Comments

fr0sty wrote on 8/26/2018, 9:23 PM

No. GPU rendering only supports certain formats (h264 and HEVC are it IIRC), and those formats do not edit well, as they require more CPU power to decode. When you make proxies, you are saving them as a format that is easily decoded (I can't remember exactly which, maybe Sony XAVC-I?) and it is at 720p resolution to make it even easier. It isn't just a Vegas issue, no editor or encoding app can encode to those formats using the GPU.

Last changed by fr0sty on 8/26/2018, 9:24 PM, changed a total of 1 times.

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)

Former user wrote on 8/26/2018, 9:29 PM

The proxy is only for you to see the video in preview window. Your render will come from original files. You use proxy if you have problems using timeline & preview smoothly due to nature of original file format. Maybe an older computer with older video card but imported video is 4k h.265

There is some other proxy thing that got introduced with vegas15 and I don't know what that is about, but I think we're talking about the same proxy, not vegas15 proxy (whatever that is)

doubleJ wrote on 8/27/2018, 9:09 AM

Also, what is it using for the proxy files?

Does it use the MAGIX Intermediate codec?
Does it use the file's native resolution?
JJ

I changed the extension to .mp4 and opened it in MediaInfo.
Apparently, it's 1280x720, XDCAM EX 35, ~25MB/s, 24fps.
JJ

fr0sty wrote on 8/27/2018, 1:21 PM

That said, Vegas does use the GPU to help process the timeline effects, but when the effect can only be processed as fast as the CPU can encode it, you shouldn't see much GPU usage as a result.

doubleJ wrote on 8/27/2018, 8:44 PM

How can you tell if the proxy files are actually being used?
I created proxy files for all the videos on my timeline.
When I right-click the clip and view Properties, it shows the original file's information.
I would assume that it would show the proxy file's information or give some indication that the proxy file is being used.
The timeline playback is just as slow as it was before doing the proxy files, but there might be other reasons.
I am using Preview - Full.
I do know that RAM preview resulted in smooth playback.
JJ