Scatter With Terrain Displacement

JPF
Posts: 21
Joined: Fri Nov 14, 2014 1:10 pm

Scatter With Terrain Displacement

Postby JPF » Fri Nov 14, 2014 4:04 pm

Is it possible to have the scattered objects being affected with the displacement.
For example if I have a plane that I have displaced with vray to a mountain shape, would it be possible for the trees to follow the shape.
I always had this issue when populating trees on mountain with displacement, you get some trees flying or others under the terrain.

anvar
Posts: 473
Joined: Sun Jul 11, 2010 12:34 pm

Re: Scatter With Terrain Displacement

Postby anvar » Tue Nov 18, 2014 12:37 pm

have you tried using Offset?
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JPF
Posts: 21
Joined: Fri Nov 14, 2014 1:10 pm

Re: Scatter With Terrain Displacement

Postby JPF » Fri Nov 21, 2014 12:53 pm

Yes, It doesn't work, you don't get the same result at all, plus you don't have the controls like in the displacement.

anvar
Posts: 473
Joined: Sun Jul 11, 2010 12:34 pm

Re: Scatter With Terrain Displacement

Postby anvar » Tue Nov 25, 2014 7:05 pm

unfortunately this is not possible to achieve with scattering
as displacement happens during rendering process
and scattering generates geometry before rendering

JPF
Posts: 21
Joined: Fri Nov 14, 2014 1:10 pm

Re: Scatter With Terrain Displacement

Postby JPF » Tue Dec 02, 2014 5:45 pm

I kind of figured that, but wouldn't be possible to add this feature in some way.

bdancer
Posts: 108
Joined: Tue Jun 28, 2011 9:09 pm

Re: Scatter With Terrain Displacement

Postby bdancer » Wed Dec 03, 2014 6:28 am

This is impossible to add by 2 reasons:
1. There is no way to get subdivision data because it is generated at render time.
2. Even if I could get subdivision data it will be huge (micropolygon displacement will generate millons of triangles) and it will use all RAM/CPU time to generate scattered objects...


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