topic Re: Problems in creating pouring water by using Bifrost in Maya Dynamics Forum

Problems in creating pouring water by using Bifrost

Anonymous — Fri, 13 Nov 2015 12:06:06 GMT

Hello, maya fellows. I try to create water pouring out of a bucket by using Bifrost. But some problems stand in my way. First, I selected my emitter then created liquid in Bifrost option. A very very tiny cubic appeared in the center of grid. It seemed the tiny liquid container would never cover the emitter. Second, I continued to select an object for colide. Warning appeared ' xx has a large area and may run out of memory or take a while to simulate'. Then, I ignored it and continued to make animation, nothing happened.

I wonder if it is because of my geometric size of my models or something else? And I tried create new scene and simple model to test Bifrost, everyting worked well.

Re: Problems in creating pouring water by using Bifrost

agraham — Fri, 13 Nov 2015 19:23:06 GMT

Your scene scale looks pretty massive. How many units across is your bucket? Your MVS could be too low. The default of 0.5 is too low-res for objects this small, try reducing it.

As for your collider issues, what objects are you colliding with? If you selected the ground, it looks huge; that's why you're getting those warnings. Try creating lower-resolution proxies for your collision geometry, and use those as colliders. Make sure they only extend to where you want the liquid to go, and no further.

Re: Problems in creating pouring water by using Bifrost

Anonymous — Mon, 16 Nov 2015 14:07:37 GMT

Thank you for your tips, Agraham. I scale down my scene to real world geometry, right now the bucket is around 30 cm. As a result, no more such warnings. In the end, liquid has been created. However I still have a question for you maya guru. When I selected the object inside bucket, created liquid, then selected bucket and gravel pile as collider, ran animation, I found no liquid being created. But after imported an bifrost example named "milkpour", ran animation again, liquid being created. I don't know if it's because I messed up some settings when I imported previous models. What's your opinion?

Re: Problems in creating pouring water by using Bifrost

Anonymous — Wed, 18 Nov 2015 03:19:24 GMT

Are you using SP4? Because I'm getting the same warning about memory that I never got before. The no liquid being created issue your having, I have had also. I corrected it being quitting Maya and restarting it. But it's still unusable for me. Its so slooooooowww.

I even made a new scene, made an emitter out of a small box colliding with a plane and I was amazed how slow it was. I really hope its just a bug because I loved using Bifrost it used to be so fast.

I have noticed the plug-in is very touchy and can stop working altogether for no good reason and Maya needs to be restarted.

Re: Problems in creating pouring water by using Bifrost

Anonymous — Thu, 19 Nov 2015 08:42:49 GMT

Hi, there. Yes, I am using maya2016SP4, too. For the memory issue, I fixed it by rescaling down the whole scene. And for the no-liquid one, I had tried two times. In the first time I imported a bifrost example in Bifrost 'get Example' option, then my model began to have fluid. In the second time I created bifrost cache in Bifrost 'Compute and cache to disk' option, then it started to create liquid. I hope it works for you too!