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sipi

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About sipi

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    Peon

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  • Name
    Sipos Attila
  • Location
    Hungary
  1. Hi everyone, I'm walking around the whitewater system. I watched the whitewater masterclass with Omar Zarifi, and near at the end he uses an attribute called @pbfstiffness, and it's really cool. I'm wondering if there's any more attributes like that which can be used for greater control. Is there any list out there about the available attributes especially in the whitewater environment?
  2. Thank you very much Anim and Noobini! Both solutions works like a charm.
  3. Thank you Anim for the quick reply! It seems to me that this method unfortunatly doesn't work well with other geometry, I tried with a pig and the result isn't accurate. ts_delete_internal_bubbles_withPig.hiplc
  4. hi, I scattering points on a surface then I use vdb from particles on them, and finally convert the result into polygons, but I got an unwanted inner core geometry. How can I get rid of that procedurally?
  5. update: according to the Arnold Support, this phenomenon is a bug.
  6. Dilate VDB

    Sounds like a good idea! Can you explain how to actually do it in the volume VOP?
  7. Hello, I made a comparison between Arnold and Mantra renderer about vdb motion blur. Mantra works like a charm, but anyone knows why Arnold volume motion blur looks like this??
  8. Dilate VDB

    Hi everyone, Is it possible to dilate a velocity vector field? The VDB Reshape SDF node only works on sdf fields. VDB Activate can expand but it only makes active voxels, I would like to expand the vel field values from the border of the field outward.
  9. Hi everyone, I'm trying to render vdbs with motion blur using mantra and arnold. With mantra it's working fine, but with arnold the motion blur won't be proper. I made a comparison. You can clearly see, something is not right. It became more obvious when I increased the velocity. The motion blur with mantra is excellent, but with arnold it became a mess. Do you have any idea what is happening here?
  10. Hi everyone, In the case of an RBD simulation with constraints, is it possible with a sop solver to copy or transfer the constraint attributes and broken group (which comes from the relationship_geometry Object Merge node) to the dop geometry? Basically I would like to use these attribs (angle, distance, torque, etc.) and broken group after the dop import, but I can't really get them. Do you have any idea?
  11. It solved. Thank you very much!!!
  12. Sorry I can't share it but it's made with shelf tool, really nothing extra.
  13. Hi dleonhardt, Unfortunately it didn't solve it. The deafult value is 4, I tried it with even 0.2 but it didn't help. (lower numbers than that blew up the computer)
  14. Hey everyone! I have a simple hiRes flip simulation with a boat, but I can't mesh it properly. On random frames the middle part is disappears, and I have no idea why. I managed to figure it out it's somehow coming from the Flattening Geometry option but I couldn't solve the problem. Do you have any ideas?
  15. Hello, I have noticed something interesting which I don't understand, but maybe somebody out there does. I created a Wave Tank shelf tool then a sphere and I hit the Deforming Object shelf on the sphere. Now I'm checking the OUT_INITIAL_VELOCITY node with PointsFromVolume and volumeTrail nodes. When I wire the collision geo into the collision input of the OceanSource node the velocity is become wierd as you can see, and it affects on the simulation in a bad way. It's just shelf tool! I didn't make any changes. I use 17.0. Is it normal or is it a bug or what is it? Is there anybody, who knows it?
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