Flickering Distorted Video - Please Help!

CopyrightJail wrote on 4/22/2015, 5:13 PM
I'm attempting to render a video for school, but whenever I render it comes out extremely choppy and distorted. I've tried MULTIPLE render settings as well as custom render settings but EVERY time I render this video, it comes out like this. Does anybody know what the issue is and how to fix it?

Here is a clip of the video:

(the part when the screen goes black is part of the editing, the distorted flickering is the issue)

Please help if you can, thanks!

Comments

larry-peter wrote on 4/22/2015, 5:32 PM
I don't want to sound like a Microsoft phone service call, but...
try restarting your computer.

I've had this happen on a few occasions and that was the simple solution for me. I came to believe that there was a frame being held in GPU memory that kept being cyclically introduced into the render, and restarting cleared it. I also saw several warnings related to GPU in Windows Event Logs when this occurred.

If this doesn't work, please offer more info on your source footage, project settings and render settings.
CopyrightJail wrote on 4/22/2015, 6:25 PM
I restarted my computer and that did not work. However, I just realized that the issue is coming from the source footage? I just rendered another clip from something totally different and it came out perfectly clear. It's my footage that's having this issue. The original footage is a .mov. Do you have any ideas on how to fix this without me having to restart my project? Thanks for the help!
Spectralis wrote on 4/22/2015, 7:23 PM
Things to try:

Right click your clips, open properties, open video event tab and disable resample.

Match you project settings to those of your clips.

When rendering QuickTime try rendering to a drive that doesn't have a generic name. The drive you're rendering to might need a unique name for QuickTime to render correctly. QuickTime and VP sometimes don't work well together for various reasons.

If the .MOV files still doesn't render well you could try converting them to something more VP friendly in another application.

larry-peter wrote on 4/23/2015, 11:30 AM
"However, I just realized that the issue is coming from the source footage?"

Does the clip play back properly in Quicktime player? If not, then the clip may be the problem. If it does play properly, don't jump to conclusions that the footage is the entire problem. You haven't provided any information about the codec used (Quicktime is a wrapper for various codecs) frame rate, if the project properties match the footage, if Quantize to Frames is enabled, etc., etc.

For a basic test, start a new project. Search this forum (or read the help file) to learn how to match the project settings to a clip, then make sure Quantize to Frames is enabled in the new project BEFORE you add the clip to it. Quantize to Frames is the first selection in the "Options" dropdown on the main menu. Then add your clip to the timeline, then attempt to render it. Then let's hear about the results. If it renders correctly, we'll see if we can help you make it work in your current project.