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Tutorial Request: Vegetation

 
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Vijchti
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Joined: 16 Aug 2006
Posts: 250

PostPosted: Wed Jan 10, 2007 9:31 am    Post subject: Tutorial Request: Vegetation Reply with quote

Plants, bushes, grass, trees...I can't create any of 'em. I'm just looking for simple builds with the fewest possible polygons (and perhaps tips on how to make them more realistic with more polygons, if you want).

Thanks.
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Daaark
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Joined: 01 Sep 2004
Posts: 2696
Location: Ottawa, Canada

PostPosted: Wed Jan 10, 2007 6:05 pm    Post subject: Re: Tutorial Request: Vegetation Reply with quote

Vijchti wrote:
Plants, bushes, grass, trees...I can't create any of 'em. I'm just looking for simple builds with the fewest possible polygons (and perhaps tips on how to make them more realistic with more polygons, if you want).

Thanks.
That requires use of proper alpha mapped textures. Confused Tree trunks are very hard to do, especially with branches. A lot of pros have actually been turning to products like SpeedTree to handle this.

Low poly vegatation comes down to the texturing. It's like 95% texture and 5% geometry in that case.
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mappy
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Joined: 18 Aug 2005
Posts: 340
Location: France

PostPosted: Wed Jan 10, 2007 6:43 pm    Post subject: Reply with quote

VD is right.

Just in case Vijchti,
you may want to download and have a look at this free low-poly tree demo from got3d :

http://www.got3d.com/free/Got3d-Low-Polygon-Tree-Demo.zip

(use the TGA texture BTW)
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Vijchti
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Joined: 16 Aug 2006
Posts: 250

PostPosted: Wed Jan 10, 2007 11:06 pm    Post subject: Reply with quote

Thanks guys. I figured it was something along the lines of mostly texture...but then I hate texturing things so I hoped it wasn't.

And thanks for the demo, I'll check it out.
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madcowthomas
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Joined: 11 Oct 2006
Posts: 69
Location: Seattle

PostPosted: Thu Jan 11, 2007 12:54 am    Post subject: Reply with quote

TreeMagik G3
Blitzgrass 3D
Plant Life
Blitztree 3D


http://www.aliencodec.com/

Give them a shot and see if you like there results. Went thru a list of companys that had software to create trees and planets and they seem reasonable on there prices. And after trying there product TreeMagik was very happy.
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Willakan
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Joined: 10 Jul 2007
Posts: 22
Location: Britain

PostPosted: Sun Jul 15, 2007 1:19 pm    Post subject: Reply with quote

Yes, I have the tree magic demo and it makes pretty decent trees. Very Happy
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jwatte
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Joined: 26 Apr 2006
Posts: 513

PostPosted: Mon Jul 16, 2007 7:16 am    Post subject: Reply with quote

A cruciform with enhancedtrunk will take about 8 triangles, of which 4 are double-sided, so 12 triangles total if you split them properly.

Make it 14, if you want to seal the bottom, too.

Paste a texture of a trunk on the enhanced trunk, and a picture of a tree (with alpha blending) on the cruciform, and you're done!

This is the ultimate in low poly, if that's your goal. However, with modern cards, a tree of 200 polygons probably won't be any different in performance (as batching overhead will dominate). If you instantiate a bunch into a single draw buffer, I'd aim at perhaps 75 polys per tree.

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Grandmaster B
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Joined: 03 Jul 2007
Posts: 218

PostPosted: Mon Jul 16, 2007 10:07 am    Post subject: Reply with quote

Loopix has very nice free low-poly trees, shrubs, weeds, grass. Take a look and see how are these made: http://www.loopix-project.com/
Click "Models" then "Freebies" at the top right.
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