Passive Collider problems with Alembic

   4348   5   2
User Avatar
Member
13 posts
Joined: July 2013
Offline
Hello All,

I'm new to Houdini and am trying us it for my Dynamics final. Been using it for two months now. I've RBD and FLIP fluid sims.

For my final here's my problem:
I imported my alembic scene from maya of mech walking through walls. Those walls were going to be fractured by the Mech in Houdini. The ground I was able to set as a passive from the abc file but I cannot simply make the mech a passive collider that was imported via alembic.

I'd figure that the geo that I want to be passive has to be from a SOP network but I don't know how. I tried many things such as using an object merge SOP to bring in the alembic geo.

Any thoughts of making my mech (imported as an alembic file format) into a passive collider?

Thank you in advance, much appreciated!


-Steven
User Avatar
Member
1391 posts
Joined: Dec. 2010
Offline
1- You should convert your Alembic type mech to Polygon (Add Convert SOP After Alembic SOP)
2- If you have animated Alembic file ,So you should turn on “Use Deforming Geometry” parameter on the your static object node (for mech) in the AutoDopNetwork

If not work ,Send your project :!:
https://www.youtube.com/c/sadjadrabiee [www.youtube.com]
Rabiee.Sadjad@Gmail.Com
User Avatar
Member
13 posts
Joined: July 2013
Offline
Thank you for your help Joker,

I was able to convert a piece of the mech as a collider and it was able to collide successfully

But the mech has a lot of pieces (about 80 or so) to also collide with.
Is there a procedural way rather than repeating this process for each piece one by one?

iI would send my file but the abc. file is too large when zipped.

Thank you for your help in advance.


-Steven
User Avatar
Member
1391 posts
Joined: Dec. 2010
Offline
You can use foreach SOP to do same operation on each piece.

Also You can send your project without abc file and take screen shot of your mech and send to me :?
https://www.youtube.com/c/sadjadrabiee [www.youtube.com]
Rabiee.Sadjad@Gmail.Com
User Avatar
Member
13 posts
Joined: July 2013
Offline
Joker,

For some reason, I'm unable to upload my file and picture
and I don't go over the file size contraints.

I was having troubles of doing a foreach node because each piece has it's own geometry node inside a alembic xform node, which part of the complex alembic archive node.

Thank you for your help in advance.


-Steven
User Avatar
Member
13 posts
Joined: July 2013
Offline
Joker,

Here's what I finished with about 4 weeks ago. Thank you for your help. I was able to solve my problem and moved forwards.

Here's the video:
https://vimeo.com/83293793 [vimeo.com]


-Steven
  • Quick Links