Edge bleed

Philuk wrote on 10/8/2022, 11:26 AM

Hi, I'm having right ding dong with a render of a video. In short I'm getting edge bleed and break up post render, but nothing on the timeline. I've tried all the various properties settings from 8 bit to 32 bit. The 32bit more or less sorts it, along with zooming into the shot event pan and crop, but it isn't ideal and there's still some artifacting going on.

The edit has a lot of the clips which have been slowed down with velocity envelope, which I've varied to see if that causes the problem, but that draws a blank. It's almost as if after every render I develop a new bleed and still retain the old bleeds in the nest render attempt, almost if it's memorising the burn...if that makes sense!

I've attached some screen grabs highlighting the issue.

Footage is from Sony F5 and Sony A7sIII using .mxf files.

Here's the screen shots - 1st one shows the edge bleed, 2nd shot show the timeline view without. 3rd shot shows the corner break up. 4th shot shows the edit settings.

If anyone has any suggestions I would be most grateful.

Cheers

Phil

 

 

I'm using V19 build 643

Here's my computer spec via Vegas, although I'm actually using Win 11 Pro???

Operating System
  Platform: Windows 10.0 (64-bit)
  Version: 10.00.22621
  Language: English
  System locale: English
  User locale: English

Processor
  Class: 12th Gen Intel(R) Core(TM) i9-12900KS
  Identifier: GenuineIntel
  Number of processors: 24
  MMX available: Yes
  SSE available: Yes
  SSE2 available: Yes
  SSE3 available: Yes
  SSSE3 available: Yes
  SSE4.1 available: Yes
  SSE4.2 available: Yes

Display
  Primary: 1920x1200x32

Memory
  Physical memory: 65,277.6 MB
  Paging memory available: 79,618.9 MB

Here's the actual comp spec from my PC

Device name    Phils3rdEdit
Processor    12th Gen Intel(R) Core(TM) i9-12900KS   3.40 GHz
Installed RAM    64.0 GB (63.7 GB usable)
System type    64-bit operating system, x64-based processor
Pen and touch    No pen or touch input is available for this display
 

Comments

john_dennis wrote on 10/8/2022, 12:08 PM

@Philuk

  • Post Mediainfo Report for the media involved in your example screenshot.
  • Try a CPU only encoder (not NVENC) and report whether the artifacts still appear.

  • If all your source video is progressive, set Deinterlace Method to None.
  • If your source video is all 25 FPS, turn off Optical Flow. Set Resample Mode to No Resample
  • Render to anything except NVENC. Report the results.

Philuk wrote on 10/8/2022, 2:46 PM

Thanks John,

Hold on caller while I tinker!

P

Philuk wrote on 10/8/2022, 3:01 PM

Hi John,

That seems to have sorted it! Many thanks

Here's the mediainfo screen grab just in case you notice anything else.

P

walter-i. wrote on 10/8/2022, 3:53 PM

That seems to have sorted it! Many thanks

@Philuk
If you know what caused it, maybe it would be interesting for those who encounter the same problem one day, and would appreciate your hints.
That's how forums work.

Philuk wrote on 10/9/2022, 6:26 AM

Hi Walter,

I simply followed John's instructions. I presume it was caused by the different codec, CPU, interlaced settings struggling with the original files, so can't really add anything other than he's work around worked.. sorry!

Phil

walter-i. wrote on 10/9/2022, 3:11 PM

@Philuk
Thanks for the info!
Then feel free to mark John's post as a solution.