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ikoon last won the day on August 29

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About ikoon

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    Houdini Master

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  • Name
    Jiri Miratsky
  • Location
    Czech Republic

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  1. I am curious, have you found any answer? Now that 5.1 is out, there are many new features and fixes regarding the USD: https://docs.unrealengine.com/5.1/en-US/unreal-engine-5.1-release-notes
  2. The filter in the Operator tree (network editor) used to search text in all the sources in wrangles in the file (if memory serves me right). That was really useful. Do we have to search with Find Node > Raw Parameter now? Or can it be enabled in 19.5? Or can the Dashbox search in values of the string parameters?
  3. I have a path, which is perfectly straight in some segments. In those straight segments, my calculation of banking fails (I use the Measure node - Principal Curvature). I solve it by "post-processing" the values (propagating a and blurring the curvature attribute). Please, is there any common way to solve this without post processing?
  4. Show shot name at Network Editor Top

    That text is generated by the nodegraphtitle.py file in the install directory: C:\Program Files\Side Effects Software\Houdini 19.0.622\houdini\python3.7libs\nodegraphtitle.py You can copy that file into the custom python3.7libs directory (any of your active packages or here C:\Users\info\OneDrive\Documents\houdini19.0\python3.7libs\nodegraphtitle.py ) and edit the source code.
  5. Do I need to Learn Python?

    This masterclass helped me to find my way to python in houdini: https://vimeo.com/14612897 That video is quite old, but it still should be valid. If you want to learn the new way of creating the "python states" in houdini, then I recommend this course: https://ambrosiussen.gumroad.com/l/pythonstatesforhoudini
  6. Scale Bullet Collisions

    Btw the @mass attribute of RBD objects should be also nice way to affect the movement. You can disable the Compute mass on the RBD Packed Object DOP and set your @mass attribute in sops.
  7. Scale Bullet Collisions

    Hi James, you could increase the Bounce (Physical parameter) on the collider. bullet bounce - v00.hiplc
  8. Set the template flag ( with CTRL ) in python

    Hi, it is called Selectable hou.nodeFlag.Selectable https://www.sidefx.com/docs/houdini/hom/hou/nodeFlag.html
  9. If you need exact number of random points, you could use Sort SOP (Point Sort: Random) and then Blast the right amount of points: This code removes approximate percentage: float thr = 0.15; float rand = rand(@ptnum + 0.654); if ( rand < thr) { removepoint(0, @ptnum); }
  10. What is wrong with my code

    Or maybe you wanted this? if (@P.y > 0) { v@Cd = set(0,1,0); }else { v@Cd = set(1,0,1); } if (v@Cd == set(0,1,0)) { v@N *= 5; // this line changed }
  11. What is wrong with my code

    Hi Gabor, it seems to work as expected. You can assign v@N = 5, but when doing so, you are abusing the syntax a bit. Houdini casts that 5 into a vector {5,5,5} Did you want something like this? if (@P.y > 0) { v@Cd = set(0,1,0); }else { v@Cd = set(1,0,1); } if (v@Cd == set(0,1,0)) { v@N = {0,5,0}; // I changed this line }
  12. I believe, that you could send particles along the surface (or smoothed expanded surface by SDF functions). A particle would act as a head of snake. As in this tutorial, you need two vectors ... tangent and cross: https://vimeo.com/162213251 At first, those particles will read the tangent direction of the circle (or the line) and you can add a bit of cross vector. Later, they will read mainly the cross vector (and swirl more and more around the surface). At the very end, you could let the "heads" go far from the surface. To make the snakes "pack up" over each other, you will probably need a sop solver and feed the polywired trail into the SDF. Depends on how much realism is needed.
  13. @makah21803 to color an input dot of a hda, colour the inputs inside that hda:
  14. Animatrix thank you very much for the OTL! Five years passed and I am thinking ... now that we have many new Attribute nodes, is this feature inbuilt in Houdini somewhere?
  15. Hi Brandon, what code do you use? I tried this and it prints the contents of the sop solver. Important thing is, that the editable part of the sop solver is in the /d/s sub network. I am on version 18.5.408 node = hou.node('/obj/geo1/solver1/d/s') node.asCode(recurse = True, brief = True)