Hello,

Got still dilemma with instanced objects.
When i am running the animation the bubbles explode weirdly. The result is far away from bubbles..
I have same settings than in the scene where i created them except i made changes to dynamic relationships and added one more lifespanPP attribute..
Playback seed is “play every frame” everything on the scene runs with this speed.
Do you got any solutions for this??

Thanks!

hi, did u try removing the instanced objects from the instance node and adding them again..??? some times when its imported to another scene it doesn’t take it properly.. and i am not sure if its the problem or not but when ever i import particles and with instanced objects,i normally put the whole thing in one group and then import it.. i sometimes get a wierd sim whenever i dont group them when importing.

Chetan.V|Fx Artist
http://www.gamesedfx.com

Hello,

I managed to fix it.
I just left the imported bubbles in to position where they appeared when imported;D
Yes, i also group imported stuff in to one folder it s easier to handle.
But now i got new problem with the same issue, when i run the animation the bubbles just explode and wont run normally playback seed is “play every frame”.
Do you got any solutions for this??

Thanks mate!

Can you post your scene somewhere so that we can look at it? I think that English is maybe not your first language. Please don’t be offended, but you are not writing clearly enough to be understood. If you don’t have a place to upload the file, email it to me: michiel(at)thnkr.com. I will post the solution here.

Could post a picture.
True dat, English is my fourth language..
I try explaining one more time! If u dont get it, i could post a maya file to demonstrate whats going on!
I am trying to animate realistic looking bubbles when object (anchor) hits the water and drops in to the bottom.
I got animated bubble geometry witch i have instanced to a surface emitter (the anchor).
Photo 1. The geometry “explodes” when the particle simulation starts.
Photo 2. These are the animated bubbles ( the result should be this when the anchor hits the water)

Hope i was more clear now;D

If u got answer to the mystery of flipping geometry, i appreciate that a lot!

	Attachment

I promised I would post what I found after taking a look at the scene. The problem was with the goal of particle instanced softbody deformers. The way to set up something like this is as follows:

Create a simple object like a sphere
Add a lattice deformer
With the lattice selected, create a softbody with
Creation Options: Duplicate, make original soft
Make non-soft a goal.

Select the softbody particles, and create a turbulence field.

Create a particle emitter
Select the deforming object (the sphere)
Shift select the new (emitted) particle.
go to [Dynamics] Particles->Instancer (Replacement)

This is all fine.

But when you start hiding things that you no longer want to see, Maya can no longer figure out the goal weight of the softbody particles, and what happens is that the softbody particles are now only controlled by the turbulence field, unconstrained by the goal, so the softbody particles fly all over the place, making the objects explode.

Now this happens only occasionally, so you may see that playing back does not work, but rendering does. The solution is not to hide the objects but add them to a displayLayer and hide the layer rather than the objects themselves.