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crocoraffe

First taste
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Posts: 9
Reply with quote  #1 
Hello guys. I'am trying to place spheres on top of bifrost particles. Scattering goes ok if i do it through instancing or copier, but if i want to set for my spheres random size they start changing their size from frame to frame. is it any right way to do that? from my side i think i do it wrong.

i try to make something like stylized foam setup

Code:

1.PNG  2.PNG

two playblast examples
https://cloud.mail.ru/public/AYro/naG3XMd6c
https://cloud.mail.ru/public/EiP7/JbZjSSKsE


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pshipkov

SOuP Jedi
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Posts: 4,646
Reply with quote  #2 
You will need "radiusPP" attribute associated to the points of the bifost sim to be able to keep the spheres radius under control.
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rolfcoppter

Wanting the recipes
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Posts: 56
Reply with quote  #3 
I use this trick to keep random assigned values on the copier node from popping form frame to frame. 
I use the point Cloud to mesh node to assign each point to a specific vert(I find even with many particles this doesnt take very long to do.)
Then I plug that into the Mesh2Array node to assign a random float to each vert(make sure type is set to mesh Vertex) 
then I connect the random float or vector to the Copier scale input
ps sorry for my drawn connection in my screen grab i forgot to make it before it took it  Capture.PNG 

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crocoraffe

First taste
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Posts: 9
Reply with quote  #4 
rolfcoppter, i try make setup like you said, but it seems not working,  spheres still popping(


Guys, can you look at my scene please?

 
Attached Files
ma test_bubbles.ma (1.28 MB, 1 views)

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