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Question to Particular 2 - Smoke

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Sebastian StöhrQuestion to Particular 2 - Smoke
by on Oct 17, 2011 at 9:28:46 pm

Hi guys,

I've a question about Particular 2.
I've made a tutorial for candle smoke and it looks amazing! But I want to make an effect like in Battlefield 3. A short explanation:
There is a black screen and blue smoke comes from the bottom of the screen from side to side. But my candle smoke only comes from one point.
How can I make that the smoke comes over the entire line from left to right and not only from the one point? I cant find the setting in Particular.

I made a little pic for better understanding what I mean :)

bluesmoke.jpg


PS: and sry for my english^^


greetings


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Walter SoykaRe: Question to Particular 2 - Smoke
by on Oct 17, 2011 at 9:48:59 pm

Particular has several emitter types. Instead of using a point emitter, you might try a box emitter. Make it wide and short (and adjust the depth to suit), and place it just below the bottom of the frame.

Walter Soyka
Principal & Designer at Keen Live
Motion Graphics, Widescreen Events, Presentation Design, and Consulting
RenderBreak Blog - What I'm thinking when my workstation's thinking
Creative Cow Forum Host: Live & Stage Events


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Michael SzalapskiRe: Question to Particular 2 - Smoke
by on Oct 17, 2011 at 9:53:35 pm

Darn me for having multiple windows open! Walter wins!

- The Great Szalam
(The 'Great' stands for 'Not So Great, in fact, Extremely Humble')

No trees were harmed in the creation of this message, but several thousand electrons were mildly inconvenienced.


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Walter SoykaRe: Question to Particular 2 - Smoke
by on Oct 17, 2011 at 9:56:29 pm

You and I seem to do this quite often. Your turn next time.

[Michael Szalapski] "Darn me for having multiple windows open! Walter wins!"

Ha! I only had one tab open. Single-tasking for the win!

Walter Soyka
Principal & Designer at Keen Live
Motion Graphics, Widescreen Events, Presentation Design, and Consulting
RenderBreak Blog - What I'm thinking when my workstation's thinking
Creative Cow Forum Host: Live & Stage Events


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Sebastian StöhrRe: Question to Particular 2 - Smoke
by on Oct 17, 2011 at 10:04:21 pm

Hehe .. big thanks to u guys. Now it looks really nice. But its very blurred. Does anyone have a tip for making the smoke more sharper?

Particular has soooo much settings and I want to learn all about it :D


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Walter SoykaRe: Question to Particular 2 - Smoke
by on Oct 18, 2011 at 1:44:13 am

[Sebastian Stöhr] "Now it looks really nice. But its very blurred. Does anyone have a tip for making the smoke more sharper?"

Can you post a screen shot showing both the blurred smoke and the AE UI with your Particular settings exposed?

Walter Soyka
Principal & Designer at Keen Live
Motion Graphics, Widescreen Events, Presentation Design, and Consulting
RenderBreak Blog - What I'm thinking when my workstation's thinking
Creative Cow Forum Host: Live & Stage Events


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Sebastian StöhrRe: Question to Particular 2 - Smoke
by on Oct 18, 2011 at 6:08:58 am

Here it is :)

comp10000426.jpg
settings.jpg


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Walter SoykaRe: Question to Particular 2 - Smoke
by on Oct 18, 2011 at 1:57:53 pm

Do you have depth of field enabled on your comp's camera?

Walter Soyka
Principal & Designer at Keen Live
Motion Graphics, Widescreen Events, Presentation Design, and Consulting
RenderBreak Blog - What I'm thinking when my workstation's thinking
Creative Cow Forum Host: Live & Stage Events


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Sebastian StöhrRe: Question to Particular 2 - Smoke
by on Oct 18, 2011 at 4:49:55 pm

No, I'm only playing arround with one solid and Particular applied to it.


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Walter SoykaRe: Question to Particular 2 - Smoke
by on Oct 18, 2011 at 7:00:24 pm

Your auxiliary particles have their Feather property set to 100% -- this will soften them. Dial that down and they should sharpen up a bit.

By the way, you might try the Cloudlet particle type instead of Sphere -- it's essentially a cloudy/smoky blog of blended spheres.

Walter Soyka
Principal & Designer at Keen Live
Motion Graphics, Widescreen Events, Presentation Design, and Consulting
RenderBreak Blog - What I'm thinking when my workstation's thinking
Creative Cow Forum Host: Live & Stage Events


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Sebastian StöhrRe: Question to Particular 2 - Smoke
by on Oct 18, 2011 at 7:26:12 pm

Heyyy thx!! Now it looks really nice. For the rest I try some settings.
But the smoke comes up very fast. I try to change some Velocity settings, but no changings.

The last question for this topic is: How can I reduce the speed at which the smoke rises?

Thx so much for your help!


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Walter SoykaRe: Question to Particular 2 - Smoke
by on Oct 18, 2011 at 7:33:47 pm

There are a couple things there that are contributing to the fast speed of the smoke.

The Physics Time Factor is set to 2. This will double the speed of the whole simulation. You can halve the speed immediately by setting the PTF down to 1.

Gravity is -400, which means the particles are being pulled up pretty hard. Raising this number (moving it closer to zero) will slow down the smoke's rise.

Your particle emissions may be a little high, too; lowering the particles/sec may help slow down the animation, but if you make it too low, you'll lose the fluid smokey effect.

The Particular documentation is really good at explaining what every parameter does (if you can find it). In the Effect Controls panel, click "Options..." then "Help" for more in-depth explanations.

Walter Soyka
Principal & Designer at Keen Live
Motion Graphics, Widescreen Events, Presentation Design, and Consulting
RenderBreak Blog - What I'm thinking when my workstation's thinking
Creative Cow Forum Host: Live & Stage Events


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Sebastian StöhrRe: Question to Particular 2 - Smoke
by on Oct 19, 2011 at 10:57:44 am

That sounds good. I will try that when I'm at home from work.

And again big thx to you! ;)


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Michael SzalapskiRe: Question to Particular 2 - Smoke
by on Oct 17, 2011 at 9:52:04 pm

Instead of using a point emitter in Particular, use a box emitter and make it much wider.

- The Great Szalam
(The 'Great' stands for 'Not So Great, in fact, Extremely Humble')

No trees were harmed in the creation of this message, but several thousand electrons were mildly inconvenienced.


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