Sony Vegas Lower Third Bug

Br0k3n wrote on 6/18/2017, 4:28 AM

Hello guys,

Iam kinda new on editing videos and i came across a problem. I created a lower third on my video project and everything seemed fine. However when i rendered the video and play the video afterwards, the moment the lower third comes in it glitches a bit with a grey/black kinda square for a split for a second. I tried to check frame by frame on the project preview and everything seems fine and it doesnt happen there.

Here is the video: Check from 1:30 mark and you can see after the lower third kicks in it glitches.

Sorry the bad english.

Comments

TheHappyFriar wrote on 6/18/2017, 8:02 AM

The flash at that time? It looked on purpose to me. :)

 

Make sure you preview good/full just in case something is being dropped in lower preview settings, and make the review full screen.

 

Is it just on youtube or in the rendered video too?

Br0k3n wrote on 6/18/2017, 8:41 AM

Thank you sir for your reply. Its not a flash, try to run the video in 0,25 speed. Its a grey thing that shows up. This is my second video, on my first video this happened aswell but i managed to check frame by frame in SV and it was there. Some frames were bugged and i needed to slide the clips a bit in order to debug.

What happens now is that in SV everything appears normal when i slide frame by frame. I cant fix something where i dont know what to look at.

Rendered video also.

fr0sty wrote on 6/18/2017, 10:47 AM

What are you using to generate the lower third? That may help us isolate the issue.

Systems:

Desktop

AMD Ryzen 7 1800x 8 core 16 thread at stock speed

64GB 3000mhz DDR4

Geforce RTX 3090

Windows 10

Laptop:

ASUS Zenbook Pro Duo 32GB (9980HK CPU, RTX 2060 GPU, dual 4K touch screens, main one OLED HDR)

Br0k3n wrote on 6/18/2017, 11:06 AM

Ill send you the youtube link of what i have done.

I downloaded it, i removed the green screen and put it on top of the clips and sometimes it works fine and sometimes it put a black/grey square when they are going in and out of the movie as you can see on the video i posted above.

Thing is that this time when i go frame by frame on preview i see nothing.

Br0k3n wrote on 6/18/2017, 11:09 AM

Do you think is this specific "premade lower third?" Im not that advanced to make a lower third. If you recommend a good template i can test it out and see if its problem of the one i used.

Sorry for the typos, english is not my native language!

 

fr0sty wrote on 6/18/2017, 11:30 AM

I'm curious why they are using the green screen when it appears that just putting your video on the track where the green is should work just fine without the need to chroma key anything...? Unless the lower third graphics were rendered with a black background instead of having an alpha channel to let video from tracks below show through.

If you drop a video clip where the green track is without using chroma key, do you still see the video? See if that helps.

 

Systems:

Desktop

AMD Ryzen 7 1800x 8 core 16 thread at stock speed

64GB 3000mhz DDR4

Geforce RTX 3090

Windows 10

Laptop:

ASUS Zenbook Pro Duo 32GB (9980HK CPU, RTX 2060 GPU, dual 4K touch screens, main one OLED HDR)

Br0k3n wrote on 6/18/2017, 11:35 AM

Yes it works, im doing that. I deleted the green screen track and put my video there without using chroma key and it works fine.

If you check the video there are plenty of lower thirds and only a few gets glitchy. On a previous video i made i could see it frame by frame on Sony vegas preview. But i cant anymore, it looks fine frame by frame now.

Br0k3n wrote on 6/18/2017, 6:27 PM

Check 3:50 till 4:00 of my video. Same thing happens on the left side of the screen. It glitches black.

TheHappyFriar wrote on 6/18/2017, 7:48 PM

Make sure the first frame(s) of your lower 3rd don't have grey on them, or that you didn't accidentally put a keyframe on one of the FX's on the lower 3rd right near the start.