sampleImage() is fun
sampleImage() is a new layer method expression introduced in After Effects CS3 that allows you to access a layer’s color pixel data. Combined with sophisticated particle systems like Particular, I think we’re likely to see some really interesting designer driven explorations a la Processing, but with more of a tinkering, let’s try things out approach.
I’ll have more scripts, and automated stuff as I explore further, but until then you might want to take a look at the reference and examples that Dan Ebberts is posting at the brilliant MotionScript.com
Jon said,
November 28, 2007 at 2:42 pm
Hi,
you just got me thinking, when you mentioned Particular.
I’ll try to make it short:
We’re trying to achieve a “living” animated
book page by linking the size (or the spacing)
of the letters on the page to the luminance of
the source layer - by using a sampleImage
expression.
This works - however you seem to need one layer
per letter!! which slows down the computer drastically… (working with 900 layers…) do
you think there is a better way by doing this
with Trapcode Particular??
(something like letters floating around,
accumulating wherever the source layer is dark)
Thanks for reading this.
I suspect this is not exactly a forum, so I’d be
REALLY grateful if you gave a short response.
thanks, Jon
Dale said,
November 28, 2007 at 2:51 pm
Hey Jon,
Yes, I think Particular would work nicely there. You might want to take a look at some of the Harry Frank presets to get some ideas.
I think the halftone preset here in14 presets
and
lite bright should be a good starting point.
Dale