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General => Terragen Discussion => Topic started by: bobbystahr on March 04, 2008, 02:26:01 PM

Title: Vegetation On Crater Shader
Post by: bobbystahr on March 04, 2008, 02:26:01 PM
Is there a way to do this. I'd like to put foliage on a crater as in a very old dormant volcano with a lake in it but I can't seem to get veg to go on the actual crater...wassup with this? Is there a way or am I flogging a dead horse here?
Title: Re: Vegetation On Crater Shader
Post by: Ironshirt on March 04, 2008, 03:55:55 PM
Hi bobby,

when you insert a population, the compute terrain is plugged to the population's terrain shader by default. You have to plug the latest surface layer to the population instead, to get it to work.

I made a quick test with a crater shader and base colors and plugged the base colors node to the population node's terrain shader (instead of compute terrain).


(http://pop_crater_quick.jpg)



Title: Re: Vegetation On Crater Shader
Post by: peejay on March 04, 2008, 03:55:55 PM
works fine here with a crater shader on a power fractal landscape

care to post the tgd and I'll see if I can do it?

Title: Re: Vegetation On Crater Shader
Post by: bobbystahr on March 04, 2008, 08:07:23 PM
Welll I got ot to sorta work but it only puts the veg on on slope and I  kinda wanted it all round...maimly the vey top 1/5 of the crater to have veg. If someone could explain this via a scr grab of the network I'd be most grateful.. ..
Title: Re: Vegetation On Crater Shader
Post by: Virex on March 05, 2008, 08:57:04 AM
Can't you aproximate that with a ring-shaped blending mask?

I've drawn up a simple network that builds a white ring (actualy a hollow sphere, but making it a real ring would be more dificult) at a given position.
Title: Re: Vegetation On Crater Shader
Post by: bobbystahr on March 05, 2008, 10:30:33 AM
Woo Hoo..success at last...many thanks for the helpful suggestions...seems the first worked best...way t go Ironshirt..see pic....just what I was after. Now to do it with my real computer and the actual scene.. ...