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Filling an object with particles

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Filling an object with particles

Unread postby isoyann » Sat Oct 10, 2015 9:05 am

Hi,

Here is a nice trick to fill an arbitrary object with particles, using the occlusion texture:
fillvolume.project
(26.86 KiB) Downloaded 690 times

ptc.png


Cheers,

Yann
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Re: Filling an object with particles

Unread postby ambassador1 » Wed Nov 04, 2015 7:50 pm

Cool, thanks for the tip, I will have to check out the scene. Here is a way to fill objects with volume test I did yesterday, spheres to volume cloud and then broken up with noise. It can fill any shape, but I was going for a cloud in particular. Not Pegasus, image attached
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objectToVolume.jpg
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Re: Filling an object with particles

Unread postby dostler » Fri Nov 06, 2015 12:40 am

ambassador1 wrote:Cool, thanks for the tip, I will have to check out the scene. Here is a way to fill objects with volume test I did yesterday, spheres to volume cloud and then broken up with noise. It can fill any shape, but I was going for a cloud in particular. Not Pegasus, image attached


Hey ambassador1, very cool cloud look. Any chance you can post a scene file for us to take a look at?

Thanks,
David
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Re: Filling an object with particles

Unread postby atnreg » Mon Dec 05, 2016 4:09 pm

isoyann wrote:Hi,

Here is a nice trick to fill an arbitrary object with particles, using the occlusion texture:
fillvolume.project

ptc.png


Cheers,

Yann


The image is broken so I don't know what it should look like but when I open that project, all I get is large sphere point cloud (point volume).
There is some brick object in the middle but I don't see any effect on that.
I am very newbie with Clarisse so could somebody please explain how to use this? :)

Thank you!

Antti
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Re: Filling an object with particles

Unread postby isoyann » Fri Dec 09, 2016 4:19 pm

Hi,

Just replace the sphere object in "input_geo" context by whatever you want.. or point the path of the brick object to any obj file.

Thanks,

Yann
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Re: Filling an object with particles

Unread postby atnreg » Sun Dec 11, 2016 8:28 am

isoyann wrote:Hi,

Just replace the sphere object in "input_geo" context by whatever you want.. or point the path of the brick object to any obj file.

Thanks,

Yann


Ok, I finally got it to work after I:
-changed occgroup type to rule and used ./InputGeo/*
-selected point_volume to scatterer geometry support
-added the brick object to scatterer geometry

The trick is quite cool and I think I even understand the idea :)
AMD Ryzen Threadripper 2990wx (32 core, 64 thd),64GB RAM,NVIDIA GTX 1080ti,Win10
Clarisse 3.6SP7,Houdini,Fusion360,Blender,ZBrush,Onyx,SubstPnt...
Clarisse since 2016-09-29 (Py 2017-01-04), Python since 2016-11-10
I do all 3D stuff for fun, no business
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Re: Filling an object with particles

Unread postby Ken_M » Sun Dec 30, 2018 10:28 am

I'm really curious how the spheres to cloud image was done.
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