Fast HD video playback
Hi,
does anyone have any tips they could share for lowest latency HD video playback in Unity?
A demo I am playing with is using four(4!) HD clips played back simultaneously.
It is some stereo footage I shot and also with an added alpha channel per eye that I generated myself.
At the moment the Alpha channel is a RGB clip like the others but maybe there's a way to create a single color channel video clip that can playback? (I actually haven't tried that yet.)
But it is very choppy at the moment on my i7-gtx660.
I am using just Unity's default movieTexture.
EDIT: I am just noticing that it is very stuttery even when I am playing just one of the streams. Strange as the FPS counter is on a constant 90. (my non video scenes are all smooth as)
EDIT2: There is something strange going on with the HD movieTexture playback. The frame counter goes to 90ish fps when I thought it would be forced to match the Rifts 75Hz if equal or higher? I disabled vsync in Unity but added this to a script, Application.targetFrameRate = 75;
This made the frame counter display 75ish fps but I got the same stuttery feel.
I then got rid of that line and re-enabled vsync and loaded up a lower res version of the clip but otherwise with the same codec/quality etc settings.
This now played perfectly smooth and ran at 75fps. (slower than the full HD clip)
Any ideas why the HD clip would break the smoothness even as it reports higher or equal to 75fps?
Any tips appreciated.
Cheers
Fred
does anyone have any tips they could share for lowest latency HD video playback in Unity?
A demo I am playing with is using four(4!) HD clips played back simultaneously.
It is some stereo footage I shot and also with an added alpha channel per eye that I generated myself.
At the moment the Alpha channel is a RGB clip like the others but maybe there's a way to create a single color channel video clip that can playback? (I actually haven't tried that yet.)
But it is very choppy at the moment on my i7-gtx660.
I am using just Unity's default movieTexture.
EDIT: I am just noticing that it is very stuttery even when I am playing just one of the streams. Strange as the FPS counter is on a constant 90. (my non video scenes are all smooth as)
EDIT2: There is something strange going on with the HD movieTexture playback. The frame counter goes to 90ish fps when I thought it would be forced to match the Rifts 75Hz if equal or higher? I disabled vsync in Unity but added this to a script, Application.targetFrameRate = 75;
This made the frame counter display 75ish fps but I got the same stuttery feel.
I then got rid of that line and re-enabled vsync and loaded up a lower res version of the clip but otherwise with the same codec/quality etc settings.
This now played perfectly smooth and ran at 75fps. (slower than the full HD clip)
Any ideas why the HD clip would break the smoothness even as it reports higher or equal to 75fps?
Any tips appreciated.
Cheers
Fred