Jump to content

Spiral Gas Target Force?


Atom

Recommended Posts

I have two spheres in the scene, a large one and a small one. The large one emits smoldering density while the small one attracts density and gobble it up with a sink.

gas_target_force.gif.1f69b71a068a0d1fa14f9d9fc56e3f4a.gif

The gas is directly drawn to the target. I would like it to spiral as it approaches the target.

Does anyone know how to achieve a spiraling gas target effect?

 

ap_smoldering_black_hole_031218.hiplc

Edited by Atom
  • Like 2
Link to comment
Share on other sites

The issue I believe is your sink force is too strong, causing your curl noise to be flattened out i.e. all the shredding and turbulence options in the pyro node. A quick hack would be to rotate your small object 90 degrees to be vertical and reduce your  sink strength, and then post rotate it after the sim. Alternative you can make the gravity and buoyancy force on the axis for that smoke object. You are pretty much there.

Link to comment
Share on other sites

After playing around with this all day I managed to get some spiral action by creating a line between the two objects and using that as a SOP source for a Gas Curve Force. The Orbit Scale creates the spiral motion. I seem to have lost the funnel shape, however, and I don't really feel like my sink or divergence field are working correctly anymore.

gas_target_force_spiral.gif

ap_smoldering_black_hole_031318.hiplc

Edited by Atom
  • Thanks 1
Link to comment
Share on other sites

You could try just applying the second effect you have to that sphere+funnel as a modeled shape. A polygon sphere with a soft peak pulling out the pole, and then perhaps a clip plane to extend the shape over time. 

Edited by LaidlawFX
Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
×
  • Create New...