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miccetro

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Everything posted by miccetro

  1. I have a curve where I used the parallel transport algorithm to transport the normal along the curve and then I use this curve as a follow curve fora bones chain. My question now is how can I setup up the twist along the bone chain and also make it twist beyond 180 degrees without flipping? (see attached file below) any guidance and examples will be greatly appreciated. Thanks. parallel_transport_curve_framing_03.hip
  2. Hello peeps, I'm trying to figure out something similar to some sort of ribbon setup in Houdini. Still, lots to do but right now I'm trying to work out rotations, I have twist working by itself such that if I twist the ribbon the bone rotates accordingly and bend working by itself as well, however, if I twist and bend the ribbon at the same time, the rotations become unstable. How can I fix this? Any help is much appreciated!!! Thanks. ribbon_setup_test_01.hip
  3. Another update on this. I Think I've found a setup that works using the sticky object on merged individual NURBS patches, maybe there is an easier way to set this up manually. But check out the attached file and feel free to give some feedback on this. Thanks. (You can turn persistent handles “ON” on the bones or dummy boxes to see axis handles) ribbon_setup_test_04.hip
  4. So I've realized that the rivet object has some attributes to create a coordinate frame (see attached), so I've used the cross product to build one using normal of the ribbon. But I still have flipping created by the cross product. Is there a way to solve this? or could someone point me in a better direction to build a ribbon spine type setup in Houdini? Thanks. ribbon_setup_test_03.hip
  5. Hi guys, I'm having some trouble using bone length for squash and stretch as its giving me crazy deformations that I cant fix. (see attached file) if anyone knows how I can solve this, it would be much appreciated. Also, the other problem is, how would I implement volume preservation with the squashing and stretching? In maya, we would use the joint scale but Houdini seems to give weird results if I scale bones. Any help is much appreciated. Thanks. rigging_bone_stretchy_problem_01.hip
  6. Hi guys, I'm having some trouble using bone length for squash and stretch as its giving me crazy deformations that I cant fix. (see attached file) if anyone knows how I can solve this, it would be much appreciated. Also, the other problem is, how would I implement volume preservation with the squashing and stretching? In maya, we would use the joint scale but Houdini seems to give weird results if I scale bones. Any help is much appreciated. Thanks. rigging_bone_stretchy_problem_01.hip
  7. Pick up rotation of a packed primitive point in CHOPS

    @bran_daid awesome, thanks much this is what I was looking for!
  8. Hi everyone, I'm trying to create a delay effector style effect on some copied boxes, but I've chosen the option to pack primitives before copying and now in CHOPS I want to know how to make say a Spring CHOP pick up the rotation of a packed prim. Here is an example scene file below. Thanks to anyone who can help. C4D_mograph_rebuilding_01.hip
  9. Hi everyone, I'm rigging a character and want to set up a constraints system with a prop and avoid the prop snapping when I switch constraint master. Please help! You can watch the preview of the course below is this is what I want to reproduce in houdini. Thanks much. https://www.pluralsight.com/courses/space-targeting-animation-maya-1981
  10. Hi ladies and gentlemen, boys and girls, I have a job to create a kaleidoscope animation. I'm just learning how a Kaleidoscope works in real life and time is limited. Has anyone ever worked on such a project and can give tips on how to get started and maybe some math behind how it works? I've attached a video I found that has this effect created by buck (starting at about 16 seconds in). Any help here would be much appreciated really. Thanks in advance. Sherwin Williams - Kaleidoscope-SD.mp4
  11. Hi everyone, I seeking workflow tips to render characters separately from the environment but still have all the interactions such as reflections, shadows and so forth in both layers. Any tips and ideas would be much appreciated as I'm working on a project which would benefit greatly from this technique in comp. Thanks in advance.
  12. Thanks much for the info @Juraj that's very helpful.
  13. Sop solver in Dopnet

    you can try to use object merge in sop solver to bring in your geometry or you can turn on "use external geo" on the sop solver DOP to bring in stuff from sops.
  14. houdini shadow catching?

    @haaranoos how did u solve this problem. Would love to know. Thanks.
  15. water drops on bottle

    Hi everyone, I've been trying to create a water drop system similar to the link below. I've uploaded a file to show my very little progress. I need to be pointed in the right direction. Help please! https://vimeo.com/40954039 waterDroplets_on_bottle_test_01.hip
  16. water drops on bottle

    @petz awesome. I came up with sort of a solution but your file was more elegant. Plus I learned some new vex stuff. Thanks. Heres a link to my experiment b4 I got your file. waterDroplets_on_bottle_test_05.hip
  17. water drops on bottle

    Hello @petz, what I want to do is figure out a way to make the flowing water droplet points (in scene file) attract the more static droplet points once it passes close to them and those static points now start to flow too. Thanks in advance.☺ waterDroplets_on_bottle_test_01.hip
  18. Hi peeps, I'm trying to recreate an old @petz setup for non overlapping copies on points using the new for each loop but it wont work. Hope someone can help. Files attached. newLoops_troubles.hip non_overlapping.hipnc
  19. sop solver data in a pop wrangle

    Hey peeps, I'm trying to access a data from a SOP solver in a pop wrangle input set to Dop data. Any ideas? I tried popobject1/sopsolver No luck. Thanks.
  20. sop solver data in a pop wrangle

    Makes sense thanks @Skybar. ☺
  21. SOPS new loops troubles

    @ofoggreat thanks but why didn't my setup work and how do I know when to put nodes inside the loop and when not to. Thanks again.
  22. sop solver data in a pop wrangle

    Thanks @Farmfieldno need for the multiple solver dop gotcha. ☺
  23. water drops on bottle

    @petz or anybody really lol I need to figure out a way to do something similar to the effects in the video between times 4:22 - 6:05 .I'd be grateful for any tips, files, advice anything. @mattakThanks for the link, it has some nice setups but I want to have control over the flowing droplets and so forth. Thanks for for replies and all future help. https://vimeo.com/40954039
  24. sop solver data in a pop wrangle

    @Atom @Farmfield This is what I was trying to do. Thanks much for your replies. I was trying to access the data from a SOP solver inside the inputs of the pop wrangle but i was thinking about it as DOPS data when in fact its just SOPs. Should have been obvious to me lol. Thanks Again. popWrangle_data_test_01.hip
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