opengl. Multiple cameras

Question

OpenGL

Hey HaboPipple!

There was a question:
Is it possible to create more than one camera ...

gluLookAt(...);

by displaying the image from them in different viewports...

glViewport(...);

using projection...

glFrustum(...);

?
I would appreciate an answer or a link to an example.

Answer 1

You can render to a texture, and then show different textures with different images in different parts of the screen.