[osg-users] Check if sampler2D is valid in fragment shader

[Rômulo Cerqueira]

Hi,

is there a way to check if a texture (as uniform sampler2D) is valid in fragment shader?

This is my current code:


Code:

if (textureSize(myTexture, 0).x > 1) {
// do something with the texture
}
else {
// process without texture information
}



... 

Thank you in advance!

Cheers,
Rômulo

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http://forum.openscenegraph.org/viewtopic.php?p=69772#69772