well being a noob myself i'm not quite sure what you're after but to me it seems alot like you are on about uv coordinates.

for example, using a program like maya you have to make sure your uv map is in the range of 0,1 in order for the texture you plonk on to come out correctly. you can then export that map to photoshop or similar to paint on a texture then take the whole thing to gamestudio.

i not completely sure but i dont think it matters about moving the camera in 3dgs at all as it wont affect the uv range, all it will do is make your square appear in the camera view with the texture visible at whatever resolution you have used. the uv range is something directly related to the uv's on the model and not the camera position, but hey i could be wrong...

just trying to help like