Quote:Original post by fuchi
Add:
YOu said that what i did wrong was layed out all the vertices in horizontal strips, so none of them would show up. I thought that when you use indicies, you can place the vertices in any order, and use the indices to form your triangles. Is this not true?

Yeah, sorry man, thought you were using indexes as labels in that ascii diagram.


Original post by fuchi
I said:
For example you'd need to generate a triangle with no area using verts 6, 7 & 8. You'd have further problems still if 6, 7, 8 were not inline (i.e. most 3D situations), and you'd have an extra unwanted tri being rendered as mentioned above, in which case you'd need... more degenerate triangles... messy.
End me.

Wouldn't you be able to solve hte problem by doing something like generating TWO triangles with no area, i.e. [6,6,7] and [7,8,8] or something like that? I read somewhere that yeah you overcome the degenerate triangles problem by doubling the vertices at the end of the strip.


Not checking that, but yeah, that's the kind of thing youd need to do, it's just an extra consideration (and something else to go worng, but i'm just lazy) if you're generating your terrain in a for loop.

Regarding the tri-strip/tri-list thing:
It appears to depend on what and how you're doing stuffs. I had a quick google on the topic, and i found this and a thread on this site too, both interesting discussions on the topic, check it out.

Good work on solving your problem though :o)

Cheers,
Add

Edit: Another discussion on the ogre3d forums on the topic. (This mentions tri-strips for older hardware) http://www.ogre3d.org/phpBB2/viewtopic.php?p=64554