Itoo Software Forum

Forest Pack => Forest Pro (*) => Topic started by: CO2263 on October 09, 2013, 04:01:03 PM

Title: populate forest over specific material id only
Post by: CO2263 on October 09, 2013, 04:01:03 PM

Hi
Is there any way to populate forest over specific material id (lets say matID=4)?
I have lots of geometry and unfortunately its not instances...  so I need to detach every single polygon, then join, then use as surface to scatter forest (stones in this case)

hope there is a solution

Title: Re: populate forest over specific material id only
Post by: iToo on October 09, 2013, 04:23:10 PM

No, sorry. There is not an option to scatter by material ID. You must prepare the surfaces manually.

Title: Re: populate forest over specific material id only
Post by: CO2263 on October 09, 2013, 04:37:01 PM

thx for reply
any chance to have this option in the future?

Title: Re: populate forest over specific material id only
Post by: iToo on October 09, 2013, 05:18:15 PM

If i remember well, we tried it some time ago but there was some technical limitation. I'll take a look to it again.

Title: Re: populate forest over specific material id only
Post by: CO2263 on October 10, 2013, 08:20:22 AM

would be nice
thank you

Title: Re: populate forest over specific material id only
Post by: CO2263 on October 10, 2013, 09:25:22 AM

hi
I have some other issue, could you please help me to isolate the problem
I joined all geometry manually into one polygon (stone_surf)
but stones never grow on it
I made new plane and it works fine over plane. Tried to attach stone_surf to plane - still no luck. Stones don't want to scatter over small polygons (((

pls guide me how to fix it
Thanks

Title: Re: populate forest over specific material id only
Post by: iToo on October 10, 2013, 09:50:26 AM

Please, check the normals of those polygons. They must be facing up.

Title: Re: populate forest over specific material id only
Post by: CO2263 on October 10, 2013, 10:00:18 AM

yes, that was the first think I checked
extrude polygon goes up
still no luck

Title: Re: populate forest over specific material id only
Post by: iToo on October 10, 2013, 10:10:14 AM

Please, post a test scene. I will check it.

Title: Re: populate forest over specific material id only
Post by: CO2263 on October 10, 2013, 10:15:35 AM

here it is

my walkoround for now - big plane and spline area instead

Title: Re: populate forest over specific material id only
Post by: iToo on October 10, 2013, 11:39:49 AM

It was a normals issue after all. Applying a Normal modifier solves the problem.

Title: Re: populate forest over specific material id only
Post by: CO2263 on October 10, 2013, 12:41:49 PM

hm...
I tried 'normal' modifier before and it didnt work
will try again
thank you

PS. any chance to force forest to grow up ignoring normals?

Title: Re: populate forest over specific material id only
Post by: iToo on October 10, 2013, 01:07:49 PM

Quote

PS. any chance to force forest to grow up ignoring normals?

It would generate strange results with the "Direction" parameter, besides other features that use the surface normal.