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About akaliln

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  1. I have a question about pyro rendering with fire pass. have no idea why there appearing white dots at the fire_mask pass. I did try to tweak some parameters on shader and mantra. but the result goes to the same way...... does anyone know what cause it render like this result or have any idea how to solve this problem? thanks a lot.
  2. solved. thx
  3. pyro smoke issue

    you are right. it's works fine after I plug off collision fields. I agreed what you said about the upres. you will get very sharp shape by upres. anyway. I should find a way to solve the collision problem in upres. thx for your help.
  4. pyro smoke issue

    hi I have a problem with smoke upres sim. it's normal when I cache lowres. but when I use upres to sim. the result is weird. the smoke has been cut into quarter after few frames. don't know if anyone has the same experience. I tried to solve it with change my bounding parameter setting. but nothing going good..... ( maybe the problem not from bounding box, because the bounding range in normal in the viewport. not sure....) the video and pics attached. issue_1.mov
  5. the question about pc open (solved)

    cool! thank you. I think it could be bind out the parameter directly then check from the sop level.
  6. the question about pc open (solved)

    thx for your reply. now I understand how it works. problem solved! thank you.
  7. Hi everyone, I have a little confuse about pc open. Normally we create a pc open need a current element "P" to be the query position. and then search the target file by radius. but what if i create pc open in cvex shader builder to work with vex volume procedural in Shop. where is the current P comes from? we still need a "P" to be the query position to do searching. (plz let me know if I'm wrong thx) if I connect pc open query pos to geo vop global parameter "P" then do the rest of part. although it still work but no idea how. and I don't know how to export the parameters to check on the spread sheet.
  8. some issue about push points to the surface (solved)

    thank you very much!! the problem solved. I tried to fixed all what you mentioned about and it's working perfect after that!! thanks for your help.
  9. some issue about push points to the surface (solved)

    Hi thanks for your reply. I tried to understand how the volume gradient and volume sample node work, and read some example on the internet. thanks for your link info, there are also have some good way to keep points on the surface.
  10. hi everyone, I have some issue about to push points to the surface. I use volume gradient and volume sample to detect the distance to the surface. The result is worked but not perfectly on the surface. and also have a bit shaking. I try to change the voxel size of vdb. but the issue still exist. Is there anyone can help me to have a look the file please? thx push_points_issue.hipnc
  11. question about project

    hi I tried to use ray sop to project lines along to model surface, but it couldn't project perfectly in some reason. I tried to find out where i missed. but nothing comes out. hip file attached below. thanks ray_sop_question.hip
  12. particle split loop

    hello, I have been try to make some effect by particles. I was trying to use pop network to make something like particles split. but if I use POP replicate. it only split once. How can I make particles split loop? just like 1 to 2 and 2 to 4 after that. I can't find a way to make it happened. thx
  13. velocity field question

    hello Stephen Moroz thx for reply. i just found out why particles are stopping. the one of them just like what you did mentioned about. the particles are out of volume. and I tried change particle footprint to velocity trail. Particles start moving better after that. but im still trying to understand why it works.
  14. velocity field question

    hello guys, I tried to get velocity field in to POP and use advect by volume. but particles stop moving when they reaching some position. I can't find the reason of it and how to fix it. Does anyone can help that for me please? vortex_field_problem.hipnc