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Fire column

Posted: Wed, 12th Jan 2011, 12:59pm

Post 1 of 11

Azulon'sAssassin

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I would love to have a fire column with a skinny beginning and a rounded end. It could blast out of hands or feet. Any help?
Posted: Wed, 12th Jan 2011, 1:48pm

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Helge

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Maybe this could be done with the particle engine. Do you have any images or a sketch of the effect you are looking for? Right now, I'm not exactly sure how the fire column should look like.
Posted: Wed, 12th Jan 2011, 10:19pm

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Azulon'sAssassin

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I'll look for a picture. It is in an animated show, so I'm not sure if it can be "realafied" confused Anyway, I'll look for a picture.
Posted: Wed, 12th Jan 2011, 10:42pm

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Azulon'sAssassin

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Ok. so here's what I was sorta going for. Try to imagine the big arc of flames straightened out and with a rounded end.

http://74.125.67.100/imgres?imgurl=http://images4.wikia.nocookie.net/avatar/images/thumb/a/a4/Azula-enhanced.png/250px-Azula-enhanced.png&imgrefurl=http://www.comicvine.com/princess-azula/29-47768/&usg=__XoO1N5H3rnv-RMg9iOYPZ_1zM7g=&h=188&w=250&sz=79&hl=en&start=40&zoom=1&tbnid=KYUfjKlt5ud4gM:&tbnh=150&tbnw=200&prev=/images%3Fq%3DAzula%2Bfirebending%26hl%3Den%26biw%3D1276%26bih%3D839%26gbv%3D2%26tbs%3Disch:11%2C1325&itbs=1&ei=Ri0uTZjgMoT48AbH6dWYCQ&biw=1276&bih=839&iact=rc&dur=203&oei=KykuTaSAD4H98Aa4gp21Cg&esq=5&page=3&ndsp=21&ved=1t:429,r:3,s:40&tx=121&ty=91




Also, would it be possible to do an explosion like this? (It starts on the ground an expands out and up.)



http://74.125.67.100/imgres?imgurl=http://img844.imageshack.us/img844/8547/vlcsnap2010112815h55m05.png&imgrefurl=http://forums.comicbookresources.com/showthread.php%3Fp%3D12255046&usg=__bwBHgVMU4wDJJba8whMantrxpG4=&h=384&w=512&sz=334&hl=en&start=149&zoom=1&tbnid=RY5mjP4eHbHBrM:&tbnh=168&tbnw=232&prev=/images%3Fq%3DAzula%2Bfirebending%26hl%3Den%26biw%3D1276%26bih%3D839%26gbv%3D2%26tbs%3Disch:1&itbs=1&iact=rc&dur=281&ei=Gi4uTcvNEoL58Aaz5LmLCg&oei=KykuTaSAD4H98Aa4gp21Cg&esq=8&page=8&ndsp=20&ved=1t:429,r:14,s:149&tx=26&ty=161


Just ignore the stupid grey smoke. I only really want the explosion...
Posted: Wed, 12th Jan 2011, 11:34pm

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Helge

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Maybe you could use the particle effect presets which come with VisionLab Studio. With a few adjustments (color, speed, ...) this might work quite well.

For the fire column the preset "Flame Thrower Redux" might be a nice choice:


With a few adjustments you might be able to use the preset "Particel fire explosion" for the explosion:


(In order to make it look as if the explosion stays above ground, you might want to add a mask to the bottom of that effect.)
Posted: Thu, 13th Jan 2011, 3:06am

Post 6 of 11

Azulon'sAssassin

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I'm such an idiot... Anyway, thanks! I've tried the flamethrower redux, but nver thoguht to do what you said. Thanks!
Posted: Sat, 15th Jan 2011, 3:11pm

Post 7 of 11

Azulon'sAssassin

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Oops! Three more question. How could I get this:
http://74.125.67.100/imgres?imgurl=http://www.deviantart.com/download/93267742/080731_Agni_Kai___Azula_by_thefenrir.jpg&imgrefurl=http://www.deviantart.com/deviation/93267742/&usg=__QEoEiD-Pnof31OPm1TL-YUYf03Y=&h=648&w=1152&sz=578&hl=en&start=0&zoom=1&tbnid=FAKlIRgekIE4vM:&tbnh=101&tbnw=180&ei=bbYxTbrXJ4Ks8AaLwMntCA&prev=/images%3Fq%3DAzula-Final%2BAgni%2BKai%26hl%3Den%26sa%3DX%26gbv%3D2%26biw%3D1260%26bih%3D839%26tbs%3Disch:1&itbs=1&iact=hc&vpx=106&vpy=88&dur=4391&hovh=168&hovw=300&tx=196&ty=86&oei=ELYxTd6ECcL-8Aasx7zQCA&esq=15&page=1&ndsp=30&ved=1t:429,r:0,s:0

http://74.125.67.100/imgres?imgurl=http://1.bp.blogspot.com/_udWlKsgbKY8/SIkJiRK44KI/AAAAAAAAAQw/xE8Uc5IcowA/s400/18%2BFire%2Bvs%2BVire.JPG&imgrefurl=http://5-color-commentary.blogspot.com/2008/07/review-avatar-last-airbender-sozins.html&usg=__EQNKHdeIP6jFkbL7oJ16pks2EUg=&h=303&w=400&sz=21&hl=en&start=0&zoom=1&tbnid=zLJnjnIlWKSAvM:&tbnh=134&tbnw=177&ei=ELYxTd6ECcL-8Aasx7zQCA&prev=/images%3Fq%3DAzula-Final%2BAgni%2BKai%26hl%3Den%26sa%3DX%26gbv%3D2%26biw%3D1260%26bih%3D839%26tbs%3Disch:1&itbs=1&iact=rc&dur=375&oei=ELYxTd6ECcL-8Aasx7zQCA&esq=1&page=1&ndsp=30&ved=1t:429,r:5,s:0&tx=113&ty=90







The flames are being shot out of her hands and feet and are propelling her along the ground.

How can I get lightning that can follow my finger in an arc, Like this:



http://74.125.67.100/imgres?imgurl=http://i.ytimg.com/vi/5u5GKhOTJSQ/0.jpg&imgrefurl=http://arcusepito.com/index.php%3Fkey%3DBENZIN&usg=__SCDlkSA0Q09pnzsgNUfPuyNmrZs=&h=360&w=480&sz=14&hl=en&start=92&zoom=1&tbnid=tOG2SMvyKOjgsM:&tbnh=153&tbnw=204&ei=-bYxTfaIMcGC8gbuksyUCQ&prev=/images%3Fq%3DAzula-Final%2BAgni%2BKai%26hl%3Den%26sa%3DX%26gbv%3D2%26biw%3D1260%26bih%3D839%26tbs%3Disch:10%2C2691&itbs=1&iact=hc&vpx=770&vpy=506&dur=125&hovh=194&hovw=259&tx=160&ty=94&oei=ELYxTd6ECcL-8Aasx7zQCA&esq=5&page=5&ndsp=20&ved=1t:429,r:8,s:92&biw=1260&bih=839


Then to form a circle like this:


http://74.125.67.100/imgres?imgurl=http://img.youtube.com/vi/MEWw0LrCPoM/0.jpg&imgrefurl=http://www.gatopardos.com/tag/azula/orderby-viewCount/page1.html&usg=__m5l0mP816CMIk0gs_ggEUHmGx3c=&h=360&w=480&sz=15&hl=en&start=0&zoom=1&tbnid=uIRkl5rUYzYk8M:&tbnh=133&tbnw=179&ei=yLcxTcKyMo-u8AbUzKTPCA&prev=/images%3Fq%3DAzula-Final%2BAgni%2BKai%26hl%3Den%26sa%3DX%26gbv%3D2%26biw%3D1260%26bih%3D839%26tbs%3Disch:1&itbs=1&iact=rc&dur=281&oei=ELYxTd6ECcL-8Aasx7zQCA&esq=5&page=1&ndsp=30&ved=1t:429,r:28,s:0&tx=100&ty=43




Yay! Last question!





http://avatarofang.blogspot.com/2010/04/azula-when-fighting-with-fire-bending.html




How could I get the effects in the frist and third pictures?



In the first, her legs are tucked in, she jumps in the air does some front filps (really fast) and then blasts it out of her feet. How could I get the flames to spin like that?



In the third picture, the fire follows her foot in an arc. How could I go that? I know there's a fire circle present, but I only have the demo so I can't download it. Please help. (Oh, and I SWEAR those were the last questions...)
Posted: Sat, 15th Jan 2011, 11:10pm

Post 8 of 11

Helge

Force: 1600 | Joined: 16th Jan 2010 | Posts: 116

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Hi,

in my opinion these are quite hard to do with a 2D particle engine. But if you are OK with a little extra effort, some of this should also be possible this way.

As the effects are quite complex it is kind of impossible to write down exact instructions. But you will find some general thoughts below smile

There are a few things which might be useful for all the effects you are going to do:

1: As parts of the effect will go behind the person, you will need a lot of masking. It would also be great to have blue/green screen footage of your actor to make this easier. (Btw. do you already have a solution for making the actor 'fly'?)

2: As the source of your particles (e.g. hand, foot, ...) is moving, the emitters origin will need to be animated.

3: In order to follow the actors movement in a realistic way you might also have to animate the particle emitters direction.



---

Question 1:
For this you will need several particle effects. Animate the emitters in order to follow movement and orientation of the hands and feet. If you use a green/blue screen to make your actor fly, you might also be able to have the effect go behind the actor by using additional emitters. In any way - masking will help a lot. A nice start for the emitters might again be the flame thrower preset.

Question 2:
For this you will need to copy an actors hand movement. This way the emitter will always be at the same spot/position as the hand. If you reduce the particle speed and adjust the emitting direction accordingly, the particles should stay on/near the 'path' the hand took. In order to make this work the particles must be "free from origin" - which can be activated within the emitter settings.

One additional hint: fast movements will be harder to do than slow ones. I had problems with a fast moving emitter before:
http://fxhome.com/forums/viewtopic.php?t=42239

Question 3:
I think this is quite similar to the first two effects. This might also be possible by animating the emitters origin.

---

The answers above focus on particles only. Of course there are countless other ways to do things like that. E.g. if you have access to useful stock footage this might make things a lot easier for you. And of course, if you have some time, you can always hand paint some frames of effects within your favorite image editor smile
Posted: Wed, 19th Jan 2011, 9:16pm

Post 9 of 11

Azulon'sAssassin

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Wow, thanks! And, yes, I do have a way to make them fly. Anyway, thanks again!
Posted: Sun, 23rd Jan 2011, 8:22pm

Post 10 of 11

Azulon'sAssassin

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Hey, I meant to ask:

Are the instructions you typed for the picture you posted? Because that is a really cool effect.
Posted: Tue, 25th Jan 2011, 8:55am

Post 11 of 11

Helge

Force: 1600 | Joined: 16th Jan 2010 | Posts: 116

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You are right. The image has been created by animating the particle emitters origin point and emitting angle. Of course, it is just a quick example I did for this post (that is why the 'tail' seems to be broken in the middle wink), but I think it is enough to visualize the effect.