Here is how I created the high resolution, perspective correct, Portals in my
game demo I posted in showcase I, This is very bare bones and only demonstrates
how to create a couple of nice wall portals and teleport between them. I am
sendind a more complete demo to the resource site.

This uses render to texture (or sylex), and requires a card with PS 2.0 min.
Get It Here.

It is free to use for any purpose without any credit.
Have Fun.


Not two, not one.