tex2Dlod.3Cg

Langue: en

Version: 344243 (ubuntu - 24/10/10)

Section: 3 (Bibliothèques de fonctions)

Sommaire

NAME

tex2Dlod - performs a texture lookup with a specified level of detail in a given sampler.

SYNOPSIS

   float4 tex2Dlod(sampler2D samp, float4 s)
   float4 tex2Dlod(sampler2D samp, float4 s, int texelOff)
 
 
 

   int4 tex2Dlod(isampler2D samp, float4 s)
   int4 tex2Dlod(isampler2D samp, float4 s, int texelOff)
 
 
 

   unsigned int4 tex2Dlod(usampler2D samp, float4 s)
   unsigned int4 tex2Dlod(usampler2D samp, float4 s, int texelOff)

PARAMETERS


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

DESCRIPTION

Performs a texture lookup with a specified level of detail in sampler samp using coordinates s.

PROFILE SUPPORT

tex2Dlod is supported in fragment profiles starting with fp40 and in vertex profiles starting with vp40. Variants with texelOff are only supported in gp4 and newer profiles. Variants with integer samplers are also only suppported in gp4 and newer profiles.

SEE ALSO

tex2Dbias, tex2Dcmplod