I'd like to use a texture to store some non-visual data within a scene.
Firstly, is it possible to apply a texture to a polygon but make it invisible?
Secondly, is it possible to read the invisible texture data back from the GPU once it's been uploaded?
I realise that what I'm trying to do can be done by creating a separate data structure within the app. and using that, however I thought using textures might be more efficient. Just wondering if it's possible.