VP18 - Notes on the 8 bit full level option


Howard-Vigorita wrote on 5/27/2021, 1:55 PM

After a bunch of back and forths with zcam, I think I have a reasonable workaround. I don't want to lose the Vegas feature of working full range internally. But I can't have it altering the range or levels of zLog2 clips before the lut's applied. It would be nice if I could exempt this particular footage from auto-range conversion with a "Don't Tread on Me" media switch. Lacking that, my workaround is to patch the media metadata to re-mark it as full range without altering its video stream. I think this is less intrusive than applying the lut with a transcode before pulling it into Vegas. Or doing a conversion back to studio levels with a levels fx ahead of the lut fx. Or marking the project limited and putting a computer-to-studio fx on any of the other clips that need it. My preliminary of this approach looks good.

Blaine-WItherow wrote on 3/15/2022, 3:32 PM

RE: full range, Waveform setting 'Studio RGB' turned off. I don't understand the color bar test signal. With these settings, it is low. When I render it and look at it, it still is low (as observing in Vegas Pro 19). I thought it would convert it to full color levels. Obviously I am not understanding everything in this thread.

OS Name    Microsoft Windows 10 Pro
Version    10.0.19042 Build 19042
OS Manufacturer    Microsoft Corporation
System Name    TVBLAINE19
System Manufacturer    HP
System Model    HP Z2 Tower G4 Workstation
System Type    x64-based PC
Processor    Intel(R) Core(TM) i7-8700 CPU @ 3.20GHz, 3192 Mhz, 6 Core(s), 12 Logical Processor(s)
BIOS Version/Date    HP Q50 Ver. 01.04.07, 1/31/19
SMBIOS Version    3.1
Embedded Controller Version    7.210
BaseBoard Manufacturer    HP
Installed RAM    32.0 GB (31.9 GB usable)
Graphics card     NVIDIA Quadro P1000
Synaptics HD Audio
Edition    Windows 10 Pro
Version    20H2
Installed on    ‎6/‎18/‎21
OS build    19042.1466
Experience    Windows Feature Experience Pack 120.2212.3920.0

Vegas Pro 19 build 458 as of March 1, 2022

Using Vegas Pro 11, 13, 17, 19

Musicvid wrote on 3/15/2022, 5:15 PM
  • Don't use the legacy "Studio RGB" Waveform setting with the Full Range Project Setting. They are redundant insofar as the scope display, which you do not want.
  • In a Full Range Project, you will set the desired full range values to read 0-255 on the waveform. The render will automatically be 16-235 (assuming a YUV delivery codec), the correct REC 709 Limited output levels for most playback and delivery. The Vegas Preview is not a Playback monitor, so if you bring the rendered REC 709 output file back into Vegas, the colors will look flat and washed out.
  • This article explains it all the way it was before the Full Range project settings were introduced fairly recently. It will make good backstory reading for you, and perhaps clear up some of the confusion regarding Full Range Projects as you learn. I've been at this particular issue for eleven years, since a bunch of us oldtimers started our research in 2011.
  • https://www.vegascreativesoftware.info/us/forum/pc-to-tv-levels-a-comedy-of-errors--107325/