Moho Forum

NO BANDING!

10 bit has a dynamic range out the wazoo (technical term).

My only use of it was with Animation:Master but you can take a dark shadowy image and brighten it up with out losing any detail. The shadow detail is there you just can't see it. You can shift things all over the place. Turn a night image into day... a day image to night.

The problem of course is having that dynamic range in the image to begin with. You have to have that detail either by scanning or rendering whatever.

What this means for movie production is adjusting the color and brightness. They can shift it around and not worry about detail loss. For 3D or animation stuff it allows you to completely change the rendered image without having to rerender.

Not an expert here, just going from the little I've seen and heard.

-vern

There is more information for Luma channels, and I believe Chroma channels...thats the extra 2 bits.

It will give you both, but especially on the banding issue. The dynamic range is so great that something that appears black to our eyes may have fully detailed image data in that dark area. When you color correct you can bring tha detail out. The same with blown out white images like a chandelier, may have all that detail in the data and a compositor can bring it back out.

I don't think greater than 8 bit really gives us much for TV, but the movie is going to film for big screen presentation. 8 bit does show banding on the big screen if one is not very careful.

LittleFenris wrote:There is more information for Luma channels, and I believe Chroma channels...thats the extra 2 bits.

Yes. If 8 bit is 256 colors per channel, then 10 bit is 1024. Imagine RGB 1024, 1024, 1024 to choose from. We can't really see it.

T

artfx wrote:I don't think greater than 8 bit really gives us much for TV, but the movie is going to film for big screen presentation. 8 bit does show banding on the big screen if one is not very careful.

This is exactly why for most of the stuff I edit, I just bring it in at 8 bit. I don't have all the storage space in the world and the extra 2 bits is useless for most of my applications.

As far as 10 bit being more than we need for TV (if you are talking NTSC) then yes that is true...but think more to the future since it won't be long before HDTV is what everything is broadcast in and if you are making something now, you might as well make it future proof. You'll notice even 2D animation (like Afro Samurai) that is coming out now is done in 16:9 and not the standard 4:3 that it has been done in for TV for the past 50+ years.

16:9 yes. The extra resolution of HD, most definitely, but 10 bit color? They won't see it.

There's a great article on Cinematech about just how much do you really see with that brand new HDTV. The conclusion was basically that unless you have 100 foot screen and one of the super expensive digital projectors, all the resolution and color detail is lost on the human eye.

The most popular HDTV's sold today are LCD and Plasma, neither of which show more than 8 bit color space. Then you have delivery formats of Blu Ray, HD-DVD, online, digital broadcasts. all are heavily MPEG compressed and few are more than 8 bit color space.

I don't think we need to worry about dealing with those huge files for a while. But we should definitely be thinking 16:9 HD content. Me? I am fan of 1280x720 24P. It uprezzes fine to full HD and no one can tell, and its so much easier to deal with.

T


T

Yes, I switched all my stuff to 16x9 1280p in late 2003, when I noticed all the new anime broadcasts and stuff from the UK was coming out that way. Figured I ought to prepare for the future, and since I work in vectors the resolution was no problem.