View Full Version : Creating and saving multiple images in OpenGl

04-12-2004, 12:24 PM
Hi everyone,
I need some help. I have to run a simulation where I have to create and save an image after regular intervals of time sequentially so that I can join those images to make a movie.

glutCreateWindow("XYZ") creates only one window at a time and also cannot be saved.

So can anyone tell me -
1. How to save an OpenGl image.
2. How to create multiple images.

I am really a beginner ..so please bear with me if my questions r very stupid.


04-12-2004, 12:59 PM
Have you tried glReadPixels()?

04-12-2004, 02:10 PM
Thanx for the prompt reply!

But I am sorry I am not very well versed...cud u plz elucidate...i tried to read what
glreadpixels() meant...but i didnt understand

shud it be used with glcreatewindow() or is it an inependent function..and where do i name the different images so that they r in sequence?

04-12-2004, 02:18 PM
Have a look at the fine documentation, particularly the red book (the OpenGL Programming Guide). GlReadPixels is what you use to save a screen buffer into memory so you can then save it to disk.