build naiad particle mesh in Houdini.

[saotome_rui]

Hey guys. I have a question. i imported the naiad particles to Houdini and i want to mesh it. i just used the particle fluid surface node to create the mesh.

but i takes a huge memory then Houdini crashed.

I am a new user for Houdini. am i did it right? the scene have just 5Million particles.

And when i saw Igor's video. he used the new tool named openvdb to create the mesh surface. anybody could give me more about this?

thx guys

[Skybar]

Just create a FLIP sim from the shelf and you can see how it gets meshed. If you are using 12.5 it will use the OpenVDB workflow.

[JaydenDP]

Could try put an attribute create after the imported particles and create a pscale attribute, put the value to something tiny like 0.0001 and then put down the particle surfacer. You might see nothing but you can slowly increase that pscale value till you do.

[saotome_rui]

thank you guys. i tried many times and i know how to mesh the particles final.

[whodini]

If you plan on doing motion blur at render time here are some things to check out. Naiad particles have velocity but they can come in as "velocity" and not "v" you want to map velocity to v so houdini has a valid value for point velocity. You may want to make a vopsop and create an import attribute node set to read "velocity" and plug the output of it into the point velocity output. Using a vopsop will speed up the remapping of that attribute if you have millions of points, since vopsops are threaded.