Hi! I am currently trying to create a huge smoke simulation like from a burning oil rig. Unfortunately I could not find any way to control the dissipation rate of the smoke. So I have not been able to keep the smoke in a specific boundary, it just grows and grows… I guess I could use a fixed contai…

Ivaylo… [image] Backwards compatability increase the conservation, 40-100 may be better Yeah, will do that… [image] Backwards compatability increase the conservation, 40-100 may be better - be sure that there are holes in the building, otherwise there will be no outgoing path for the air…

the default conservation method is better.

one more very important suggestion - use FT advection method! it conserves the smoke strongly, unlike the classic method

[image] weird DR + realflow if the conservation is important (i’m not sure about this, just a guess) then the default one is better. if the conservation is not important, i.e. if the smoke propagates anyway try with buffered, it produces more fine details Yes, conservation is important (if con…

i did a fast setup to test my suggestions, and i saw that the conservation is really important, so no way to use any other, you must use smooth with high quality, 100 is good enough. that why i changed my post with “if the conservation is important”. the scene units should be not a problem.

[image] Ptex Normal Displacement workflow i did a fast setup to test my suggestions, and i saw that the conservation is really important, so no way to use any other, you must use smooth with high quality, 100 is good enough. Thank you Ivaylo. Is it possible that you send me your test for max …

sure, here is the scene. it is not tested at high resolution, but at low res (100k cells) it works fine. btw there are some hidden conservation options, and i think they can be useful for this scene. try that: select the simulator and type in the max listener $.refltype=11 this will enables a hid…

btw, i tried the trick $.refltype=11 and it works much better, with quality only 20 it produces perfect result and because of this is about five times faster. here is the scene with the correction. now it runs with about 10 sec per frame at 6 Mcells, after 30 min you have the second floor in smoke b…

[image] Backwards compatability btw, i tried the trick $.refltype=11 and it works much better, with quality only 20 it produces perfect result and because of this is about five times faster. here is the scene with the correction. now it runs with about 10 sec per frame at 6 Mcells, after 30 min y…

Another option to get phx better, but it is not anyhow commented :smile: Love it :smile:

Thick Smoke Dissipation

V-Ray V-Ray Common Public

Sascha_Selent July 23, 2012, 3:06pm 17

Thank you Ivaylo.

Is it possible that you send me your test for max 2012?

Sascha

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Thick Smoke Dissipation

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