Forums > Jitter

How to maintain aspect ratio of movie when going fullscreen?


Jan 05 2010 | 3:32 am

I’m using a patch that reads in a 16:9 formatted movie, and sends it to play fullscreen on a 4:3 projector. It seems that by default, the playback chain I am using stretches the movie to entirely fill the frame, so it becomes distorted.

How can I ensure that the aspect ratio is maintained (ie adding black bars top and bottom) when projecting a 16:9 movie via a 4:3 display?

I am using a jit.qt.movie -> jit.gl.slab -> jit.gl.videoplane -> jit.window

Jan 05 2010 | 11:10 am

hi,

don’t forget the ortho attribute of the jit.gl.render, it could be useful for video projection without 3d effect
try this :


-- Pasted Max Patch, click to expand. --


FP
Jan 05 2010 | 12:25 pm

or this :

— Pasted Max Patch, click to expand. —
Jan 05 2010 | 1:50 pm

Here’s what I often do. Two possibilities:

best,
Zachary

— Pasted Max Patch, click to expand. —

and/or

— Pasted Max Patch, click to expand. —
Jan 07 2010 | 7:06 pm

Thanks all, those all work great!

Aug 18 2013 | 3:29 am

This helped me too, thanks.

Aug 19 2013 | 11:42 am

the easiest way with max 6, is to use jit.gl.cornerpin @preserve_aspect 1

Aug 22 2013 | 7:06 pm

Hi guys,

I found this thread and has really helped me with a project I’m working on.
What I now need to accomplish, is to break up image (2880 x 576) into 2 blocks (1440 x 576 each), so I can use 2 projectors, each projecting half the image.
I’ve tried the jit.scissors object to divide the image but it is not giving me the right proportions after. Any suggestions?

— Pasted Max Patch, click to expand. —
Aug 22 2013 | 7:08 pm

Hi guys,

I found this thread and has really helped me with a project I’m working on.
What I now need to accomplish, is to break up image (2880 x 576) into 2 blocks (1440 x 576 each), so I can use 2 projectors, each projecting half the image.
I’ve tried the jit.scissors object to divide the image but it is not giving me the right proportions after. Any suggestions?

— Pasted Max Patch, click to expand. —
Aug 23 2013 | 2:19 am

@ALLABOUTD
One possibility is to create one single and to position it with the message relative to your projectors screen size, assuring to position your exactly in the middle of your overall screen size (= size projector 1 + 2).

Best,
Helmuth

Viewing 10 posts - 1 through 10 (of 10 total)

Forums > Jitter