Light painting actor

jgastonraoul

Hi,

I'd like to know if it exists some "light painting" actor ?

I would see something like that : it takes a video in input and for each image, it takes the highest value of each pixel between the last result image and the current image and display the new result. If the input is a black video with only one white point moving, the result should be a draw of the white point path.

I don't know if my explanation is very clear...

Did someone managed to do something like that ?

Best regards,

Jeremie

Skulpture

Hmmm maybe look at the luminance actor and freeze, video buffer or motion blur actor... i'm sure you can grab each brightest bit of a picture and build up a montage type effect...

Michel

@jgastonraoul
Try this patch.

Best
Michel
20b8ce-lightpainting.izz

jgastonraoul

Exactly what I was looking for, thanks !

awlieber

@Michel

The patch works great. Is there an actor that can be added to make the light dissipate after a specified amount of time?

Michel

@awlieber

I updated the post above with a new version that can do that, please re-download.

By the way, I have made a simmilar patch last week, that works a bit different that may suit your needs more or less try it out, you find it HERE.

Best
Michel

awlieber

@Michel

thanks! They both are awesome but not exactly what I was looking for.

I'd like the trail of light to continuously disappear so it looks almost like a snake emerging from the light source's movement instead of periodically resetting.

Does that make sense?

Cheers,

Alex

Michel

@awlieber

Ok, here is a version that fades the light trail. And see also the other POST for a fading light trail version.

Best
Michel
9ebc66-lightpaintingtrail.izz

Armando

Have a look.....

[http://vimeo.com/71216887](http://vimeo.com/71216887) (e-motion+leapmotion) hand drawing of text plus particle systems.....

crystalhorizon

that looks great!

alexb

@ Michel

I did downloed your actor and It works great for what I was looking for.
Thank you

alx

awlieber

@Michel

Here's a little experimentation video I made with your actor. Thanks!

[https://vimeo.com/86792401](https://vimeo.com/86792401)

Alex

Michel

@awlieber

Looks great, glad the actor was useful for you.

Best
Michel

fubbi

nice!