in this second test, (i'll sort of repeat myself from the vimeo description) I wanted to push the values too far (in delta as this test was built with version 1.27 and I say that half joking since peter made 2 revisions to version 1.27 w/o versioning)
Anyway so I wanted to push the delta further than I was to really see what happens. Its still cool but it gets a little rough in the movements compared to the original
check out this fire reference
fire starts at 1:16, but my point in showing it is to get a sense of how high we really can/need to push the delta to achieve realism.