Tim Nikias v2.0 wrote:
>>i know, picky, pickie
> 
> 
> That's how it goes when you're asking for comments. :-)
> 
> 
>>grass surface does not appear flat, shouldn't it puddle up a bit?
> 
> 
> It would, eventually, but the velocity of the particles and the heightfield
> on which they move isn't exactly the kind of terrain which forms puddles.
> That aside, the particles don't use cohesion forces and thus wouldn't form
> puddles or stick together like actual water-droplets would. But that'd be
> over the top for a simple example anyway.
> 
> 
simple examples have a way of becoming large oaks

could you change the characteristics of the water particle on the fly, 
once below say 0.25 height of stone ?

very large :-) for next bit

get your kids to play with a hose and an up turned bucket on your lawn 
and observe.

pick a sunny day
(not for about 3 months in uk, apart from which no lawn, no kids :-)

>>as an aside, i wish i could even guess as to how to approach even trying
>>to do something like this
> 
> 
> It's all practice and experience. Once you've became accustomed with some
> different animation techniques and formulae for
> animation/simulation/calculation, it just moves on from there.
> 

statement of opinion from a lapsed/used to be 'good at maths' person, 
intended as a complement

stephen

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