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Different brightness in preview & render when compared with original.
I have some .vob files that i ripped from a DVD myself a while back, but I’ve noticed that for some reason Vegas is showing a different overall colour to what i see in the preview window, as well as rendering.
Here’s a comparison of how a file opened in Vegas compares to a file opened in VLC with the default 8 bit pixel format:
I can’t say I’ve noticed this before, seems like it only happens with some files.
I changed the pixel format to 32 bit floating point (full range), as well as view transform off and got this:
I think it’s pretty accurate like that, it’s hard to tell if it’s 100% accurate as i can only guess by looking at it.
But why does this happen in the first place? I thought Vegas would show the proper colours/brightness to begin with. I’ve also read around and people usually don’t recommend to set anything but 8 bit in the project properties.
Why doesn’t Vegas import the video to it’s actual colours? At least it seems like it doesn’t.
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10 Replies
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[james spicer] “Why doesn’t Vegas import the video to it’s actual colours? At least it seems like it doesn’t.”
James, put up a Vegas Scope and view the results. Hint1: You’re viewing the output within VLC and then comparing that to the VP internal Preview. What we get with VP are the TRUE view of content. How we THEN render and on what Viewer we watch content needs to be considered by you. Hint2: VLC is “crushing” those blacks/darks. Hint3: You’re viewing VLC on your PC.
VP isn’t doing anything wrong at all. Understanding your Preview workflows is now what you need to wrangle.
* Grazie
Video Content Creator and Potter
PC 7 64-bit 16gb * Intel® Core™i7-2600k Quad Core 3.40GHz * 2GB NVIDIA GEFORCE GTX 560 Ti
Cameras: Canon XF300 + PowerShot SX60HS Bridge -
Hi Graham.
I’m still not really fully understanding.
I rendered out this short clip from Vegas and it still looks the same as the preview even in VLC. So if it’s the players crushing the blacks how come it’s not doing it with this clip rendered from Vegas?
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[james spicer] “I rendered out this short clip from Vegas and it still looks the same as the preview even in VLC. So if it’s the players crushing the blacks how come it’s not doing it with this clip rendered from Vegas?”
Erm? Now I don’t understand this comment in conjunction with your original post.
* Grazie
Video Content Creator and Potter
PC 7 64-bit 16gb * Intel® Core™i7-2600k Quad Core 3.40GHz * 2GB NVIDIA GEFORCE GTX 560 Ti
Cameras: Canon XF300 + PowerShot SX60HS Bridge -
Thanks Mike. ????
* Grazie
Video Content Creator and Potter
PC 7 64-bit 16gb * Intel® Core™i7-2600k Quad Core 3.40GHz * 2GB NVIDIA GEFORCE GTX 560 Ti
Cameras: Canon XF300 + PowerShot SX60HS Bridge -
You’re welcome Grazie. I know it’s a lot to take in but hopefully James can get something out of it.
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Mike, thanks for the link, so Vegas is changing the colour of the preview but it’s not supposed to change the exported video.
@Graham, yes i found out that even exported video also doesn’t look as it should. But it looks like what’s happening is that rendering in x264 is making the video look brighter, so it basically ends up looking the same as it does in the Vegas preview window even in VLC.
I like using x264 so I’m not sure why it’s doing that, i tried exporting to pal SD YUV & also MP4 and it looks the same as the original VOB in VLC. I think i messed with every setting in x264 and it always comes out looking too bright, or inaccurate colours/brightness at least compared with the original file.
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x264 & xvid look washed out after rendering, i did 4 different renders and only the bottom 2 in the attached image look as they should to me.
Does anyone know why this happens? I’ve done a search and some suggested to change colour settings in the Nvidia control panel, i already changed the dynamic range to full 0-255 and it hasn’t made a difference.
Confused.
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Alright so i did a bit more looking around on Google, i tried a Sony AVC/MVC render as was suggested and it looks fine. There was also a suggestion to use Levels FX on the video using the preset: studio RGB to computer RGB, i did that and the render as well as the preview looks like the original file now and not kind of washed out looking.
I’m not sure if other video editing programs are like this, I’ll have to check out lightworks. But at least it seems I know how to fix this in Vegas now.
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Oops, forgot to say that adding the Levels FX fixed the colours for me while also rendering in x/h264. At least it looks accurate from my eyes right now.
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