I’m new to openGL,I wonder whether the job as below openGL can do,if yes,and how to:
in a scene rendered by openGL,if I can put a camera(I don’t know if there is a concept also called camera in openGL?I just consider it a kind of camera in real life) in the scene,and get image from it,then process the image by any other program.
Yes of course, render your scene, glReadPixels the result (like a screenshot), and use whatever image i/o library to create a file with this raw pixel data.
sorry.I mean any good tutorial or book.I read the super bible recently,and search the book,find no gluPerspective related subject.any way,thanks,google should be the first way:)