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

[Rômulo Cerqueira]

Hi Christian,


> You could traverse the scene graph and check the state sets to see if they bind a texture to a texture unit. 
> 
> Then depending on these findings, choose the correct shader code. 


I appreciated it. Can you give me some example?
... 

Thank you!

Cheers,
Rômulo

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