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CFL condition limited to 10? - Printable Version

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CFL condition limited to 10? - Jordan - 01-11-2011

Why is the CFL condition limited to 10? I understand this is the amount of voxels the velocities need to travel before Fume does another Simulation step. Why is it limited?


Re: CFL condition limited to 10? - sitnisati - 01-12-2011

Hello,


More than 10 voxels in a step could be unaccurate. I can increase this limit to 20 tops.
For previews, you can limit number of simulation substeps to 1 for faster sims.

Kresimir


Re: CFL condition limited to 10? - FabianB - 01-13-2011

Correct me if I'm wrong, but isn't it possible to "cheat" this limit by just keyframing the value and modify it in the curve editor to a higher value?
At least it works for vorticity.

cheers,
Fabian


Re: CFL condition limited to 10? - sitnisati - 01-14-2011

Fabian, you are correct.
Values are limited in the UI and plugin does not perform any clamping internally (abuse it on your own risk Smile ).

Kresimir


Re: CFL condition limited to 10? - FabianB - 01-14-2011

sitnisati Wrote:Fabian, you are correct.
Values are limited in the UI and plugin does not perform any clamping internally (abuse it on your own risk Smile ).

Kresimir

Big Grin Nice! I was always wondering about this one! Actually it works very well, at least for vorticity! Just a thought on the new update, it would be great if you would allow a higher max value for the vorticity. Something like 3 would be great, this would help a lot for scenes with a low timescale. Although setting the value in the curve editor works, it's sometimes a pain to click through all of the parameters to see what your actual value is, instead of just looking at the ui.

Fabian


Re: CFL condition limited to 10? - sitnisati - 01-18-2011

Well, in some cases parameters can create simulation that are out of control so parameters are limited. Otherwise we would be getting many emails from angry customers Smile

I think we can add some hidden MXS callback that will allow you to abuse it Smile

Kresimir


Re: CFL condition limited to 10? - Jordan - 01-19-2011

perhaps an expert mode checkbox that takes these limits off and exposes the systemScale property Wink


Re: CFL condition limited to 10? - FabianB - 01-19-2011

Jordan Wrote:perhaps an expert mode checkbox that takes these limits off and exposes the systemScale property Wink

Yeah, that would be great! Perhaps with a little skull icon next to it. Smile


Re: CFL condition limited to 10? - jrand - 01-19-2011

Jordan Wrote:perhaps an expert mode checkbox that takes these limits off and exposes the systemScale property Wink

Just write a script Jordan...I know you know how Big Grin


Re: CFL condition limited to 10? - Jordan - 01-19-2011

jrand Wrote:
Jordan Wrote:perhaps an expert mode checkbox that takes these limits off and exposes the systemScale property Wink

Just write a script Jordan...I know you know how Big Grin

Im just thinking of everybody else Wink


Re: CFL condition limited to 10? - jrand - 01-20-2011

haha, you Aussies are always so kind Smile (I do mean that with sincerity BTW)

I like the skull and cross bones button idea! This of course would have to be a secret button, that is only accessed through a large combination of right-click, alt, ctrl, shft combos Big Grin


Re: CFL condition limited to 10? - sitnisati - 01-25-2011

John, now I am worried.
I am willing to add a general MXS parameter that will be named allyourbasearebelongtous that will unlock everything in FumeFX. Wait and see Smile


Re: CFL condition limited to 10? - jrand - 01-25-2011

Quote:... that will be named allyourbasearebelongtous

haha! the super parameter Big Grin :VOPI I love it, Fume domination!


Re: CFL condition limited to 10? - FabianB - 01-25-2011

I love secret super parameters! Haha that should be awesome! Big Grin :M