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Hello Blender Community,

I am attempting to design an object that falls onto a surface, at which point it will begin melting (via a fluid simulation at low speed and high viscosity). I want the object to fully maintain its form until it comes into contact with the surface.

As it stands, I have attempted this design with multiple layers. On layer one is the rigid body object falling onto the surface. On layer two is the exact same object with a fluid simulation applied. As it stands, I have merely switched the layers rendered during the rendering process to simulate the desired effect, but I'm not entirely satisfied with the result. Is there a better way to go about my design?

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    $\begingroup$ I think that's pretty much what you'll have to do. Whether you end up animating visibility, layers, whatever, you'll have to swap the rigid body with the fluid at some point.. $\endgroup$
    – gandalf3
    Aug 23, 2014 at 22:26
  • $\begingroup$ Duplicate of this $\endgroup$
    – sambler
    Aug 24, 2014 at 10:18
  • $\begingroup$ Try using animation drivers to control the start of the fluid simulator using the distance of the fluid object, i.e. if it is 0-ish, multiply the current frame with the frame rate. $\endgroup$ Aug 24, 2014 at 13:59

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