tex2Dfetch.3Cg

Langue: en

Version: 361273 (ubuntu - 24/10/10)

Section: 3 (Bibliothèques de fonctions)

Sommaire

NAME

tex2Dfetch - performs an unfiltered texture lookup in a given sampler.

SYNOPSIS

   float4 tex2Dfetch(sampler2D samp, int4 s)
   float4 tex2Dfetch(sampler2D samp, int4 s, int texelOff)
 
 
 

   int4 tex2Dfetch(isampler2D samp, int4 s)
   int4 tex2Dfetch(isampler2D samp, int4 s, int texelOff)
 
 
 

   unsigned int4 tex2Dfetch(usampler2D samp, int4 s)
   unsigned int4 tex2Dfetch(usampler2D samp, int4 s, int texelOff)

PARAMETERS


samp
Sampler to lookup.
s
Coordinates to perform the lookup. The level of detail is stored in the last component of the coordinate vector.
texelOff
Offset to be added to obtain the final texel.

DESCRIPTION

Performs an unfiltered texture lookup in sampler samp using coordinates s. The level of detail is provided by the last component of the coordinate vector. May use texel offset texelOff to compute final texel.

PROFILE SUPPORT

tex2Dfetch is only supported in gp4 and newer profiles.

SEE ALSO

tex2D, tex2DARRAYfetch