V7 playback on a Dual-Core ?

FrigidNDEditing wrote on 9/13/2006, 2:25 PM

I got a 6fps playback rate increase on 3D compositing from 6d to 7a.

On a Core Duo dual core 1.83 Ghz.

Dave

Rosebud wrote on 9/14/2006, 12:14 AM

Many thx Dave.
Please, can you tell me witch frame rate you get on V6 and V7 ?
Witch preview quality ?
External monitor ?

TIA

Wes C. Attle wrote on 9/14/2006, 6:50 AM

If you mean like .m2t preview, yes it is better than v6. But for me it was already great in v6 anyway.

rmack350 wrote on 9/14/2006, 7:35 AM

Staight SD DV25 now plays back at 60 FPS! Playback is sooo much faster!

Okay, just kidding.

There are more preview settings to play with, like the scaling feature and simultaneous playback. Out of the box, Vegas is configured to do more during playback so an immediate comparison is hard. However, simultaneous playback while scaling is very good.

Rob Mack

fldave wrote on 9/14/2006, 3:18 PM

Don't have dual core (P4 3.2 HT) but it is better.

m2t HDV clip, small preview (360x270):

Best Full ---- V6: 9 to 11 fps -------- V7: 15 fps
Best Auto ---- V6: 6 to 7 fps -------- V7: 20 fps
Good Auto ---- V6: 10 to 12 fps -------- V7: 29.970 fps
Preview Auto ---- V6: 29.970 fps -------- V7: 29.970 fps

FrigidNDEditing wrote on 9/14/2006, 6:45 PM

I went from 7-9 fps on preview full with 3 planes of video each placed in their own video plane in 3D space then rotating that in a parent 3D motion on all 3 axis of rotation. I then opened that same veg in Vegas 7 and I saw it go to 15 FPS pretty consistantly. These were SD video files and all the same one so it wasn't being restricted by HDD speeds, this was pure processing improvement..

Hope that helps, rose

Dave

Wolfgang S. wrote on 9/15/2006, 2:31 AM

Be aware, that it makes a huge difference, if you activate or deactivate the internal preview - so, if you use the windows seconday display with or without the internal preview. When you deactivate the internal preview, the fps are increased significanlty on many PCs.

You can deactivate the internal preview in preferences/preview device/„display frames in video preview window during playback”.

Hope that is helpful.

Rosebud wrote on 9/15/2006, 9:04 AM

Thank for your answers.
It is very instructive for me.

fldave wrote on 9/15/2006, 9:20 AM

Wolfgang, you're very right! My frame rates above were on internal preview only.

Yikes!

External monitor preview, internal off, Best Full, m2t on timeline, no FX:

V6 - 9-10 fps
V7 - 29.970 pegged

Life is good!

fldave wrote on 9/15/2006, 5:01 PM

Thought re. external preview: Could this be a DirectShow implementation change from V6? My external link is DVI through a second video card to the monitor. The performance is simply instantaneously 29.970 Best Full.

Could this be the first GPU-assisted feature in Vegas?

This weekend I will install V7 on my trusty Dual Pentium 3 machine (with nVidia 6600) and see if I can get m2t high def footage to play back at 29.97fps on my 65" Sony HDTV. That would surely answer the question. I can already play back wmv 720p on the TV using that machine using Nero Showtime 3.0 with my nVidia card.

GlennChan wrote on 9/15/2006, 8:42 PM

It's probably not GPU assistance... I've talked a little bit with some of the developers at NAB, and they weren't so big on GPU assistance.

Vegas still probably works on the Video for Windows architecture.

What it probably is is smart indexing tricks for the MPEG2 stream... this is because MPEG2 has i-frames, b-frames, and p-frames. The compression FAQ provides a little information on this:

http://www.faqs.org/faqs/compression-faq/part2/

There might be some other things going on too, since Vegas 6.0d was better than 6.0 and neither are as good as Vegas 7.