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bif_particles to create_instances issue

12 REPLIES 12
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Message 1 of 13
xianwu_liu
386 Views, 12 Replies

bif_particles to create_instances issue

Hi, I am try to use Aero bif cache to create instance with different object.
So I use read_bif_particles and create_instances nodes in bifrost graph to make it.

But for some reason the particle id didn't been read or someting, instance randomize_scale and rotation keep changing in every frame.
only

Any idea about this?

12 REPLIES 12
Message 2 of 13
sepu6
in reply to: xianwu_liu

Can you post a scene, maybe just like 5 frames or so? 
Anyhow if you have an ID that is consistent make sure you connected in the `instance ID override` 

Message 3 of 13
xianwu_liu
in reply to: sepu6

Thanks for reply, here is the playblast

Message 4 of 13
sepu6
in reply to: xianwu_liu

This does not help me to help you though I see that you pts are jumping. Did you try what I said above? If that does not work, post a scene not a playblast. 

Message 5 of 13
xianwu_liu
in reply to: sepu6

Sorry about that, I misunderstood.

Here is the attached file.
By the way, I couldn't find the instance ID override attribute to connect, so I didn't try it.

Thanks for the help.

Message 6 of 13
sepu6
in reply to: xianwu_liu

So as I mentioned, you need to get the point id from the pts and connect that to the instance id override. Here is a fixed file for you. 

 

maya_9UwzkOQK8z.png

Message 7 of 13
xianwu_liu
in reply to: sepu6

Wow it's working, thanks a lot!  However, there's another issue.

My rendering engine doesn't support rendering Bifrost graphs directly, so I need to export them somehow to Maya particles or MASH.

I've tried these two solutions, but it seems I can only get the position information and nothing else

(size, id, rotation etc).

https://www.youtube.com/watch?v=h73jTnokoM8&t=2s&ab_channel=AndreaPinto

https://www.youtube.com/watch?v=CB2TSgdEJPo&t=169s&ab_channel=HyUU

 

Here is my files and plugin in attached, could you let me know any idea about this?

 

 

 

Maya plug-in and Bifrost compounds available here: https://github.com/HeydoubleU/MeshToParticles
This node transfers attributes from bifrost to Instancer or Mash https://randolpho.gumroad.com/l/bifToInstancer
Message 8 of 13
sepu6
in reply to: xianwu_liu

What render engine are you using?

Message 9 of 13
xianwu_liu
in reply to: sepu6

I am using Octane to render.

Message 10 of 13
sepu6
in reply to: xianwu_liu

I can look it up later, but the heydoubleu plugin should work it should transfer, point_size, rotation, etc just make sure you are following correctly what he is saying. 

Message 11 of 13
xianwu_liu
in reply to: sepu6

Thanks, I will check again as well.

Message 12 of 13
xianwu_liu
in reply to: sepu6

BTW I just notice the point scale and rotation still jumping every frame.

Could you please let me know how to fix it?

Message 13 of 13
sepu6
in reply to: xianwu_liu

Then just set the point_id on the pts so the seed does not change. Like this - without the override. 

Make sure to type the property correctly

 

maya_GeMNKXJlfG.png

 

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