motion vectors

Beginners
1

Hi, everyone! i’ve one question about motion vectors.
i’m wondering if it’s possible to generate motion vectors from a movie and emitt particles from these vectors, all inside TouchDesigner.
Thx in advance!

2

do you have a reference of what you’d like to do? I’m sure you could do it, but whether or not it would be easy would be another thing.

3

Hey! Yes i would like to achieve the same effects that is demonstrate here in After Effects with trapcode particular

vimeo.com/52099566

but in touch.

Thanks!!!

Esteban

4

Hello, Nenuco! Im very interested in this issue, too, especially since somehow it was solved by vvvv. vimeo.com/120944206. Do you understand how to do this?

5

You could probably do that by tweaking the gpuparticles sample in the palette. It already takes an input for optical flow (also in the palette) for forces, you could set the life of new particles to 0 based on the optical flow so it only emits where there is movement.

6

Sorry for the stupid question, but in which palette can I find gpu particle and optical flow?

7

in the TouchDesigner Palette

8

The question was really stupid. Thanks vinz99 and netoyer, the topic is closed.