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Everything posted by hindukush

  1. Powder splash

    Yeah!it works just perfectly!!:-)))))
  2. Powder splash

    Hello forum! I need to create a powder splash, so the powder behave like water creating a crown. I did try a straightorward approach just converting flip particles, the look is ok but the "id" of every point change in time so the random pscale make the scale of each point change each frame. I also created extra powder emitting from fastest point some more particles. Can anybody suggest me a workaround for random pscale and maybe a more elegant overall approach to this? Thanks alot! Carlo
  3. Powder splash

    Hey Librarian, yes exactly! i think going to use pop fluid instead of flips for this one.With point replaicate to add density...let's see:-) C.
  4. Polygon from vdb topology problem

    Sorry my bad..didn't thank you!! Ill do it now!! Thanks alot for the tip!!
  5. Hi everybody! I'm facing issues when meshing a vdb, i have a dirt blotch on a cloth, the cloth is moving, the blotch is obtained converting a point cloud to mesh, of course the blotch while moving is changing topology,and..my bad...is flickering in time.. There is a way to freexe the topology at frame one..or some work around to make the blotch more stable? Thanks alot! Carlo
  6. fluid object mesh

    SOLVED!!! I did wrote the dop mask wrong...the correct is `dopobjscreatedby("/obj/AutoDopNetwork/fluid")` GHGHGHGHG
  7. fluid object mesh

    Hi everybody, i have a little problem, i'm setting up a fluid simulation using the fluid solver, i have to export the simulated geo, but using the dop import i can only visualize the emitter and the collsion geo and not the fluid mesh, any idea? Thanks alot! C.
  8. Pop rotation connected to accelleration

    Found this thread on the forum
  9. Hello forum! I have a basic question, how do i set particles rotation to be linked to accelleration?i can't find the rotation node, did they move it?(http://www.sidefx.com/docs/houdini/nodes/pop/rotation.html) Thanks alot! C.
  10. Dirt geo erosion

    Solved with noise on points to create groups, than animated the noise attribute to make it grow.
  11. Dirt geo erosion

    Hi everybody, i'm looking for a way to erode a dirt geo on a cloth, i have try with the solver making grow an attribute used to delete points, and thand convert the remaining points to vdb and than to geo. It works with a still geo, but if i use a cached one it uses only the first frame.There is some other method to make the erosion grow instead the solver?there is any workaround for this problem? Thaks alot!! C.
  12. Filaments behaviour

    Hello forum! I have a little question: how to avoid filaments to stop, or to let them stop later? i can't figure out how to make them conserve the motion without affect the emission speed.There are not many settings on the sourceFilaments node. Btw is something is possible to see also in the example scene about filaments in the docs. Cheers, Carlo
  13. Smoke attracted in a sphere

    Hi everybody, i'm tryng to acheive an effect where a volume dissolves in smoke and than the smoke is attracted in a sphere, possibly colliding with it...i'm at a good point, i have the volume dissolving and tested two methods for the attraction, but is not exactly as good as it should be. Method one is to create a field force with the sphere and give it negative value, this is good, but no collisions and also no control over the final shape. Method two is simply using the attract fluid, but in this case i can't shape the smoke around the sphere, only make the smoke move in the sphere direction, like an aim. There is any solution wich can give some control over the final shape and the attraction speed? Thanks alot Carlo
  14. Smoke attracted in a sphere

    Thanks alot! Opening the scene to give a look!
  15. Fire stripe on sea

    Hi everybody, i need a little hint on how set up a fire simulation.I have to create a fire stripe traveling on the sea. What i need is to create a fire stripe with faded head and tail, something like the picture attached, but the shot will be from the top. Since i will leave the stripe still in place and move the plate behind it i will animate the stripe to give some snake like movement, or dragon like..i prefer:-) Here the question...how can i drive the fuel with a ramp? Volume vop? Thanks alot! Carlo
  16. Fire stripe on sea

    You are a king! Thanks alot!
  17. Flower growth

    Thanks alot!!Exactly what i was searching for!!! I will give a look to the file tomorrow !!! H.
  18. Flower growth

    Hi everybody! I'm tryng to animate a bunch of flowers and their stems.This will be part of a ivy-like growing system...i will also post something about that.At the moment i have a single flower following the growing stem, but i have problems orienting the flower along the last segments normal, and also i'm wondering how to duplicate it but having some difference in the curl noise wich distort the stem, and also some offset in the animation. I did already seen some example on how offset the animation on the instances but sincerely i did not understand it well...how the frame in the timeshift node is connected with the copyStamp variable?can someone explain that to me? Thanks alot! FLOWER.hip
  19. How to Copy Multiple OBJ to ID

    Hi jingaa! Do you think this method could work to replace a group of collision objects with their hi res version? Cheers, C.
  20. emit particles from pyro sim

    You may do something like advect the particles from the fluid and then give them incandescence and alpha only when the fluid reach the value transferring them the attribute you whant to use...is more like it would happen in reality... Hope make sense... H.
  21. Paint peeling effect-How to disappear fragments

    OK solved...with a solver!
  22. Hi everybody! I'm working on a paint peeling effect, i need to make the paint fragments to disappear, they are obtained from voronoi fracture , i have set up a loop to make them scale down, it works but i need make it work only on the active fragments and not on those are still in place, i have an i@active attribute to interact with the cloth solver. Any help would be great, thanks in advice! Carlo
  23. Paint peeling effect-How to disappear fragments

    Hi Peon! Thanks for the help!Is a great hint! i have some dubt...if i 'm at frame 1 and subtract 50...is 49...if i multiply that for -0.1...is -4.9...not in the range... I also can't understand how increase of 0.1 each frame..is a loop needed? I attach the scene file! Thanks alot! C. cloth_tear_collision_test.hipnc
  24. Paint peeling effect-How to disappear fragments

    Hi Atom! I have slightly changed way to make them disappear...instead of scale down each shard or simply fade his alpha which are a little fake I'm trying to blast the single vertices as they are bumped up from the surface. So I did use group but directly in the blast node,and it works! But i have a new problem;-) If i do use the @active attribuite it will disappear as soon as it moves...i would like to have some delay between the bumping and the corrosion. So I need a new attribute (@corrosion) For this porpouse i think to do something like: @corrosion=@active+something that increase over time. Create a group of those points who reach a value of corrosion of 1.5 for example...and blast that group. There is a way to add 0.1 each frame? Other than animate a slider of course! I will post the scene tomorrow! Thanks a lot! C.
  25. Paint peeling effect-How to disappear fragments

    Hi atom! Thanks for the hint! Here come a noob question...since i@active is 0 when still and 1 when moving....how i connect Alpha wich is the opposite value...0 when active and 1 when still...? Hope u understand my dubt!:-) Carlo