[SOLVED]Scatter By Inverse Volume Density?

[Atom]

Hi All,

I have a dragon character with thin wings. When I visualize the dragon as a volume I can see that the dragon is more dense in the body area than in the wings. How can I flip this around so I can scatter more points into the thin area of the wings and less points into the dense area of the body?

Edited July 22, 2017 by Atom

[moneitor]

You could fit range the density in a volume vop, but anyway in  I think the low density in the wings is just because the wings are a thinner geometry so they look less dense, you could create another scatter based on color, painting only the wings, and then merge them together. Not the most procedural approach but would work.

[bunker]

or a Volume Wrangle SOP before your scatter SOP:
if(@density>0)@density=chf("max_density")-@density;

[Noobini]

what about this school of thought....use surface area instead ? since you can clearly see them wings spreading out covering a lot of acreage...?

[Hartman-]

On 7/21/2017 at 8:33 PM, bunker said:

or a Volume Wrangle SOP before your scatter SOP:
if(@density>0)@density=chf("max_density")-@density;

I whipped up a quick file to demonstrate this.

invert_density_volume.hiplc

[marcoF]

Hi @Atom.
Is this setup with the dragon just a regular vdb from particles or how can you achieve this volume density from particle density setup like in your example?