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<BLOCKQUOTE>
<H1><A NAME="NAME"><A NAME="1">NAME
</A></A></H1>
<P>
<B>tex2DARRAY</B> - performs a texture lookup in a given sampler array may use pre computed
derivatives and, in some cases, perform a shadow comparison.
</P>
<H1><A NAME="SYNOPSIS"><A NAME="2">SYNOPSIS
</A></A></H1>
<PRE> float4 tex2DARRAY(sampler2DARRAY samp, float3 s)
float4 tex2DARRAY(sampler2DARRAY samp, float3 s, int texelOff)
float4 tex2DARRAY(sampler2DARRAY samp, float4 s)
float4 tex2DARRAY(sampler2DARRAY samp, float4 s, int texelOff)
float4 tex2DARRAY(sampler2DARRAY samp, float3 s, float dx, float dy)
float4 tex2DARRAY(sampler2DARRAY samp, float3 s, float dx, float dy,
int texelOff)
float4 tex2DARRAY(sampler2DARRAY samp, float4 s, float dx, float dy)
float4 tex2DARRAY(sampler2DARRAY samp, float4 s, float dx, float dy,
int texelOff)
int4 tex2DARRAY(isampler2DARRAY samp, float3 s)
int4 tex2DARRAY(isampler2DARRAY samp, float3 s, int texelOff)
int4 tex2DARRAY(isampler2DARRAY samp, float3 s, float dx, float dy)
int4 tex2DARRAY(isampler2DARRAY samp, float3 s, float dx, float dy,
int texelOff)
unsigned int4 tex2DARRAY(usampler2DARRAY samp, float3 s)
unsigned int4 tex2DARRAY(usampler2DARRAY samp, float3 s, int texelOff)
unsigned int4 tex2DARRAY(usampler2DARRAY samp, float3 s, float dx, float dy)
unsigned int4 tex2DARRAY(usampler2DARRAY samp, float3 s, float dx, float dy,
int texelOff)
</PRE>
<H1><A NAME="PARAMETERS"><A NAME="3">PARAMETERS
</A></A></H1>
<DL>
<DT><STRONG>samp
</STRONG></DT>
<DD>
<P>
Sampler array to look up.
</P>
<DT><STRONG>s
</STRONG></DT>
<DD>
<P>
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.
</P>
<DT><STRONG>dx
</STRONG></DT>
<DD>
<P>
Pre computed derivative along the x axis.
</P>
<DT><STRONG>dy
</STRONG></DT>
<DD>
<P>
Pre computed derivative along the y axis.
</P>
<DT><STRONG>texelOff
</STRONG></DT>
<DD>
<P>
Offset to be added to obtain the final texel.
</P>
</DD></DL>
<H1><A NAME="DESCRIPTION"><A NAME="4">DESCRIPTION
</A></A></H1>
<P>
Performs a texture lookup in sampler <I>samp</I> using coordinates <I>s</I>, the texture to be sampled is
selected from the layer specified in the coordinates. Also may use the derivatives <I>dx</I> and
<I>dy</I>, the lookup may involve a shadow comparison and use texel offset <I>texelOff</I> to compute
the final texel.
</P>
<H1><A NAME="PROFILE_SUPPORT"><A NAME="5">PROFILE SUPPORT
</A></A></H1>
<P>
<B>tex2DARRAY</B> is only supported in <A HREF="gp4.html">gp4</A> and newer profiles.
</P>
<H1><A NAME="SEE_ALSO"><A NAME="6">SEE ALSO
</A></A></H1>
<P>
<A HREF="tex2DARRAYbias.html"><I>tex2DARRAYbias</I></A>, <A HREF="tex2DARRAYlod.html"><I>tex2DARRAYlod</I></A>
</P>
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