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

[Rômulo Cerqueira]

Hi Sebastian,


> 
> There is no direct way. If you need shaders with and without texturing 
> you should bind different programs to the affected geometries. 
> 


I think my problem is a little bit different. I will receive the final scene with or without textures and process it properly. I won't participate in the scene development.

... 

Thank you!

Cheers,
Rômulo

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