Best practice when making teleporters with real time portals?

Development Rendering
1

I am working on a Quake style FPS template. One of the things I would like to do in relation to the teleporters is make it so you can look at a portal and see what is on the other side.

I can get one camera to work. But things get super messy once I try to do more than one. On average you might see 4-5 teleporters in a Quake style level. A common problem I see is the portals are black or sometimes choose to render on the wrong faces.

So what would be the most elegant way to do this kind of thing?

2

I’d take a scenecapture2D at the center of the portal. If you have 2 portals linked, have the scenecapture2D of the other side look the same way as the player is looking. Though this could be pretty expensive.

3

Would you mind posting a screenshot of how you have your portals set up? I’d be curious to see!

4

I did not set them up as I think they’re expensive and unnecessary for what I try to do.

5

The way I ended up doing the portals involves a few basic steps with making a material and a camera and placing the material on a brush surface. It ends up being real time and has very little performance impact too.