I am new to OpenGL, so I hope my question is easy to answer.
I searched a lot on the web, but couldn’t find a solution to my problem. I have created some simple 3D objects. Now I want to test some antialiasing algorithms outside of openGL. Therefore i saved the actual view to the hard disk(which was no problem). Now i want to generate a oversampled image of it in OpenGL and store it to the hard disk. It has not to be shown on the screen, it just has to be calculated by openGL and stored to the disk. But i was not able to find a method or algorithm which generates a oversampled image.
So it would be nice if someone can help me. Thanks.
I have stored a scene with 128x128 pixels. Now i want to store the same scene with a size of 512x512 pixels. Then i can downsample the image with another program to see the antialiasing effect compared to the original image of 128x128 pixels. I really want to do the downsampling with another program (written by myself) to see if it works.