Problem Rendering White

Movick wrote on 11/18/2009, 5:03 PM
Hi all,

I'm still using V5.0 and I'm having an issue with rendering pure white. I'm creating a Flash-like video which will be embedded into a white page on a website. For whatever reason, the white background in the video renders out as grayish - at least 3-4 shades darker than pure white. I know my background is pure white: 255,255,255, yet it renders off color. Can anyone make any suggestions please?

Thanks!!
Mov

Comments

rs170a wrote on 11/18/2009, 5:50 PM
What format/codec are you using for the render?

Mike
Movick wrote on 11/18/2009, 6:01 PM
Tried.wmv and uncompressed .avi. Don't remember having this problem before.

Thanks
rs170a wrote on 11/18/2009, 6:11 PM
Have you tried bringing the rendered files back into Vegas and looking at them on the waveform display to see if there is a difference?

Mike
Movick wrote on 11/18/2009, 6:14 PM
No. Never had a need to use it. What could be the cause of this?
rs170a wrote on 11/18/2009, 6:20 PM
Unfortunately I have absolutely no idea.
I'm trying to rule out your Vegas renders as a problem.
I just put the "Pluge and Porches" test pattern on the timelines in Vegas 7, 8 & 9, rendered it out as uncompressed and a 3 Mbps WMV, brought them back in and compared them on the waveform display to make sure the renders didn't change the levels.
As expected, they didn't so I'm making sure yours don't either.

Mike
Steve Mann wrote on 11/18/2009, 10:09 PM
How are you determining that it is not white?
MPM wrote on 11/19/2009, 10:05 AM
>"...having an issue with rendering pure white... the white background in the video
> renders out as grayish... Can anyone make any suggestions please?"

Is anything set to TV scale? The reduced colorspace range could do it. With a still from your video in P/Shop or other image editing software you should be able to see the numbers, i.e. 244, 244, 244 etc. Might give a clue, &/or verify that your graphics drivers aren't adjusting video for you on playback -- ATI can do that. Render a short avi, open in V/Dub, copy/past a frame into your image editor? That might eliminate Vegas, &/or the codec, &/or driver compensation &/or conversion to TV colorspace.
GlennChan wrote on 11/19/2009, 8:18 PM
It would be easier to follow your problem if everybody just stuck to the other thread on your problem, e.g.
http://www.sonycreativesoftware.com/forums/ShowMessage.asp?MessageID=682923&Replies=6