I’m evaluating Unity to implement a game I’ve prototyped directly in Cocoa/OpenGL. Because of the nature of the game’s data, I really need the render to texture functionality provided by Unity Pro (but I can live without pixel shaders as required).
My question is: are there any platforms which do not support render to texture? I presume that on Mac, the function relies on GL_APPLE_pixel_buffer, which was introduced in 10.3. This is good, because I only care about 10.3.9 and 10.4.x on Mac (and XP SP1 and later on Windows).
So, are there any known exceptions to the availability of this feature?