Preview corruption

AVsupport wrote on 12/6/2018, 5:38 PM

Had some heavy quick editing done the other day, rearranging a timeline with XAVC-S 1080/50 timeline containing various speed curves, crossfades, colour grades...

I was trying to speed up the preview framerate by choosing Draft/Full instead the usual Preview/Full. Ended up with timeline corruption, flickering images, wrong thumbnails in timeline clips, overall strange behaviour and eventual crashes. Anyone else had these issues before?

Comments

Musicvid wrote on 12/6/2018, 6:29 PM

I think Draft tries to decimate fields, which of course your source does not contain.

Some more tips here, but with the amount of stuff you've got, the problem may require prerender.

https://www.vegascreativesoftware.info/us/forum/faq-how-can-i-make-my-video-preview-play-smoothly-in-vegas-pro--104624/

https://forums.creativecow.net/docs/forums/post.php?forumid=24&postid=16974&archive=T

AVsupport wrote on 12/6/2018, 7:20 PM

thanks @Musicvid, still hoping for intelligent background rendering, and GPU timeline playback acceleration; I would consider my PC rig fast enough not having to drop quality or fx if VP was using the resources appropriately..

Musicvid wrote on 12/6/2018, 7:49 PM

Oh, a disguised feature request. Sorry I couldn't help you with that.

AVsupport wrote on 12/6/2018, 8:28 PM

attempted bug report that turned into a rant. sorry.

OldSmoke wrote on 12/6/2018, 9:23 PM

thanks @Musicvid, still hoping for intelligent background rendering, and GPU timeline playback acceleration; I would consider my PC rig fast enough not having to drop quality or fx if VP was using the resources appropriately..

Is the i5 system in your signature your current editing machine?

AVsupport wrote on 12/6/2018, 9:26 PM

yes it is @OldSmoke with the nVidia 1060/6

/edit: just found this..

https://www.tomshardware.com/reviews/cpu-hierarchy,4312.html

so even if it's not an i7, it's not a slow CPU either (it'll be faster than a Ryzen Threadripper)

OldSmoke wrote on 12/6/2018, 10:04 PM

yes it is @OldSmoke with the nVidia 1060/6

/edit: just found this..

https://www.tomshardware.com/reviews/cpu-hierarchy,4312.html

so even if it's not an i7, it's not a slow CPU either (it'll be faster than a Ryzen Threadripper)

@AVsupport I will not make any comments about your hardware, that would be pointless. I do however offer one advice. Ensure that your memory speed set in your bios doesn’t go beyond what the CPU’s memory controller can handle. While overclocking your memory may seem fine in the beginning, problems will slowly creep, slow enough that you will not suspect it to be the root of the problems.

AVsupport wrote on 12/6/2018, 11:59 PM

I don't consciously overclock my memory, nor my CPU. But it's an interesting thought, nevertheless @OldSmoke!

investigation: Mobo https://www.msi.com/Motherboard/Z370-PC-PRO/Specification supporting up to 2667MHz (not overclocked), my 2x8GB XMP2.0 paired RAM slabs are DDR4-2133 (1066MHz)