Whites crushed after render

essami wrote on 4/1/2008, 4:17 PM
Hi,

I'm looking for practical advice for a problem I have.

On Vegas preview window everything looks good (see image Before-render.jpg) and after I render it to mp4 file via Mainconcept templates it comes out with highlights crushed (after-render.jpg). Can you help me achieve the look that I see in my preview window (Before-render.jpg)?

http://escycle.com/temps/Before-render.jpg
http://escycle.com/temps/After-render.jpg

I havent messed with any RGB conversions. Only done a lot of color correction with color curves in Vegas 8. Original files are MXF files from EX1 camera.

Thank you!

Sami

Comments

craftech wrote on 4/1/2008, 7:29 PM
You are probably working in 8-Bit instead of 32-Bit. Switch your project properties if you are.

John
UKAndrewC wrote on 4/2/2008, 3:33 AM
MP4 works in a different colour space to DV or MPEG so that needs to be compensated for.

Apply the Studio RGB to Computer RGB preset to your project before rendering (either from the levels or secondary color corrector filter).

You also need to do this when preparing a project for FLV which also uses computer RGB.

Andrew
farss wrote on 4/2/2008, 3:47 AM
Um, he's clipping the whites so me thinks that computerRGB to StudioRGB would be the way to go if anything.
Bob.
GlennChan wrote on 4/3/2008, 1:41 PM
Did you render in 32-bit but are now viewing the clips in an 8-bit project? That might be why.

Otherwise I'm not seeing the same results as you. What settings are you using for the color curves? What happens if you disable the color curves?
Bill Ravens wrote on 4/3/2008, 6:30 PM
way tooooo complicated...get real, it shouldn't be this hard.
dysfunctional as hell. would you invest in this crap if your life depended on it? not me!!
essami wrote on 4/4/2008, 3:30 AM

I gave up with mainconcept and I am rendering to Windows media video instead. This gives me consistent workflow from start to finish.

thanks for trying to help, sorry im not answering any questions specifically but in short i can answer tried it all and nothing worked :(
Serena wrote on 4/4/2008, 6:27 PM
Looking at your two images and noting the waveform monitor, the result is much as I would expect. If you use levels to bring the waveform to 100 before rendering I think it will work out, even noting Bill's helpful contribution.