Fire!

[Nemo Krad]

Now personally I don't like the title of this board, but I can't think where else to put this....

I love NVIDIA!

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[Chr0n1x]

Thats the point of this board, to say haha i've done this, and then we bug you for the source code unless its proprietary.

[Nemo Krad]

Well the shader is by NVIDIA. But the code is mine. I still need to refine it a bit as at the moment it is not to generic so I wont post the code yet.

[Chr0n1x]

So thats particles? Using the Million Particles on a GPU system?
Or something else?

[Nemo Krad]

Nope, no particles. It is (at the moment) an number of panel mesh's each with a single texture with noise. 

Here is the comment at the top of the shader

    Volumetric flame effect
    based on Yury Uralsky's "Volumetric Fire"
    http://www.cgshaders.org/shaders/show.php?id=39
   
    This revolves a cross section of a flame image around the Y axis to
    produce a cylindrical volume, and then perturbs the texture coordinates
    with 4 octaves of animated 3D procedural noise to produce the flame effect.

Cool..

[EDIT]
Side profile of the rendered flame now attached..

So you can see I have some work to get it to work in the engine fully. Need to get it to face the camera at all times with a fixed Y plane and also to be able to position it anywhere in the scene other than pos 0,0,0, I suppose I will supply a float3 offset for the shader to use.
[/EDIT]

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[Nemo Krad]

  YEA!

I have the shader so I can now place my fire anywhere in the world.... I will try and get the class written up tonight and drop the example on here. I don't think it will be too compatible with the base HM Engine as my engine has altered a fair bit, but I am sure you guys will be able to get it to fit you Engine Models.

 

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