DeleD Community Edition

granada · Posted: Tue Nov 23, 2004 6:58 am Post subject: Round window

Here you go

First make your opening and place a cylinder inside

Then hollow the cylinder

Then delete both ends

Then select the vertices and move them to fill the void in the outside of the cylinder

Then delete any unwanted polys

And there you go a round window

This way takes a little longer than CSG carving but its a cleaner way to do it,lot less polys.
You can allways save the wall as a prefab and use it again later.

Hope this helps Very Happy

dave
_________________
AMD Phenom(tm)IIx6 1090t Processor 3.20 GHS
8.00 GB memory
Windows 7 64 bit
Nvida Geforce GTX 580

Jeroen · Posted: Tue Nov 23, 2004 8:04 am Post subject:

Dave, you are brilliant! Even though I've developed the routines you used, I didn't even think of this way to use them. Excellent stuff. Very Happy

Indeed, CSG will ease this operation but will most likely result in a lot more polygons. Dave's method is more suitable for a game-environment because it has less polygons. Smile

Daaark · Posted: Tue Nov 23, 2004 12:38 pm Post subject:

TheKurgan · Member Joined: 11 Nov 2004 Posts: 28

Thank you so much. That will be EXTREMELY helpful.

You guys are great. I really appreciate this community.

TheKurgan

Jeroen · Posted: Tue Nov 23, 2004 2:46 pm Post subject:

No problem, TheKurgan, just spread the word. Wink

Edwin · Posted: Tue Nov 23, 2004 4:38 pm Post subject:

I just tried subtracting a cylinder with 18 sides from a cube with my own CSG routines, it had 70 polygons. How many polygons did you get Dave?

Paul-Jan · Posted: Tue Nov 23, 2004 6:59 pm Post subject:

I'm guessin dave could get down to 18*3 for the cylinder-inset, plus 4 for both the front and back of the cube, plus 4 for the sides of the cube. Which makes a total of 66. In theory, you could get rid of the inset and have the front and backfacing polygons of the 'cylinder' extend all the way to form the cube, going down to a total of 58. I don't think you can get much lower than that with convex polygons.

granada · Posted: Tue Nov 23, 2004 7:33 pm Post subject:

dirkk · Member Joined: 09 Aug 2004 Posts: 238 Location: Germany

did I say friggin' genius?

Jeroen · Posted: Thu May 12, 2005 4:27 pm Post subject:

A cube carved with a 18-sided cylinder resulted in 71 polygons. After applying some basic optimizations, I got 58 polygons.

This still needs more testing though but I think it looks nice... And Paul-Jan, your assumption was correct. Wink

granada · Posted: Thu May 12, 2005 5:48 pm Post subject:

You win

66 polys

70 polys (i like this one)

dave
_________________
AMD Phenom(tm)IIx6 1090t Processor 3.20 GHS
8.00 GB memory
Windows 7 64 bit
Nvida Geforce GTX 580

hpesoj · DeleD PRO user Joined: 16 Oct 2004 Posts: 184

But the question is, how many polygons when triangulated? That's what really matters in a game environment Wink

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Jeroen · Posted: Mon May 23, 2005 10:50 am Post subject: