Molly Rocket :: View topic - Barrett Enumeration

Molly Rocket
Molly Rocket games and everything even tangentially related

FAQ

Usergroups

Barrett Enumeration
Goto page Previous 1, 2

Molly Rocket Forum Index -> Project Notes

View previous topic :: View next topic

Author

Message

Won

Joined: 21 Sep 2005
Posts: 507
Location: New York

Posted: Sat May 17, 2008 8:37 pm Post subject:

sean wrote:

Lat/long sphering is pretty much the only sane way to render a sphere. Unless rendering a sphere well is the be-all end-all of your app, the complexity of e.g. a tesselated dodecahedron isn't worth it. Plus those aren't as continuously scalable.

Well, it only has to be important once, and then you can reuse it, right? I don't know where my tesselated icosahedron code is anymore, but I don't think it would take long to recreate, since all you really need to remember is the golden ratio. If you start off with an icosahedron, you can just tesselate each triangular face however you want. As long as you're not doing a recursive subdivision, you have plenty of scalability. Now if you start off with something that is lat/long parameterized, then the lat/long approach is obviously much simpler. Still, it bothers me, and it isn't really rational at all. It probably comes from my first OpenGL-related job as an intern at a dot-com that tried to reinvent the web as planets.

Won

Joined: 21 Sep 2005
Posts: 507
Location: New York

	Posted: Wed Oct 28, 2009 7:27 pm Post subject:

http://www.realtimerendering.com/blog/looping-through-polygon-edges/

Display posts from previous:

	Molly Rocket Forum Index -> Project Notes	All times are GMT Goto page Previous 1, 2
Page 2 of 2

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum