Fisheye lens?

[prasoc]

When I change the render cam to 180 degree FOV, it just makes a small blob in the center with the sky. I am trying to make a skydome for a game, thus I need the whole sky in the render. Why does it glitch up when it goes to 180? Also, if that can be fixed, is there a tutorial for making a night sky with the moon, stars etc?

[TheBlackHole]

For a night sky, you don't really need a tutorial. You just need a tgc!
http://forums.planetside.co.uk/index.php?topic=4766.0

[neuspadrin]

Animals Close-Up With a Wide-Angle Lens?   Lol, i love that south park episode every time i see wide angled or fisheye stuff it reminds me of it.

anyways.

Theres a few discussions around here for making a skydome/skybox and how to take multiple renders and stitch them together.  You could prob do a search and find a few.

[prasoc]

Thanks for the help But why doesn't the 180 degree FOV work anyway?

[Oshyan]

180FOV should work correctly, it just may not be what you are expecting. This isn't really the correct way to make a skybox or skydome. Since TG2 doesn't currently have a specific function for this, you need to render multiple views with adjacent perspectives, then stitch them and reproject them in a 3rd party program like Panotools.

If you do a search on the forums for some of these terms you should find lots of discussion and advice on doing this.

- Oshyan

[prasoc]

I used the method to make a skydome posted earlier in the thread, but the "up" image is a different colour than to the rest of them? Any ideas why?

[Oshyan]

That is probably due to differences in Global Illumination calculations, another subject that has been discussed quite a lot. The best/quickest solution is simply to not use GI (use fill lights instead - a sample clip file for this can be found in the File Sharing area), however this will obviously change the look of your scene. In this case it looks like a decent stitching program ought to be able to correct it. If not, you can also try higher values of GI Sample Quality and GI Blur Radius (50 or greater).

- Oshyan