Smoke rendering and lightning in closed rooms

[Svetlin.Nikolov]

Not sure I understand your first question, can you elaborate more on this?

You should just reduce the resolution and it will be okay. You can enable smoke emission from the sources and then use smoke buoyancy to drive the particles up or down.

[abri]

Not sure I understand your first question, can you elaborate more on this?

You were writing about a resolution issue (which I btw do not understand which resolution you exactly mean).
I thought, when my resolution settings might be wrong, then the rendering with a simple opacity curve should also look different, or?

You should just reduce the resolution and it will be okay.

I am not sure which resolution I should change.

You can enable smoke emission from the sources and then use smoke buoyancy to drive the particles up or down.

For simple smoke it's clear, but I was refering to the drag particles, for which I don't know how to apply buoyancy. Also the "ink in water" example does not use any gravity or buoyancy.

[Svetlin.Nikolov]

Hey,

Check again - it's the unit scale that affects opacity, not the resolution. As for the ink scene - just reduce the amount of particles and the grid resolution. The scene does not have gravity or buoyancy, but you can always enable them and experiment. If you discharge smoke from the source together with the particles, the buoyancy will drag the particles along with the smoke - this is why they are called drag particles - they simply use the velocity from the fluid and flow with it. You might want to check the help file and it will become clearer as well

Cheers!

[abri]

yes.. i know.. rtfm.. mea culpa..
therefore i was asking for a demo scene

[Svetlin.Nikolov]

Youuu Maybe @Georgi Zhekov can prepare one with the coffee preset If it goes well, we'll put it in the docs site and youtube

[abri]

I' like to come back to the scale/resolution understanding issue again.

a) the cylinder has a diameter of about 25mm

b) the unit settings of the scene are:

c) the grid settings are:

d) then the opacity need to use foll:


I still don't understand which setting I have to change to bring the opacity values to a different range?

[Svetlin.Nikolov]

Your unit scale seems small enough - then the only thing left is to keep reducing the value of the top of the spike...

[Deflaminis]

Love the updates to Phoenix, very cool. I do agree that a bit more tuts on the opacity curves would be great! Nice work!