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Found 8 results

  1. animate scattering

    Hey, So i'm looking for a way to animate and freeze at some frame the global seed of the scattering node. I'm trying to replicate the polyjuice effect in Harry potter 2 and i'm having a bit of struggle with the scattering. The effect is some sort of bubbles that grow and reduce on a morphing head into an other. I managed the bubbles effect and the morphing just fine but the bubbles are always on the same place. They are controled by a scattering and color and i would like to animate it in that way : - when the color is black there are no bubbles and when it's white they grow. I would like the global seed of the scattering to change when it's black and freeze and take the last value when it's white. for exemple at from frame 0 to 10 it's white with the scattering seed set a 1, then from frame 11 to 15 it's back and the scattering seed changes to 2 then from frame 16 to 26 it's white again with the scattering froze to 2 and on and on in that way. Does anybody has a way to make that happen ? I joint the file with the pig head so that anyone can open it without any additionnal file. Thank you so much for your help PS: i'm very new to houdini. head_bubbles_ocforum.hipnc
  2. FEM freeze

    Good day I have an issue with FEM solver, behavior is freezing after some frame. As I understand that some specific feature. https://imgur.com/a/rJupTKW
  3. Hello everyone, I'm trying to make a simulation based on the Applied Houdini chain tutorial. One problem I am facing right now is that the pieces that are brought into the simulation through a sopsolver freeze in mid-air. I have changed the sleeping time, but that doesn't work. There does seem to be velocity on the points. But they just freeze in mid-air. Anyone know a solution? BoxChain_RTJ4.hip
  4. Frozen Particles

    Hi! I have a rookie problem. Let's see if you can help me solve it. When smoke emission occurs, some advected particles remain frozen when they reach a certain point. Increase the size of the gas container in case they collide with it and slow down, but it does not appear to have been repaired. If anyone has any idea. Attached photo that points to some of these frozen particles. and the hip file. Greetings and thanks for your time. shockwave_CACH.hiplc
  5. Freeze Flip Sim

    Hey Guys, Imagine an object which fills with liquid over time. When the object is full of liquid i want the motion of the Flip Fluid stop oder decrease over time. For example: - Object fills with Flip Fluid from Frame 1 to Frame 96. - Liquid and all motion of it slows down from Frame 96 to Frame 144, at Frame 144 everything is not moving anymore. I tried some pop wrangle inside my DOP but i cant get this working. Any suggestions? Should i do this after the DOP in SOP Level in a Vop/Wrangle or could I achive this inside my DOP? And How? Thanks and Greets, me
  6. Hello everyone. I got stuck - anybody knows how can I make the Wiresolver disable the points of the wire when they collide with the ground plane (or anything really ). Just stop solving them so they stop moving. This is a simple scene. There is only a Windforce dop with some noise and downward velocity in Y and the Wiresolver (and ground plane connected to the Static Solver). https://youtu.be/iMRW3GQ-XH8 With pops we have collision behavior but the wires don't work with pop nodes. Is there any built in functionality for this or does it need code? Extra question: When I use gravity and windforce the gravity doesn't work, so I faked it. We cannot mix those forces accepted by Wiresolver with stuff like gravity? I've tried introducing POP forces as well - with POPsolver connected to Multisolver, together with Wiresolver, but the sim just goes crazy. I've attached a test scene (I've also added a box to collide with). fallingWire_Problem.hipnc
  7. Hello! im David and i would like to create a effect like the one in: alice through the glassdor like u can see in these video: i know is imposible to achieve that level but i have the animated curves but my problem is that i dont know how to make the liquid viscous in time so is gonna start freezing after being emited, and also how to say only emit fluid one time not all the frames, the spikes part i already have it1 thanks!
  8. Cone twist constraint freeze?

    I'm looking at alternative techniques for doing plastic deformation in Rbds. Is it possible to freeze the cone twist constraint to prevent it from springing back to the original position. As in the picture I want to sim the constrained Geo until it the cone twist reaches a defined angle and then freeze the constraint so that it doesn't return the geo to its original state. I'm presently trying to do this in a SOP solver but not having great results. Does anybody know of a way to achieve this? Cheers!
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