請問如何制作鬼火？

[guyfire]

請問如何制作鬼火？

[stantang]

What kind of 鬼火？ You have to give more info on what're try to get before we can help...

I found it funny that your nickname is "guyfire" and from "[火焰設計室] [Guy Fire Studio]" but doesn't know how to create fire?! :p

[Wolf]

He he, that's funny.

我雖然聽過鬼叫，但未真正確定見過鬼火（有次見過“怪”火，不過唔知系唔系“鬼”火）。我捻鬼火都系同其它火一樣甘做啩？只要個火把飄下飄下埋有鬼質囉。

I really get a kick out of hanging out in this forum.

[guyfire]

差不多！
我想的只是有一個火在空中飄浮，沒有其他東西托著，且是不同顏色的。
請問有沒有這個做法？

[LoGao]

簡單o既做法
create 一個 sphere
將sphere o既 primary visiblity off o左佢
再o系個sphere 度放 fire
咁咪有個火o系度飄,無o野托囉.
顏色都可以改

[guyfire]

怎樣在 sphere 放“火”？
貼 texture or ......

[h2o]

visor 裡面嘅 default fluid 都唔啱使? 有 fire, 有 flame, 又有 turbulent flame......

我唔系 effect 人, 所以得呢d"屎q"

[eidosyam]

make painttable for nurbs sphere
Get brush
click fire in visor ,
close visibiltiy
i try try...

[stantang]

怎樣在 sphere 放“火”？
貼 texture or ......

Select the sphere, go to Dynamics-->Effects-->Create Fire. Then you can change the color ramp, etc... This is the easier way.

If you want more control over the shape of the fire, you can model the fire and make it softbody, apply some forces to it, then map a fire texture on it. Here is a tutorial for that: http://www.thegnomonworkshop.com/tutori ... andle.html

IF you don't like any of the above method, try Maya Fluid. Like h2o said, go to Visor then click Fluid Example tab, there's a folder called Fire, right click on one of them to import. Beware that, Maya Fluid canbe both easy and difficult, and the feedback is slow if you have a slow machine...

[guyfire]

謝謝各位的回覆！
各位所述的方法我也試過，但未達到的心中的“火”。
最接近的方法是用 Maya 中的 Creat Fire ，但這效果的底部過散，想要有較實的球型感覺。
不知可否做到呢？

[stantang]

最接近的方法是用 Maya 中的 Creat Fire ，但這效果的底部過散，想要有較實的球型感覺。
不知可否做到呢？

You can change the "Fire emitter type" to Directional point or Omni-directional point instead of using "Surface", this way you will get more particles coming from the center of the sphere (the emitter) instead of on the sphere. Also remember to play with "particleCloud" setting, play with blob map can help to change the shape. Remember the "Create Fire" function is just a shortcut for to create fire-like particle, you can apply fields or other particle related knowledge on it.

[raf]

用paintFX的火~

[guyfire]

可以了！
還有我想問 Directional 與 Omni 的分別？
以及怎樣調整它的范圍？如火的長闊高，或火是上小下大。

[stantang]

可以了！
還有我想問 Directional 與 Omni 的分別？
以及怎樣調整它的范圍？如火的長闊高，或火是上小下大。

Omni emitter will emit particles in all directions; if you want the particles to emit towards only one direction, use "directional" emitter. For the length of the fire, you can play with the "Fire life span" of the particlesShape. For width or 上小下大, adjust the "Flame Start/End Radius".

[guyfire]

若要向某方向發射指定范圍的 particles 呢？
“上小下大”的意思是火焰愈上愈小、愈中間愈多火焰，形成上角下圓的形狀 (水滴型，像前數則中 tutorial 的形狀，但要用 Maya 的 Create Fire) 。
請 stantang 再次解答我的疑難。