[Soc-2012-dev] Weekly progress report #3 - Smoke Simulator Improvements

[Miika Hämäläinen]

> 1) What you did this week
I coded basic implementation of moving domain support. When enabled, 
simulation data is shifted matching domain object movements so that 
fluid remains still while actual domain area is moving.

It worked better than I expected so I decided to go one step further and 
implement dynamic scaling too. That way domain size and resolution 
adjust to only cover areas where smoke is, making larger simulations 
faster and require less memory/space. Additional domain area is 
added/removed if smoke moves too close/far from edges.

Now I have added initial functions to resize and shift domain data 
on-the-fly and I'm currently rewriting smoke emission code so that it's 
possible to "emit" smoke outside the active domain area - allowing 
domain to expand there. After that it's still missing rendering support, 
which will require investigation.

> 2) What you plan to do next week
I'm going to finish this week's work. When I'll get the initial 
implementation done it will still require lots of testing, debugging and 
tweaking.