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Houdini lava sim troubleshooting

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I am having two issues here. One, I am unable to figure out how to cool down the system so that when the lava hits an object it begins to cool down. My second issue is how do i make the particles smaller? right now i have large balls that are fairly visible when the lava hits the rock surface.

Please advise how i can fix these issues. Thank you for your time and consideration.


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Hi Chase!

I took a look at your file, i had once done a similar effect, what i did for it to work was i created a custom temperature on the colliding geometry, brought it to the Dop level and used it to drive the viscosity. Check the file below...




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