bronzebygold

I'm pretty new to Jitter, although I'm experienced in Max and MSP. Could you suggest a method of creating a black-and-white pointillist effect in Jitter?

creating-pointillist-effect-in-jitter

I want to create something like this, but the external used here was for Max 5 and is no longer compatible. Any ideas?

https://www.youtube.com/watch?v=XjPndyACBBY

Make a basic jit.gl.render and jit.window context called world.

Jit.rgb.luma ( converts to 1 plane greyscale) plug into op below

Jit.op @op > @val 0.75 ( change val to tweak) plug into videoplane below

Jit.gl.videoplane node-a @transform reset 2 (this draws to jit.gl.node node-a)

Jit.gl.node @name node-a @ capture 1 ( the capture output of this gos into the videoplane below)

Jit.gl.videoplane world @transform reset 2(draws to whole render context)

Later on you can add jit.gl.pass @fxname smear

Make a basic jit.gl.render and jit.window context called world.
Eg. Jit.gl.render world
Jit.window world. 

Video source
Jit.rgb.luma ( converts to 1 plane greyscale) plug into op below
Jit.op @op > @val 0.75 ( change val to tweak) plug into videoplane below
Jit.gl.videoplane node-a @transform reset 2 (this draws to jit.gl.node node-a)

Jit.gl.node @name node-a @ capture 1 ( the capture output of this gos into the videoplane below)
Jit.gl.videoplane world @transform reset 2(draws to whole render context)

Later on you can add jit.gl.pass @fxname smear
To get the trail effect.


Everything Andro , but the best for this type of stuff is to use the kinect depth_map cam if you have one.

the patch below does basically what Andro said (without the smear)

Here you can witness what the patch does if you use a kinect cam

https://www.dropbox.com/sh/xy91c6tzmue8l3o/AAAX6zw4E6pblKQ-NQnK8WTJa?dl=0

Welcome to jitter.
Everything Andro , but the best for this type of stuff is to use the kinect depth_map cam if you have one. 

Here you can witness what the patch does if you use a kinect cam 

Sorry my ignorance, a still get confused by the render contexts, nodes, videoplanes and all the GL environment but.. in the structure that Andro suggest how would you later add the jit.gl.pass? naming same as the node? like so?

I am saying because it does not appear to do anything..

Also, could the pass just be connected to the output of a matrix without naming it to affect only that matrix in case of using other GL objects that I don t want to be affected by this or any other jit.gl.pass effect?

> the patch below does basically what Andro said (without the smear)

That looks pretty nice Phios, shame that is not including the smear and also is a bit more complicated (I know is not but to me..) to understand the jit.gl.pass thing..

Sorry my ignorance, a still get confused by the render contexts, nodes, videoplanes and all the GL environment but.. in the structure that Andro suggest how would you later add the jit.gl.pass? naming same as the node? like so? 

gl.pass smear simply requires setting the erase_color of the capturing context to 0 0 0 0.

Creating pointillist effect in Jitter