array of texture reference doesnt work within global functions

[Ahmed_Tarek]

Hi all, I need a fast response on this,

I’m trying to create an array of texture references, something like this

[codebox]texture<int, 2, cudaReadModeElementType> texTex;[/codebox]

The code works fine within the cpu functions, while when I attempt to texture fetch from a global function like this for example

[codebox]

global …

{

…

int g = tex2D(texTex[C], x, y);

…

}

[/codebox]

the compiler gives an error “identifier “texTex” is undefined”

I need urgent help cause I’m short on time.

Thanks

[Simon_Green]

Not supported, see the FAQ:

http://forums.nvidia.com/index.php?showtopic=84440

Can I index into an array of textures?

No. Current hardware can’t index into an array of texture references (samplers). If all your textures are the same size, an alternative might be to load them into the slices of a 3D texture. You can also use a switch statement to select between different texture lookups.

Actually, Fermi hardware is capable of indexing textures, so it’s possible this might be supported in a future release.