Render Glitches with GPU Acceleration On - VP13

Jordan Price wrote on 2/15/2015, 8:19 PM
Recently I have noticed Render Glitches in my renders when GPU Acceleration is on in Vegas Pro 13. I have seen this before in Vegas Pro 12 as well. I am experiencing Random digital blocking & random black. No audio issues to speak of.
When I disable "GPU Acc" and restart Vegas, everything renders just fine but VERY slow. Obviously I want to be able to utilize "GPU Acc" but can't get a clean render.

I have tried updating to the latest GPU Driver to no avail. I am also using the latest version of Vegas Pro 13 as of 02-15-15.

I don't have any 3rd Party Plug-Ins or FX installed

I've installed a fresh version of Windows 8.1 less than two weeks ago.

I am Rendering to Main Concept MP4 1080P 60fps. I have tried 30fps as well and get the same result.

My footage is .MOV 1080P 200mbps 60fps from a GH4 Camera.

My Computer Specs:
Windows 8.1 Pro
Intel i7-5820K 6 Core Processor
Nvidia GTX 980
32GB DDR4 RAM
512GB SSD system Drive (256GB X2 in RAID 0)
3TB Media Drive (1TB X3 in RAID 0)

Comments

Lovelight wrote on 2/15/2015, 9:15 PM
Welcome to all of our world. GPU is unreliable in many ways. Weird artifacts is the first. Turn it off.
Marc S wrote on 2/15/2015, 9:35 PM
I've been having major problems with crashing the last couple of days and realized I had turned on GPU. Turned it off and not one crash since. Really bad compared to Premiere's GPU utilization which causes me no issues.
Spectralis wrote on 2/16/2015, 12:44 PM
While I thank those here who have spent a lot of their time trying to find a way to get GPU acceleration to work with some success, and despite Sony never officially recommending particular GPU's, unless you buy a really old, hot and noisy NVidia card or very specific AMD cards and possibly need to reinstall Windows, all your software and troubleshoot drivers then GPU acceleration in Vegas is not guaranteed to work.

For those of us who use GPU rendering with other software then this isn't an option. I use GPU acceleration with at least 4 other applications without any problems so Sony needs to catch up with the rest of the world. If this makes other Vegas customers fed up and they consider it completely unacceptable then I sympathise.
musicvid10 wrote on 2/16/2015, 12:59 PM
"

Yup.

S35 wrote on 2/17/2015, 7:38 AM
Jordan, have you tried enabling 2-pass in the render template? This was necessary for me to overcome some nasty dropouts (a difficult scene with lots of blurry moving smoke and a white flash that temporarily obscured the frame). Albeit those dropouts only were consistently occurring in an MPEG-2 render, not the AVC version.

EDIT: Also make sure you check the rendered file back on Vegas' timeline to see if the glitches are real. I discovered recently that after enabling 2-pass, my problems had been solved, but VLC media player was still showing massive dropouts!