Vegas rendering "corrupt" frames (mp4)

Marc-Langelier wrote on 1/27/2021, 7:21 PM

Hi all. Approximately 2 weeks ago, I started to see what I'll refer to as "corrupted" frames being rendered in VegasPro18. This is occurring when I am rendering .mov files (from an Atomos Ninja) to .mp4 files. It seems somewhat random, but I can always count on it happening when there is a change of scene. I'm wondering if this may actually be an issue with the video card, or possibly something I can fix within VegasPro. FWIW, I did just install the newest VegasPro update.I've attached some screen shots of what is happening.

Comments

RogerS wrote on 1/27/2021, 8:46 PM

Hi Marc, that's not good. Can you share a screenshot of your render template? You are in VP 18? If you click help/driver updates, are there any newer ones you can use?

After you try that, for a workaround try setting dynamic ram preview to 0. If that doesn't help also disable GPU acceleration in preferences/video before rendering. You can put both back to normal when you edit.

Marc-Langelier wrote on 1/27/2021, 10:00 PM

Hi Roger. So I've attached a pic of the render template in question. Note that I'm a legal videographer and 720x1280 is the preferred format in our world. Also, I had previously used the same render template with an encoder mode of NV Encoder, but was running into a lot of crashes during the render.
I just updated to the latest version of VegasPro18 two days ago.

fr0sty wrote on 1/27/2021, 11:47 PM

Use the driver update feature in the vegas help menu and see if there's any updated drivers for your GPU that VEGAS recommends you use.

RogerS wrote on 1/27/2021, 11:50 PM

1. Are your drivers updated? For NVIDIA you need to be on the Studio Driver if your card supports it.
2. What is your GPU?
3. Render template looks okay. Why did you select variable framerate but then set maximum and average bit rate to be the same? Maximum should be greater to have any benefit in complex scenes
4. What is dynamic ram preview set to (preferences/video)?