How to control Fire burning across object

#1

I’ve been learning and practicing how to create fires, watching a lot of tutorials and whatnot. So at this point, I’ve successfully created a fire that emits from an object for example, but I was wondering how I can make a fire that can interact with an object.

Like let’s say I have a doorframe, just a really simple model, rectangles extruded and whatnot. With the knowledge that I have so far, all I can do is make the entire doorframe model act as the emitter so when the animation starts, the entire doorframe lights up at once. But say I wanted the fire to start at the bottom of the doorframe, which would theoretically be made of “wood”, and then ignite at the bottom and burn its way up to the top. How could I control the fire to do that?

Thanks!

#2

Its quite simple, just use a texture on the emitter.

#3

Thanks for the reply, could you expand on it a bit more as I don’t completely follow. A texture on the fluid under its Texture drop down menu? Or on the model emitter or the emitter itself?

#4

Yes, as you wrote before editing your reply, do some research as its very simple. You will understand considering you have done many tutorials and are able to use fluids to make fire.

#5

Do you have any specific resources in mind? Unfortunately there do not seem to be that many available that deal with what I’m looking for, though I’ll keep searching.

Should I be applying a texture to the emitter shape or the emitter itself? Thanks!

#6

Michael,

I don’t want to be rude, but you really are going to have to at least try here.
I have told you already to use a texture on the emitter, yet you keep asking what to do.

How did you emit the fire? Particle Emitter? Fluid Emitter?

You can search Google, you can search CGtalk.

In the time it has taken you to ask repeatedly, you could of searched for “emit fluid from texture in maya” and found numerous tutorials and posts…in fact the first Google result is what you are looking for…as I said its really simple…

Trust me you will learn quicker if you try and don’t expect to be told exactly how to do something.

Hate to be a prick, but am a little tired of the numerous posts here (not only yours) that are basically “I didn’t bother to even search on google or on the forum I am on, so please help me”

Good luck!

#7

Let’s not make assumptions here. I get where you’re coming from - I also tire of seeing posts or comments online when people don’t even bother doing a quick google search to find a simple answer. I’m definitely on the same page as you there, but don’t assume that about everyone.

I don’t need to explain myself in the same that you don’t need to explain yourself, but let’s just be clear: doing hours, to days, to weeks of personal research that still amounts to no results is nothing new to me. However, it doesn’t hurt in this day and age to occasionally have some fast results on a public forum. If I’m asking, it’s obvious I’ve searched already, and I’ll continue searching.

I’m not doing this for you Howard, I’m trying to figure this out for my own purposes, and I’ll continue spending my time to find an answer. If I missed a search result or something that’s clearly obvious, then that’s my fault, but don’t assume that I haven’t tried.

I’ve found a few paid courses or DVDs online now that I think will cover fluids more in-depth, and eventually if I don’t find a solution then I will have to resort to that, but as you said, if it is such a simple task, I’d rather go find a free and quick answer so I can move on.

#8

You don’t even need the google for that. Just type in mayas documentation search field “fluid emit texture”. There you’ll find explicit information about that.

#9

LOL! Now you are being silly… I literally just told you exactly what to Google, that the first result will show you how to do it.

I woke up on the wrong side of the bed yesterday, so here - read about particle emitters and fluid emitters and how to emit from a texture. Dont be afraid to try. You already asked, Do I do it on the Fluid Emitter? So why not try and see what it does? It wont break the computer :wink:

Anyway, read the tutorial in the first google result. Read a few other posts here about how to use a texture to emit particles/fluids.

#10

Yes, thanks for the suggestion of using key words. Never would have thought about that.

That was sarcasm. I’ve done all of that already, since your first post, so I thank you for that. Everything else though is a different story. Everyone has bad days, but it doesn’t excuse your attitude.

Again, if I asked a question, then clearly I need help. I’ve read plenty of links, articles, posts online from Autodesk, tutorials, forums, etc. on the topic of fluid emitters and textures. I did, again, since you first posted. Like your answers though, they’re all pretty vague and I’m still a bit confused on how I can time control the areas of emission. I see other attributes being affected by textures, be it color, shape, characteristics of the fluid, etc.

And if responding to help someone requires too much snarky attitude from you, then don’t respond. I appreciate your help if you do help, but if it really bothers you that much, then just move on.

#11

Perhaps I should of said exactly what I meant which was you are being silly talking about buying a DVD to learn how to do this when it is quite simple… the rest of your post was fine so I am sorry If you got upset.

       You are right though, I probably should not have answered you with the correct answer in my first post.  
       I should not have assumed that since you have the technical ability to create fluid fire, that you also have the knowledge to create something as simple as a ramp or a texture to control where your emission is.  
      
      Then I probably should not of given you the first link in Google that again gives you the answer accompanied by an image showing you the answer. 
      
      I probably should just leave it be and let you wait for someone else to help you since after days of explaining how to learn what to do, you need me to tell you exactly how to do it.
     
     But since I really am not that much of a Prick and actually enjoy helping people, I give in.  
     
     If you emitted Fluids from a Particle Emitter, at the Bottom you can use a Ramp or a Texture to control where and when you emit from.  You can either animate the Ramp to reveal, or you can make an Animated Image Sequence in something like Nuke and use that. (Beware you will definitely need to search here for the hack that makes sure maya uses the Image Sequence correctly)...but in your case an animated Ramp will work fine I am sure.  Just make sure your UVs are ok.
     
     Pretty much the same thing goes if you only used a Fluid Emitter, which again this image explains (which I told you was in the first [google result located here](http://www.thepiratejournals.com/?p=337) - )  
    
    [img]http://www.thepiratejournals.com/wp-content/uploads/2011/07/menu3.jpg[/img]
   
   So.. as you wrote in your replies days ago, yes you should use it on the Emitter, as that is where you Emit from.  If you had simply taken the time to try or read up on this, as I said, it wont break the computer ;) you would of seen that you can use a texture or a ramp and been on your way.

The reason I appear ‘snarky’ to you is because I have spent years of my life learning through plenty of research but mostly years of trial and error (like I was trying to get you to understand and do for yourself so you can learn) and am tired of people who haven’t even learned to crawl before diving into the shallow end.

   Hopefully you know enough Maya to use an animated ramp or texture on the emitter without me having to go into more detail.  If not I suggest you learn the basics of Maya and Dynamics before diving into something much more technical such as Fluid Fire.
  
  On that note I am moving on... good luck!

   [img]http://www.thepiratejournals.com/wp-content/uploads/2011/07/menu1-300x142.jpghttp://[/img]
#12

All,right Horward is a very Senior Artist,so dude pls treat him with all respect.

Now,Dont take my words wrong.It happens some task are easier but if u don’t have particular knowledge of “Click” it would probably letu frustrate.

Any how the simple trick is the wooden object should have Uv set to utilize a Texture.

What u can do is.You are required to emit volexls of Density and heat from texture only.You can use Fluid emitter and just right there an option is to use texture to control emission of Voxels.

U can quickly use a Ramp method to Drive the color-entry list position and can use set key according to the frames.with that the Color white should emit density+Heat,which is quite apparent because urs density emitter would also start emitting voxels when set to “1” .Same u r now doing if u check the Texture color value which is default = 1.On those surface of poylgon where this value is one would emit voxels.

Now,Junior Brother i think u can do this…Dont mind my words ok …Wish u Good Luck.