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Topic: furrowed grass (Read 4206 times)
pixelplume
Newbie
Posts: 13
furrowed grass
«
on:
December 11, 2011, 09:45:25 PM »
I'm working on an aerial perspective of a large area. I just started to get large amounts of grass to work by using proxies. Any tips on producing grass that looks like old farm fields with furrowed rows. If you look in the upper left hand corner of the attached image you will see what I mean. A test render is below as well. Thanks in advance.
Sean
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iToo
Administrator
Hero Member
Posts: 4402
Re: furrowed grass
«
Reply #1 on:
December 12, 2011, 10:53:46 AM »
You would use a scale map, painting on it the furrowed rows to create different heights. Also, it may be combined with rotate and tint maps.
If that helps, in the following post you can find some tricks to use tint maps with Forest Color:
http://www.itoosoft.com/forum/index.php?topic=985.msg3356#msg3356
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Carlos Quintero
iToo Software
pixelplume
Newbie
Posts: 13
Re: furrowed grass
«
Reply #2 on:
December 12, 2011, 03:15:13 PM »
looking into it now.....Thanks for your quick reply
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pixelplume
Newbie
Posts: 13
Re: furrowed grass
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Reply #3 on:
December 12, 2011, 04:27:17 PM »
It seems that scale maps only work on surfaces not splines.....correct?
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iToo
Administrator
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Posts: 4402
Re: furrowed grass
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Reply #4 on:
December 12, 2011, 04:52:35 PM »
Yes. All Forest maps requires a surface to get the UV coordinates, although this does not exclude of using also a spline to limit the scattering area.
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Carlos Quintero
iToo Software
QM3423
Newbie
Posts: 35
Re: furrowed grass
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Reply #5 on:
December 12, 2011, 05:54:11 PM »
What about using splines as an 'exclude' for those strips and then use those some splines to scatter a lighter tinted grass?
Or maybe don't exclude anything but overlay the lighter color grass on top of your main grass?
Let me know homey!
Sean #2
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George
Full Member
Posts: 122
Re: furrowed grass
«
Reply #6 on:
December 20, 2011, 03:39:44 AM »
You can get some really good results by just taking an aerial image like you have (or one from cgtextures.com), making it seamless, and extracting size and color maps from it.
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