On a current series the delivery is a QT in DNX_115 with 12 tracks of audio. I'm noticing banding after I render to DNX_115 for my Safe Color Effect. My timeline is set to 10 bit green. If the safe color is unrendered no 8 bit artifacts but once I render to DNX_115 there are bit artifacts on certain shots that have walls with a shallow ramp luminescence.
I understand why the artifacts crop up when rendering to DNX_115 but I'm trying to remember if there was a console command that might boost the quality. IIRC there was a command that effect title tool HDTITLEFILTER which turned of anti alliasing and there was a resize command to decide how Avid processed a resize,:
SYNTAX Setresizetype 8
NOTES AVID supports three quality levels for real time resizing. This can be done with an effect like
Picture in Picture, or automatically by the system when you place an SD shot in an HD
sequence (or vice versa). 3D warp effects are not changed by this setting.
1 = nearest neighbour
8 = anti‐aliased bilinear (the default)
9 = polyphase
NOTES AVID supports three quality levels for real time resizing. This can be done with an effect like
Picture in Picture, or automatically by the system when you place an SD shot in an HD
sequence (or vice versa). 3D warp effects are not changed by this setting.
1 = nearest neighbour
8 = anti‐aliased bilinear (the default)
9 = polyphase
Now I'm wondering if there is any other console command that might improve the render of my 10 bit timeline to DNX_115 with less banding? I realize it's the nature of the 8 bit DNX_115 codec to introduce 8 bit artifacts but is there any magic console voodoo that might improve how the conversion to 8 bit is smoothed out with less banding. I'm probably just dreaming but thought I'd ask the collective. I haven't delivered DNX_115 in a while.
John Moore Barking Trout Productions Studio City, CA bigfish@pacbell.net
No comments:
Post a Comment