furrowed grass

[pixelplume]

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

[iToo]

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

[pixelplume]

looking into it now.....Thanks for your quick reply

[pixelplume]

It seems that scale maps only work on surfaces not splines.....correct?

[iToo]

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.

[QM3423]

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

[George]

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.