Vegas 12 renders not using 100% CPU

kayne wrote on 1/12/2015, 4:51 PM
Hey all I have a question about how Vegas 12 renders (CPU mode, not GPU).

I've got two versions of some video, 1080p 60fps source.
The first clip is two streams for 3d - cpu utilization is 30% and render takes 6 hours.
The second clip adds lots of additional views (ie 1 camera per tire on an OHV), total of 7 streams, all the same format. for this clip CPU utilization hits 90% and the render takes 6 hours

I'm doing all this work on SSD so don't think I am IO constrained but I'm struggling to figure out why the 2 stream clip doesn't render much faster than it is.

Any suggestions?

Comments

musicvid10 wrote on 1/12/2015, 4:55 PM
There are decoders, muxers, filters, encoders, all in the work path. That's why.
OldSmoke wrote on 1/12/2015, 5:02 PM
Have you tried disabling "smart resample"? Since you work with progressive footage and I assume rendering to progressive you can actually turn that off. That may reduce your render time.

Proud owner of Sony Vegas Pro 7, 8, 9, 10, 11, 12 & 13 and now Magix VP15&16.

System Spec.:
Motherboard: ASUS X299 Prime-A

Ram: G.Skill 4x8GB DDR4 2666 XMP

CPU: i7-9800x @ 4.6GHz (custom water cooling system)
GPU: 1x AMD Vega Pro Frontier Edition (water cooled)
Hard drives: System Samsung 970Pro NVME, AV-Projects 1TB (4x Intel P7600 512GB VROC), 4x 2.5" Hotswap bays, 1x 3.5" Hotswap Bay, 1x LG BluRay Burner

PSU: Corsair 1200W
Monitor: 2x Dell Ultrasharp U2713HM (2560x1440)

Lovelight wrote on 1/12/2015, 9:26 PM
The reason is Sony Vegas code is not good by today's standard. Try opening an avchd video file and watch Sony take 2 minutes opening it. The same video file opens in seconds in other video editors.

It will never change unless they rewrite the entire program from the ground up.
John_Cline wrote on 1/12/2015, 9:43 PM
That is entirely your opinion.
VideoFreq wrote on 1/12/2015, 11:38 PM
Love, your GPU opens your files and displays their thumbnails. Since you don't list your system specs we can't tell what you are using to open AVCHD files with. Two minutes/file is s l o w. I will start a wedding project with five streams, three of which are AVCHD codec. I'll load 200-300 clips per cam and it "only" takes about 15 minutes for them all to load and render. Now, once they are all loaded and the project starts, it takes about 8 minutes for the two hour video project to reload.

My graph card is a QFX-4600 using SVP 12-770. AVCHD files used to load faster with my GTX-660 but Vegas hated the Kepler Architecture in editing and rendering. Personally, I like editing AVCHD in Vegas. Editing AVCHD choked in AVID Studio, AVID MC5.5, Pinnacle, and especially in Adobe PP5.5 and Cyberlink 9, 10 & 11. I have them all and LOVE Vegas Pro (although I miss those goofy Pinnacle plug-ins that did quick PIP SFX).