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.rm #[ #] #H #V #F C
.IX Title "tex1DARRAY Cg"
.TH tex1DARRAY Cg "" "Cg Toolkit 2.2" "Cg Standard Library"
.UC
.SH "NAME"
\&\fBtex1DARRAY\fR \- performs a texture lookup in a given sampler array may use pre computed
derivatives and, in some cases, perform a shadow comparison.
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
.Vb 4
\&  float4 tex1DARRAY(sampler1DARRAY samp, float2 s)
\&  float4 tex1DARRAY(sampler1DARRAY samp, float2 s, int texelOff)
\&  float4 tex1DARRAY(sampler1DARRAY samp, float3 s)
\&  float4 tex1DARRAY(sampler1DARRAY samp, float3 s, int texelOff)
.Ve
.Vb 6
\&  float4 tex1DARRAY(sampler1DARRAY samp, float2 s, float dx, float dy)
\&  float4 tex1DARRAY(sampler1DARRAY samp, float2 s, float dx, float dy,
\&                    int texelOff)
\&  float4 tex1DARRAY(sampler1DARRAY samp, float3 s, float dx, float dy)
\&  float4 tex1DARRAY(sampler1DARRAY samp, float3 s, float dx, float dy,
\&                    int texelOff)
.Ve
.Vb 2
\&  int4 tex1DARRAY(isampler1DARRAY samp, float2 s)
\&  int4 tex1DARRAY(isampler1DARRAY samp, float2 s, int texelOff)
.Ve
.Vb 3
\&  int4 tex1DARRAY(isampler1DARRAY samp, float2 s, float dx, float dy)
\&  int4 tex1DARRAY(isampler1DARRAY samp, float2 s, float dx, float dy,
\&                  int texelOff)
.Ve
.Vb 2
\&  unsigned int4 tex1DARRAY(usampler1DARRAY samp, float2 s)
\&  unsigned int4 tex1DARRAY(usampler1DARRAY samp, float2 s, int texelOff)
.Ve
.Vb 3
\&  unsigned int4 tex1DARRAY(usampler1DARRAY samp, float2 s, float dx, float dy)
\&  unsigned int4 tex1DARRAY(usampler1DARRAY samp, float2 s, float dx, float dy,
\&                           int texelOff)
.Ve
.SH "PARAMETERS"
.IX Header "PARAMETERS"
.Ip "samp" 8
.IX Item "samp"
Sampler array to look up.
.Ip "s" 8
.IX Item "s"
Coordinates to perform the lookup. The value used to select the layer is passed immediatelly after
the regular coordinates, if an extra coordinate is present it is used to perform a shadow 
comparison. 
.Ip "dx" 8
.IX Item "dx"
Pre computed derivative along the x axis.
.Ip "dy" 8
.IX Item "dy"
Pre computed derivative along the y axis.
.Ip "texelOff" 8
.IX Item "texelOff"
Offset to be added to obtain the final texel.
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
Performs a texture lookup in sampler \fIsamp\fR using coordinates \fIs\fR, the texture to be sampled is
selected from the layer specified in the coordinates. Also may use the derivatives \fIdx\fR and 
\&\fIdy\fR, the lookup may involve a shadow comparison and use texel offset \fItexelOff\fR to compute 
the final texel.
.SH "PROFILE SUPPORT"
.IX Header "PROFILE SUPPORT"
\&\fBtex1DARRAY\fR is only supported in gp4 and newer profiles.
.SH "SEE ALSO"
.IX Header "SEE ALSO"
tex1DARRAYbias, tex1DARRAYlod
