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About jackassol

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  1. Grain Break + Mesh Break

  2. Hej i found a cool video on vimeo: I was wondering how to achieve this effect. At the first moment it looks like a hires model with a lot polygons which got displaced? But i'm not sure here.
  3. Grain impluse activation later

    Hello guys, i have a grain sande box with is starting to simulate at the first frame. I need later after 600 Frames. In the " impulse activation tab" i have here $SF==1 What should i add to activate it at frame 600? Best jack
  4. Hi - i created particles colors with the Attribwrangle VEXspression: // Color from Bounding Box @Cd = relbbox(0, @P); this code basicly created a bounding box based on all particles positions in the scene. (it changes the color - because the particle are moving in space) How to define an own bounding box (size of the bounding box) - based on primitive-cube for example? All the best bounding_box.hip
  5. Pop attract with grains

    i added my file.... Is it possible to add a target position to the grains like "fem" or "cloth" has? best jack grain.hip
  6. Pop attract with grains

    Hello guys, I wanted to use the pop attract in a grain simulation. I have a simple simulation with grain, which are falling down. After a specific frame I wanted to let the particles go back dynamical to the exact start position. I thought it’s possible with the pop-atttactor node. I’m the source tab, I can choose atttaction type: particles. Here I link to the rest position of the first frame of the grain particles. This doesn’t work for me. All the best jack
  7. delete points on spline -> do not close

    no - not working :-(
  8. Hello guys, i wanted to delete some points on a spline - my problem is that the spline always wanted to close itself and adds some bigger splines between the gabs ( i don't want it) . How can fix it? all the best delete.hip
  9. Hello guys, is it possible to drive the strenght of the smooth sop based on attributes (color)? I was trying to type from vex expressions..but he did not use it.
  10. Hi, i have a copy stamp and wanted to build a look at function for the copys to a specific point or geometry - the rotation for each copy should be applyed only on the Y-Axis . Is there a special node for this? How does it work? all the best. jack look at.hip
  11. FEMgravity field not working

    not possible?
  12. Hi, someone know how to setup a defined gravity field for an FEM simulation? I tied it with a mask field in the gravity note but it doen't work for FEM ( with an RDB Object it works perfectly)? Scenefile is attached: thanks so far! FEM_GRAVITYFIELD.hip
  13. Points from Volume

    Hello guys, i was looking for an option to drive particles(point) like a pyro Animation. Is there a option to do this in Houdini? I know that Houdini has a points from volume - node...but these is static an change the position on every Frame. Is there any solution for it? best jack
  14. Hi, i was trying to group particles from a flipfluidobject, but without luck. My goal is to add to differnet gravities with 2 Popforces + 2 PopGroups. The particles from the left half of my flipfluidobject should have a positive gravity and the right part should have a negative grafity. Does anyone has an solution for this? best force_Group.hip
  15. velocity fields for grains

    anybody still have an idea? i found a better example for this: