Chaos Corona Forum

Chaos Scatter => [Scatter] I need help! => Topic started by: lupaz on 2017-12-09, 18:08:16

Title: Corona Scatter- bad performance on density control
Post by: lupaz on 2017-12-09, 18:08:16

Hi all,

I'm using Corona 1.6 with 3ds max 2016

I noticed that using the slot "Surface Scattering/Random Distribution/Map:" to control the density has major performance issues that don't exist when applying the same map on, for example, the X transform slot in Transformations/Scale.

I'd use the transform slot except that I want to reduce the amount of instances as opposed to reduce them in scale until they're not visible.

Is this a bug or there's something I'm not doing right?

Thank you.

EDIT: This happens when the distribution object has a large amount of polygons.

Title: Re: Corona Scatter- bad performance on density control
Post by: romullus on 2017-12-09, 19:57:27

Not sure about performance, perhaps you could try to report it as a bug if difference in performance is significant.

Quote from: lupaz on 2017-12-09, 18:08:16

I'd use the transform slot except that I want to reduce the amount of instances as opposed to reduce them in scale until they're not visible.

Actually it's the other way round - mapping scale can give you less amount of instances (i guess that zero size instances are culled down), meanwhile density map only redistributes instances, but leaves exactly the same amount of them, unless you will manually adjust count as well.