@Dexcon If I use SeMW's PC preset or VEGAS Levels (Studio RGB to Computer RGB preset) in preview window, it will make all pictures more contrast than what it orignally looks outside VEGAS Pro. 

Take care to apply SeMW to the project as a whole when fades are used!

Take care to apply SeMW to the project as a whole when fades are used!

SeMW or VEGAS Levels to the project make all my picture looks more contrast than its orignal look!

@rock-c … At the project level, yes. If you only want an FX apply to events only on one track, you can also use the fx icon in the track header to add the FX. Doing it this way means that the FX only applies to the video events on that track.

Re 0-255 v 16-235, there have been many discussions about this on the forum over the years. Perhaps use the forum's Search field at the top of the forum (using 0-255 as the search parameter) to access those discussions.

@Dexcon SOS, My pictures and videos are distributed in all tracks and position of the timeline. They are several hundreds messy with each other.  If I apply SeMW or VEGAS Levels to tack, It indeed make video events in preview window look normal, but It will also make pictures of this track look abnormal (more contrast) in preview window.

I can't apply a "studio RGB-> computer RGB" to video events (not picture events) one by one.

https://www.vegascreativesoftware.info/us/forum/faq-why-does-my-video-have-more-contrast-than-the-vegas-preview--104567/

https://www.vegascreativesoftware.info/us/forum/vegas-pro-levels-last-and-final-1--120319/

(e.g.)

@vkmast I have added a SeMW or VEGAS Levels to preview. It indeed make video events in preview window look normal. However it make all pictures in preview window looks abnormal (more contrast).

@rock-c … the purpose of Studio RGB to Computer RGB is generally only used so that color grading/adjustment can be made on the computer to replicate the look of what the video will look like on a typical TV screen. If your project is not destined for display on a TV - i.e. other computer screens - then you may not need to color grade for TV display and therefore there probably wouldn't be a need to add the Studio RGB to Computer RGB FX.

If you DO want to add this FX to your project but don't want to add it to each video event individually, then please follow my first suggestion and add it at the project level so that the FX affects ALL video events in the project.

It should be pointed out that the VEGAS Levels FX should be turned off (i.e. unchecked) before rendering to avoid an overly contrasty render. The Studio-Computer present is only used for preview in Vegas Pro. I understand that SeMW turns itself automatically when rendering though I can't personally attest to that.

the purpose of Studio RGB to Computer RGB is generally only used so that color grading/adjustment can be made on the computer to replicate the look of what the video will look like on a typical TV screen.

There seems to be some errors? "Studio RGB to Computer RGB" seems to replicate the look of computer's and website's players, not typical TV screen.

@vkmast I have added a SeMW or VEGAS Levels to preview. It indeed make video events look normal. However it make all pictures looks abnormal (more contrast).

You have to remove it before you render.

Or

you use second monitor for grading:

which you set up like this:

Then you grade for that second monitor.

Good luck! :)

@rock-c ... just a thought, In Project Properties/Video/Pixel Format, what setting have you used? It wouldn't be 32-bit by chance? Unless your acquisition camera recorded in 32-bit, only use the 8-bit selection. Selecting 32-bit for 8-bit video can of itself oversaturate etc the image and may cause unwanted distortions in some transitions and FX.

@vkmast I have added a SeMW or VEGAS Levels to preview. It indeed make video events look normal. However it make all pictures looks abnormal (more contrast).

You have to remove it before you render.

Sorry, this sentence should be "I have added a SeMW or VEGAS Levels to preview. It indeed make video events in preview window look normal. However it make all pictures in preview window looks abnormal (more contrast)."

Or

you use second monitor for grading:

which you set up like this:

 

Then you grade for that second monitor.

Good luck! :)

It is a method! However, I just have one monitor, crying....

@rock-c ... just a thought, In Project Properties/Video/Pixel Format, what setting have you used? It wouldn't be 32-bit by chance? Unless your acquisition camera recorded in 32-bit, only use the 8-bit selection. Selecting 32-bit for 8-bit video can of itself oversaturate etc the image and may cause unwanted distortions in some transitions and FX.

My materials are downloaded in network. They are all 8-Bit depth.

it make all pictures in preview window looks abnormal (more contrast)

Yes, that's what it supposed to do.

Please refer to my previous comment:

the purpose of Studio RGB to Computer RGB is generally only used so that color grading/adjustment can be made on the computer to replicate the look of what the video will look like on a typical TV screen

@Dexcon In vegas preview window, picture is 0-255, video is 16-235.

Adding a SeMW or VEGAS Levels to track or preview window will make video be 0-255, and picture be (-16)-275.

Is there any way to make them all 0-255? SOS.

If you don't want your 0-255 video converted to 16-255, then don't use SeMW or VEGAS Levels.

If you don't want your 0-255 video converted to 16-255, then don't use SeMW or VEGAS Levels.

I don't want but VEGAS preview window automatically turn it to 16-255 when dragging it to timaline .

Orignal 0-255 video is more contrast than VEGAS preview window's 16-255 video.

@vkmast I have added a SeMW or VEGAS Levels to preview. It indeed make video events in preview window look normal. However it make all pictures in preview window looks abnormal (more contrast).

Keep all photos on a track without videos and then at the track level apply the opposite levels Fx (computer to studio) to bring contrast down to normal.

Vegas doesn't do any autoconversions of levels so you need to handle this manually.

My last comment ...

I am completely confused. You started saying that using SeMW/VEGAS Levels made the image more contrasty in the preview window, but now you are saying the complete opposite in that your original 0-255 video is more contrasty than the preview window. I can't see how I can assist any more.

@vkmast I have added a SeMW or VEGAS Levels to preview. It indeed make video events in preview window look normal. However it make all pictures in preview window looks abnormal (more contrast).

Keep all photos on a track without videos and then at the track level apply the opposite levels Fx (computer to studio) to bring contrast down to normal.

Vegas doesn't do any autoconversions of levels so you need to handle this manually.

That's unpractical ... Pictures and Video are dozens even hundreds. And many pictures are applied composite mode and they have complicated covering relationships ...

I am completely confused.

Sorry for my poor English.

You can have thousands of pictures, but they need to be on their own track so you can do an adjustment using Track Fx, or you have to apply the levels fix to each one individually (if you're fading into a video or something). That's how I've handled it.

Alternatively you can do the adjustment to all the video files if they are on their own track or tracks.

Another option would would be to batch apply this edit to images using Photoshop before they even enter Vegas.

Otherwise, consider using video editing software that can read file metadata and handles this automatically. Resolve and Final Cut do this I believe.