Feelin Hot Hot Hot!
Well considering i havent updated in a while i have decided to show you what i have been up to lately. I have basically been renderin fire for the snake scene. As i have managed to animate the snake which i will cover in a another blog pst i had the initial idea of it rising from the flames.
So with the particles i have managed to use the 3d fluid system within maya to create flames. It was extremely challenging because it is very difficult to calculate what you are doing at points because of its bad rendered real time playback. For example, if i wanted to skip to frame 120. The particle system would mess up, because it doesnt have enough time to make the nessecary calculations of the particles properties, thus making a what i like to call “false render.”
So what i did was create a fluid emitter box. This box controls the properties of particles that are being emmited inside. You then place an object shape inside and give it emitting properties so that it can emit particles into this fluid box. Now the fluid box can be used for many things such as water of gas but this time it was to create fire. Alot of technical tweaking and physics had to be addressed because the particles need to be told what to do. Otherwise they simply float and do nothing. So many attributes have to be taken into consideration. Such as bouyuncy, viscosity, air, Tempereture, fuel etc.
Other factors such as resoltution have to be taken into account. The resolution and the quality of the fire needs to be properly optimized before things can go into renhdering otherwise it will take hours. I managed to put the render settings on production quality with a resolution of the camera at about 1024 by 576. But tjhe resolution of the actual particles were 20 by 20 by 20. So imagine thousands of particles rendering at that resolution all at the same time and then smoothed out with production quality anti aliasing. Thats madness!
So here are the videos ready to show to you. The first one shows the emitter and how it works and the second videos is a rough draft of how i would composite the flames. The second video took 8 hours to render 10 seconds of footage!
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