I'm attempting something like letters of sand being blown away. This is just
a rough first test.

The text is multiplied with various functions so that it dissipates and
fades away from right to left. According to the amount of fade from one
frame to the next, I add particles which get blown away by the wind. What I
was trying to achieve is that the text gets blown away from the right.

As is obvious, this was a very simple setup, the particles are discs facing
the camera and the text is just the same function/pigment which I also use
to calculate the amount of "dust" to pass to the particle system. I'm really
after suggestions, not only visually (though the text has to remain white on
black background, so I guess the dust should be white/gray as well) but also
how to properly speed things up. This animation, 100 frames, required 6
hours, which is quite long, keeping in mind that the final resolution has to
be bigger and I need several such single lines to be blown away (it's for
the end credits of a short).

Regards,
Tim

-- 
"Tim Nikias v2.0"
Homepage: <http://www.nolights.de>

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Attachments:
Download 'blowtext.mpg' (115 KB)

Incredible effect, Tim.

Would you mind sharing the code? About a dozen uses come to mind instantly.
It would be a great effect for a titles sequence done with POV.

Regards,

ADB

"Tim Nikias" <JUSTTHELOWERCASE:timISNOTnikias(at)gmx.netWARE> wrote:
> I'm attempting something like letters of sand being blown away. This is just
> a rough first test.
>
> The text is multiplied with various functions so that it dissipates and
> fades away from right to left. According to the amount of fade from one
> frame to the next, I add particles which get blown away by the wind. What I
> was trying to achieve is that the text gets blown away from the right.
>
> As is obvious, this was a very simple setup, the particles are discs facing
> the camera and the text is just the same function/pigment which I also use
> to calculate the amount of "dust" to pass to the particle system. I'm really
> after suggestions, not only visually (though the text has to remain white on
> black background, so I guess the dust should be white/gray as well) but also
> how to properly speed things up. This animation, 100 frames, required 6
> hours, which is quite long, keeping in mind that the final resolution has to
> be bigger and I need several such single lines to be blown away (it's for
> the end credits of a short).
>
> Regards,
> Tim
>
> --
> "Tim Nikias v2.0"
> Homepage: <http://www.nolights.de>

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I'll post the code to p.b.s-f in a few seconds. Note that it requires
"Parsys", my I/O-based particle system, which you can get from here:
http://www.nolights.de/download.html#Parsys. The scene itself is rather
simple and neither optimized nor is the visual output enhanced. It's just
about the same scene as the animation. Should be easy to understand though,
quite some comments along the way. :-) BTW, it renders pretty slow due to
lots of particles + transparency.

Oh, and let me know if you ever really use it for something, wouldn't mind
seeing what you came up with. ;-)

Regards,
Tim

-- 
"Tim Nikias v2.0"
Homepage: <http://www.nolights.de>

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