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Surface tension between geometry
show user profile  Nithel
I'm trying to create a surface-tension effect between two spheres. The effect I'm going for is the same as this I made using displacement on a geosphere:



I could of course just manually stitch to spheres together, but the idea is to be able to animate the two spheres interacting and moving about each other. My first thought was to try and find a way to dynamically merge geometry using modifiers. Easier said than done though (I have no idea if something like that is even possible)

Any ideas?
read 609 times
8/31/2012 9:11:12 AM (last edit: 8/31/2012 9:19:35 AM)
show user profile  jareu
look up blob-mesh, or meta particles. basically will achieve exactly that.
http://xedium3d.com/tutorials/blobmesh/

hint: can be used with any 3D primative, doesn't need to be particles.



He who says it cannot be done is interrupting the man doing it.

read 587 times
8/31/2012 9:23:37 AM (last edit: 8/31/2012 9:23:37 AM)
show user profile  jareu
can confirm that this works pretty well with two geospheres, Icosa geodesic base types, 4 segments, and a blobmesh compound object.

play around with various size settings and Coarseness settings, but it will do what you want.



He who says it cannot be done is interrupting the man doing it.

read 582 times
8/31/2012 9:41:15 AM (last edit: 8/31/2012 9:41:15 AM)
show user profile  Nithel
That looks perfect!
When you say it can be used with primitives, do you mean instanced geometry inside a particle system, or individual objects? I not entirely sure how I would animate individual particles inside a particle system precisely..
I'll definitely mess with this a bit though. I might be able to do what I wanted regardless.
read 571 times
8/31/2012 10:36:53 AM (last edit: 8/31/2012 10:36:53 AM)
show user profile  jareu
both. what happens is that Blobmesh creates a blob around each vertex and then merges it all into one object based on local distances. This will work for particles and 3D objects alike.

try out my above method, then once you've added the two spheres to the blob mesh you'll still have individual control, which means you can keyframe animate the spheres like normal, and the blobmesh will update itself in realtime.



He who says it cannot be done is interrupting the man doing it.

read 568 times
8/31/2012 10:41:41 AM (last edit: 8/31/2012 10:47:47 AM)
show user profile  Nithel
Aha, I misunderstood you at first. I thought it was limited to the particle system in the tutorial you linked to.
This works perfectly, excactly what I was looking for. Thanks for the help!
read 561 times
8/31/2012 11:54:42 AM (last edit: 8/31/2012 11:54:42 AM)
show user profile  Nithel
I got it working, but it's not very smooth. Tried lowering the coarseness as recommended in one of the tutorials, but I just get smaller unsmooth areas, making it look aliased. I was hoping I could use the effect for a closeup. Any ideas?



edit: lowering the coarseness too low seems to crash max.
read 551 times
8/31/2012 1:07:32 PM (last edit: 8/31/2012 1:08:51 PM)
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