntu - 24/10/10)

Section: 3 (Bibliothèques de fonctions)

NAME

arbfp1 - OpenGL fragment profile for multi-vendor ARB_fragment_program extension

SYNOPSIS

   arbfp1
 
 
 

DESCRIPTION

This OpenGL profile corresponds to the per-fragment functionality introduced by GeForce FX and other DirectX 9 GPUs. This profile is supported by any OpenGL implementation that conformantly implements ARB_fragment_program.

The compiler output for this profile conforms to the assembly format defined by ARB_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 multi-vendor ARB_fragment_program extension. This extension is supported by GeForce FX and later GPUS. ATI GPUs also support this extension.

OpenGL Extension Specifications

  http://www.opengl.org/registry/specs/ARB/fragment_program.txt
 
 
 

PROFILE OPTIONS


NumTemps=n
Number of temporaries to use (from 12 to 32).
MaxInstructionSlots=n
Maximum allowable (static) instructions. Not an issue for NVIDIA GPUs.
NoDependentReadLimit=b
Boolean for whether a read limit exists.
NumTexInstructions=n
Maximum number of texture instructions to generate. Not an issue for NVIDIA GPUs, but important for ATI GPUs (set it to 32).
NumMathInstructions=n
Maximum number of math instructions to generate. Not an issue for NVIDIA GPUs, but important for ATI GPUs (set it to 64).
MaxTexIndirections=n
Maximum number of texture indirections. Not an issue for NVIDIA GPUs, but important for ATI GPUs (set it to 4).
ATI_draw_buffers
When multiple draw buffers are used, use the ATI_draw_buffers syntax so the generated code says "OPTION ATI_draw_buffers". The default, if this option is not specified, is to use ARB_draw_buffers.
ARB_draw_buffers
When multiple draw buffers are used, use the ARB_draw_buffers syntax so the generated code says "OPTION ARB_draw_buffers". This option is the default.
MaxDrawBuffers=n
Maximum draw buffers for use with ARB_draw_buffers. Set to 1 for NV3x GPUs. Use up to 4 for NV4x or ATI GPUs.
MaxLocalParams=n
Maximum allowable local parameters.

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

arbvp1