Chaos Corona Forum

General Category => General CG Discussion => Topic started by: Monkeybrother on 2018-04-04, 17:16:19

Title: Creating "clouds" of objects (leaves, insects etc)?
Post by: Monkeybrother on 2018-04-04, 17:16:19
Hi. Like the title says, what's the fastest and easiest way to create clouds of objects? I've tried the pcloud object in Max, but it's very slow and seems buggy, it slows down/freezes max. Also, I couldn't get it to use several meshes randomly. I have access to max/corona scatter/forest pack.
Title: Re: Creating "clouds" of objects (leaves, insects etc)?
Post by: romullus on 2018-04-04, 17:26:28
For static shots any scatterer would do - Corona, forest, etc. For animations i would use pflow instead of obsolete max particle systems.
Title: Re: Creating "clouds" of objects (leaves, insects etc)?
Post by: Monkeybrother on 2018-04-04, 18:00:50
But how do you scatter in the air? I tried using particle systems as scatter "surfaces", but nothing worked in corona scatter or forest pack. I also tried mesh particles, but no luck.
Title: Re: Creating "clouds" of objects (leaves, insects etc)?
Post by: TomG on 2018-04-04, 18:11:33
Change Corona Scatter from "2D - on surfaces" to "3D - in bounding box" (edit and then scatter on something that isn't a plane, of course :) )
Title: Re: Creating "clouds" of objects (leaves, insects etc)?
Post by: Monkeybrother on 2018-04-04, 18:29:42
Change Corona Scatter from "2D - on surfaces" to "3D - in bounding box" (edit and then scatter on something that isn't a plane, of course :) )

Of course. So RTFM, basically, should have been able to figure that out. Thanks.
Title: Re: Creating "clouds" of objects (leaves, insects etc)?
Post by: Monkeybrother on 2018-04-04, 18:40:11
Another problem though. Corona scatter doesn't work with motion blur? (Trying to do blowing leaves)
Title: Re: Creating "clouds" of objects (leaves, insects etc)?
Post by: TomG on 2018-04-04, 18:51:37
Correct (from a quick test just now), you'd likely have to bake the scatter to geometry and then animate.
Title: Re: Creating "clouds" of objects (leaves, insects etc)?
Post by: Monkeybrother on 2018-04-04, 19:02:34
Correct (from a quick test just now), you'd likely have to bake the scatter to geometry and then animate.

Ok, thanks. PFlow was easy enough to figure out once I knew it existed, so I'll go with that for now.
Title: Re: Creating "clouds" of objects (leaves, insects etc)?
Post by: romullus on 2018-04-04, 19:19:33
You can't go wrong with pflow... almost :] It has some issues with Corona, but it's so much more powerful tool than simple scatterer.

Change Corona Scatter from "2D - on surfaces" to "3D - in bounding box" (edit and then scatter on something that isn't a plane, of course :) )

Since 3D method uses only distribution object's bounding box, i prefer to use 2D (on surface) plus translation in z direction - that way i maintain full control in x and y directions. I wish 3D method would use true volume of distribution object instead of bounding box.
Title: Re: Creating "clouds" of objects (leaves, insects etc)?
Post by: Ondra on 2018-04-04, 19:21:39
Good news, we will do the tight 3D distribution in foreseeable future ;)
Title: Re: Creating "clouds" of objects (leaves, insects etc)?
Post by: romullus on 2018-04-04, 19:28:17
Haha, brilliant! Any small improvement in CScatter, is very welcomed! :]