New answers tagged image-manipulation
You probably need a 3D modeling tool that can emit flames and smoke. That fire is actually more smoke-y than fire. Then create a rough sketch of the model, and simulate the burning. Now, the more realistic your simulator is, the better it will look, obviously. The best simulators use very complex fluid simulation to achieve good results. E.g. see this ...
The best bet is to choose some software that has a demo and try it out. There is a wide variety of software available and the best choices depend a lot on what you want to accomplish. The more advanced software is harder to use but will do a better job overall. Other software does it very easily, but doesn't do as good of a job. Personally, I used to use ...
there are lot of good freeware and licensed soft. I recently use Sqirlz Morph (freeware on Windows) that allow to morph several source together, as you specify, with relative good and fast result (for my point of view and constraint). There is several output format allowed from still image to video sequence (without sound :-D).
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