Friday, August 11, 2017

graphics - 24-Bit Colordepth not enough?


I noticed that in very soft gradients, the 24-Bit colordepth is not enough as you can see the transitions of the color. This pops out the most in dark scenes or night skies.


Why doesn't anybody change the colordepth to two bytes per channel? I know that would be alot of work and a lot of hardware would have to be repalced, but I find it a bit annoying. I really don't think that the technology of the hardware isn't mature enough.


So why is no one doing that?


Here's a picture of "The War Z" where you can see what I mean:


The War Z color transitions



Answer



You more or less said it yourself: 'I know, that would be a lot of work and a lot of hardware would have to be replaced.' While the graphics-hardware end of things would actually be relatively straightforward (if expensive - doubling the size of all textures and frame buffers is far from trivial), the 'ecosystem' for higher color-depth imagery simply isn't in place to the kind of extent that makes this a worthwhile expenditure on anyone's behalf, as no LCD manufacturers are focusing on trying to get up to 16 bits per pixel (though there have been some experiments at 10BPP, which conveniently still fits an RGB signal into a 32-bit channel).



In short, it's simply too much work for what most people consider yet to be too little gain. It may well be 'a bit annoying', but that annoyance level is so slim that other improvements to image quality have been taking priority.


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