Converting 7905 leaf help with ring segments please.

[Peter Grass]

I've started converting over the new 7905 leaf part into something that can go on the tracker.

Is there a better ring segment I can use for the back half of rounded portion of the leaf so it looks better in high res? I don't really get which one to use other than the half rings and you aren't supposed to rotate other ones other than by 90 degrees.

[Chris Böhnke]

Not complete sure if I got it right, but shouldn't a 1-8ring do the trick?
The remaining gap to the leaf would be 7-11 degrees, which typically works fine enough without prims.

EDIT:
Merging the 2-4ring and the two 1-8ring into two 3-8ring would be even better structure wise I think.


  Screenshot 2026-01-03 232054.png (Size: 12.39 KB / Downloads: 35)

[Philippe Hurbain]

Merging the 2-4ring and the two 1-8ring into two 3-8ring would be even better structure wise I think.

3-8 prims is indeed the obvious choice here...

you aren't supposed to rotate other ones

Not needed here, but you can of course do that if there is no other solution! Just keep enough precision (4 or 5 decimal points) in the transformation matrix to avoid too large mismatches.

Other considerations for this part:
- Rotate it 90° to match the orientation of similar leaves, eg. 3565
- Part is symmetrical, make 2 half subparts
- Using 2 rings on top to go from R6 to R10 is fine, but using ndis+chrd+quads avoid the introduction of needless vertices. Here is how I would do it:

Code:

1 16 0 3 0 0 0 2 0 -1 0 2 0 0 3-8ring4.dat
1 16 0 0 0 0 0 10 0 3 0 10 0 0 3-8cylo.dat
1 16 0 0 0 0 0 10 0 1 0 10 0 0 1-8chrd.dat
1 16 0 0 0 10 0 0 0 1 0 0 0 -10 1-8chrd.dat
1 16 0 0 0 10 0 0 0 1 0 0 0 10 1-8chrd.dat
1 16 0 0 0 0 0 6 0 1 0 6 0 0 2-4ndis.dat
4 16 0 0 10 0 0 6 6 0 6 7.071 0 7.071
4 16 7.071 0 7.071 6 0 6 6 0 0 10 0 0
4 16 10 0 0 6 0 0 6 0 -6 7.071 0 -7.071
4 16 6 0 -6 0 0 -6 0 0 -9.561 6.236 0 -7.628
3 16 6 0 -6 6.236 0 -7.628 7.071 0 -7.071

[Peter Grass]

Thanks very much for the help Chris & Philippe that looks a million times better.