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Found 6 results

  1. hey! I have thousands of primitives and I need to filter them and delete the ones that has a bounding box volume bigger than a certain value, I tried the measure sop but no luck, at the moment what I'm doing is a very tedious procedure of playblasting one for each frame based on their name and review the playblast to spot the bigger ones, but I know there must be something smarter...
  2. Getting view 2d rect from 3d geometry

    Can I get somehow 2d rect from SOP geometry using viewport transformation matrix?
  3. How can i measure the bounding box or distance between copys with different scales, so they don't overlap when copied to points or particles? and if i use a particle system how can i feed that data to the particle system so the particles have enough room inbetween so the copys don't interact...
  4. hi everyone got a little problem here - i've setup a ragdoll system for my crowd... i've animated a door in maya that opens up and that was exported from maya via alembic. the prob is as the characters run towards the door they sort of collide around a bounding box and i cant figure out why? has anyone encountered this? Its really pickling my head - they are clearly hitting a bounding box of the opening doors I'm afraid i cant send a scene either anyone any ideas? thanks ant
  5. hey, i have a geometry that i am fracturing with voronoi. i need to separate these pieces into active and passive pieces. instead of selecting them by name, i would like to select all the pieces within a bounding box/sphere. i thought about using a group sop and selecting by bbox, but this selects points or primitives, and not my piece* groups from voronoi. any ideas? thank you so much!
  6. Hello!!! I have a question regarding how to map the scale of a UV Project node (or any other value for that matter) using the bounding box of an object. I'm still getting used to the way the Houdini expressions work, so I would really appreciate a lot any input hta you could get me. I'm using an image sequence to trace some geometry, but I would like to have that traced geo to have the UV's properly projected since it is changing its form. One way that I tought of working this out is linking the UV SCALE values to something like this: UV Project SCALE X = bbox(myObject, sizeOfTheBoundingBoxInX) SCALE Y = bbox(myObject, sizeOfTheBoundingBoxInY) SCALE Z = bbox(myObject, sizeOfTheBoundingBoxInZ) I tried using the $BBX and $D_SIZEX but the UV Project node throws me an error and the scale gets evaluated in 0. Thanks a lot four your time guys!!!
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