On Thu, Jan 16, 2003 at 10:16:28PM -0500, Jack Madison wrote: > Oooohhh, screenshots. I love screenshots. :) > > Looks like Sean is pretty much doing the same thing at the same pace I > am. :) I just have the camera following the landscape using arrows > keys, and am considering whether my next step will be animated models or > trees/bushes. Any hints on either would be great. For the animation, > I'm not even sure where to start. Remember, I'm a newbie when it comes > to 3d!
When I've seen trees and bushes in the past, they've generally either just been a single quad with an alpha-mapped texture that's always facing the camera, or a pair of intersecting quads. I don't know if OpenGL gives you a way to have a polygon always facing the camera, but that would make the single-quad approach pretty simple. For collision detection, you could just use a distance from the central point of the tree and assume that the person could duck under the branches as long as they're not trying to walk through the trunk. For larger trees or forests, you might want to use a real model at least for the trunk of the tree and some major branches, and textures for the rest. I've also seen cone-shaped tree models in some games. I wouldn't get too sophisticated to start off with, though. I've seen too many projects get bogged down in little details. Whichever problem you decide to solve first, I guess I'll solve the other problem. Since we both seem to be working in the same direction, perhaps it would be a good time to put this in CVS somewhere and work on a common code base? I tend to prefer savannah.gnu.org, but sourceforge is fine, or whatever. I have accounts on both Savannah and SourceForge. -- Sean Lynch http://sean.lynch.tv/
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