Pedro Louzeiro

I'm having a problem with Jitter (OpenGL) in very few computers that I can't solve and I'm hoping someone has helpful insights. 

The best way I can describe the problem is as if there were two rendering planes on top of each other in constant alternation. Because I use movement and an erase color with a fair amount of transparency, the result is that each frame looks like if the image is shifting back and forth.

In most of the computers (dozens) I've tested the patch with, this problem does not occur. It never occured in a mac. 

In one Windows machine that had two graphics cards, this problem happened and I was able to solve it by telling Max to open with the dedicated GPU. But this has happened in machines with just one (integrated) GPU and thus I can't solve it. 

Yesterday, the weirdest thing happened: with three perfectly equal machines running the same software (maybe some different drivers - I can't be sure) two machines were performing flawlessly and one was acting out.

I'll be using these machines in a concert tomorrow at SMC 2018, so any help from this community will be deeply appreciated!

I'm pasting a link to a video made with a smartphone. Unfortunately, the frame rate of the capture kind of blurs the effect so it doesn't seem too bad... but it is...

https://www.facebook.com/groups/maxmspjitter/permalink/10157474854919392/

Also, you can check out a proper screen capture to see what it's meant to look like:

https://comprovisador.wordpress.com/new-notation-example-video/

Hi!
I'm having a problem with Jitter (OpenGL) in very few computers that I can't solve and I'm hoping someone has helpful insights. 
The best way I can describe the problem is as if there were two rendering planes on top of each other in constant alternation. Because I use movement and an erase color with a fair amount of transparency, the result is that each frame looks like if the image is shifting back and forth.
In most of the computers (dozens) I've tested the patch with, this problem does not occur. It never occured in a mac. 
In one Windows machine that had two graphics cards, this problem happened and I was able to solve it by telling Max to open with the dedicated GPU. But this has happened in machines with just one (integrated) GPU and thus I can't solve it. 
Yesterday, the weirdest thing happened: with three perfectly equal machines running the same software (maybe some different drivers - I can't be sure) two machines were performing flawlessly and one was acting out.
I'll be using these machines in a concert tomorrow at SMC 2018, so any help from this community will be deeply appreciated!
I'm pasting a link to a video made with a smartphone. Unfortunately, the frame rate of the capture kind of blurs the effect so it doesn't seem too bad... but it is...
https://www.facebook.com/groups/maxmspjitter/permalink/10157474854919392/
Also, you can check out a proper screen capture to see what it's meant to look like:
https://comprovisador.wordpress.com/new-notation-example-video/
Thanks in advance!

Hi!
I'm having a problem with Jitter (OpenGL) in very few computers that I can't solve and I'm hoping someone has helpful insights. 
The bes

opengl-flicker

I'm using [jit.pwindow], [jit.gl.render] (not world) and [jit.gl.gridshape], apart from a few [jit.gl.text2d].

I'm assuming I should stick the @doublebuffer attribute in the [jit.gl.render], right?

I can try tomorrow morning in the 'faulty' computer, but I have to – blindly – edit the patch today on my machine (and build a collective), that's why I ask for your confirmation.

Thanks, Rob!
I'm using [jit.pwindow], [jit.gl.render] (not world) and [jit.gl.gridshape], apart from a few [jit.gl.text2d].
I'm assuming I should stick the @doublebuffer attribute in the [jit.gl.render], right?
I can try tomorrow morning in the 'faulty' computer, but I have to – blindly – edit the patch today on my machine (and build a collective), that's why I ask for your confirmation.

OpenGL flicker