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Author Topic: Can i Scatter objects based on another FP Scatter..  (Read 658 times)

Nintenjo

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Can i Scatter objects based on another FP Scatter..
« on: August 22, 2025, 11:13:12 am »
I know i can use another FP as an Exclude, but what if i wanted to use it as an include?

My example..

I want to scatter some small mushrooms under some trees.
My trees are already scattered but i want my mushrooms to only include near my scattered tree's..  With some falloff control to have them scale down as they get further from each tree center.

Is this kind of operation possible? Additional: Can i use a FPSet to do this if my source Scatter was in the scene rather than FP's?

Michal Karmazín

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Re: Can i Scatter objects based on another FP Scatter..
« Reply #1 on: August 22, 2025, 11:50:38 am »
Hi,

Changing the Render Mode of the surface object from Automatic to Meshes under the Display roll-out should fix the issue. By default, ForestPack doesn’t create a mesh for rendering; it uses a custom shader to generate native instances, allowing millions of items to render efficiently. However, if you want to use a Forest object as a surface for other Forest object(s), a standard mesh must be generated. Note that instancing won’t apply in this case — the Forest object will be converted to a mesh. If your objects have many polygons, you may need to adjust the Display > Max faces limit (default 5 million faces).

Currently, Forest objects cannot be used as items within a ForestSet.

I hope this helps.

Best regards,

Arslan

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Re: Can i Scatter objects based on another FP Scatter..
« Reply #2 on: August 22, 2025, 03:26:47 pm »
Hi,

There is actually a technique you can use to do this, the tutorial link is below, take a look if you want.

https://youtu.be/3XetvN6rmms?t=914