@Ohadgfx re: > how i make temperature map?
@Gaxx re: > How do you generate temp map?
This just the fire render, at least in the example shown on the video. So, two options here. Either enable Render Elements and select FumeFX Fire, or simply set your smoke color to completely black and render out directly (we don’t need the alpha channel of the fire, as we comp over the top of the smoke via our engine’s particle shader).
At CIG, we only need the fire pass as a greyscale, and we then map this to a Black-body/heat gradient in our particle editor. So the most important thing for us when rendering out the fire pass is that there is sufficient noise/detail in the frames. I find this one of the trickiest parts to master, as it’s all too easy for the fire to bloom out all the detail in the texture - especially if using multiple scattering.
@Gaxx re: > Do you generate all those passes in just one render or you render multiple times with different settings?
For sure, the less often you need to press the render button, the better! Personally I use Backburner to send my renders to a separate PC. The benefits of this are obvious; I can queue up my various passes, plus it frees up my main PC so I can continue with other tasks.
You can see the exact amount of passes we end up with in the original video link but we basically need RGB smoke x2 (for normal and diffuse), fire (for heat), velocity (for flow map) and alpha (for, you guessed it, alpha!)
I hope that makes sense