RF 2012 Bugs

Aniki
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Re: RF 2012 Bugs

Post by Aniki » Wed Oct 05, 2011 1:19 pm

no, its not about the emitting from the plane but collision detection.

It did work before, in RF5 just fine, without any issues.

And by the way, I am working in real Scale, when I want to do drops of 1 cm in size, this is the plane with square size 2 cm.

Emitting RF5 also works fine and only in one direction, so you can see that its still a bug inside RealFlow 2012.

Please fix this soon, Luis ;)

Aniki
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Re: RF 2012 Bugs

Post by Aniki » Sat Dec 17, 2011 8:20 pm

Aniki wrote:no, its not about the emitting from the plane but collision detection.

It did work before, in RF5 just fine, without any issues.

And by the way, I am working in real Scale, when I want to do drops of 1 cm in size, this is the plane with square size 2 cm.

Emitting RF5 also works fine and only in one direction, so you can see that its still a bug inside RealFlow 2012.

Please fix this soon, Luis ;)
still not working, I really need this fixed soon, or I will have to switch softwares..

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FlorianK
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Location: Cologne, Germany

Re: RF 2012 Bugs

Post by FlorianK » Sun Dec 18, 2011 4:33 pm

Working in "Real Scale" inside Realflow is a bit cumbersome, as long as this isn't a few meters.
Scaling down geometry like you did in your scene makes Realflow behave unpredictable since come calculations aren't working precisely, anymore. The Solver appears to be designed and optimized for about the size of the Realflow grid and above, but it gets into precision issues at that tiny scale.

Realflow's standard Grid unit is one meter, and this is also the scale the force Deamons are set up for by default. Instead of scaling down your geometry, you can scale up the forces globally in order to recreate the appearance of real world scale under Deamon Force Scale > Scale Options for Particle Fluids. Doing so, your scene will work.
Keep in mind stronger gravity will make your particles move faster, so you might need more substeps to retain a working collision detection.

There is also a widely- known problem with Realflow's collision detection and single-walled objects, such as planes. It sometimes doesn't work, so replacing your plane with something two-walled, e.g. a cube could work better in your situation.

Aniki
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Joined: Fri Jun 25, 2010 10:52 am
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Re: RF 2012 Bugs

Post by Aniki » Sun Dec 18, 2011 5:39 pm

Well, it worked flawlessly in RF5 and below all the time.. for me to have any gain by using RF 2012, this issue has to be fixed, and fast..

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