> Okay, I'm saying your code has an added functionality--  "some sort of
> wind"-- as you say.   To show off this bell and whistle, put an object
that
> will give the viewer a reference point for the wind, such as a fan.  Then
> the viewer will be more impressed as he or she may understand and expect a
> certain effect, rather than simply getting "more confused" if  a force
other
> than a fall downward is perceived.

Eh?
There are no external forces present in this animation. The emitter
moves along the specified railway. Particles are born on the surface
and move with the emitter the instant they are born, but then
have no contact with the emitter in any way.

So. Imagine yourself in a rollercoaster, holding a glass of
water. You know what happens when you're tossed around
in curves, right? That's inertia.

Its not an actual external field in the algorithmic sense of things.
Its the movement the emitter inhibits at the moment the particle
is born. Other than giving some velocity to the particle,
only gravity is applied. Everything else is then just calculated
from then on.

IF you're talking about making an NEW animation, showing off
other aspects than gravity and bouncing off of the boundary-
box, THEN I can only say: Yes, those animations are to come
as well. I'm creating one demonstration of a specific feature at
a time. Rainbow was for custom particles, Drops as a plain
simulation of gravity and rebounce, Inertia shows off the effect
moving emitters may have on particles.

And if I'm still not understanding you, then I don't know what
to think of my brain. ;-)

Apologies if I don't get it, had a hard week so far!

Regards,
Tim

--
Tim Nikias
Homepage: http://www.digitaltwilight.de/no_lights/index.html
Email: Tim### [at] gmxde

>
> Okay, I'm saying your code has an added functionality--  "some sort of
> wind"-- as you say.   To show off this bell and whistle, put an object
that
> will give the viewer a reference point for the wind, such as a fan.  Then
> the viewer will be more impressed as he or she may understand and expect a
> certain effect, rather than simply getting "more confused" if  a force
other
> than a fall downward is perceived.
>

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