Hi Max,

I'm not sure, but when you run your program, can't you see a line like :
"Scaling image '../Data_Calibrage/Image/IMG_5316_small.jpg' from <640,480> to <512,512>" ?

Otherwise, to do projective texture mapping, personaly I'm using shaders since I have back projection problems with OpenGl texture mapping.

For OpenGl texture mapping, you can look in the osgspotlight exemple.

Hope that helps,
Josselin.

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