Greetings fellow Blenderheads. I am not here to whine. I’m going to make some realistic fire even if it kills me. I’ve already done a lot of work over the past 3 days. You are all invited to help me. When I completely solve the problems I’m faced with I promise to make the MOST definitive video tutorial for realistic fire in Blender the world has ever seen.
Here’s what I KNOW:
- Cloud textures are three-dimensional. Multiple planes mapped to the same coordinates will act as a single “volume”
- Halo materials don’t follow this rule - which makes me very sad.
- Fire behaves like a fluid. The base mesh really should be generated by the fluid simulator.
- The fluid sim system does not have the ability to delete fluid particles after a certain period of time. They’ll need to deleted by other means.
- Jahka’s new particle system offers a lot of new options that are useful…
- Billboard particles (do not yet support control over size)
- (Does not yet allow control over transparency)
- Does support child spawning - which is good for embers
- Fire distorts distorts images behind it. Heated air has a different IOR than cool air. I read somewhere that number is lower than 1. That isn’t possible since the IOR of a complete vacuum is 1. We need to find that value.
- Radiosity can be applied to the render - not just precalculated. I have gotten beautiful results from applying emitted light from fluids with the radiosity button switched on. However, it turns the mesh completely white. The best rendered fire effects need radiosity disabled for that material. I tired making a duplicate, but it uses the same mesh, and meshes are bound to materials… So I can’t have BOTH until I figure something out.
- I seem to have lost the speed of my fluids along the way… maybe it was the addition of the displacement modifier…
- BUG!!! : Displace materials behave strangely when you enable radiosity rendering.Note:These images are on a temporary server until I get my own server’s FTP access back. So they might disappear.
Note: I had much much cooler looking fire that I worked on all last night, and all this afternoon (left the PC on) but Blender crashed and the autosave failed. sigh