2015-09-08, 00:03
(2015-09-07, 23:56)Doom10 Wrote:(2015-09-07, 22:17)Warner306 Wrote:(2015-09-07, 15:59)Doom10 Wrote: Why should we do double conversion in films? What is the logic behind it if our TV does 0-255?
If i am not wrong with that configuration:
- films: 16-235 -> 0-255 -> 16-235 (two conversions)
- games, desktop, etc: 0-255 -> 16-235 (one conversion)
Shouldn't it better?
(LAV Video) All Output Formats -> (madVR) PC levels (0-255) -> (GPU) RGB (0-255) -> (TV) Output as RGB 0-255
Which means:
- films: 16-235 -> 0-255 (one conversion)
- games, desktop, etc: 0-255 (none conversion)
Am i wrong?
Most TVs won't do RGB 0-255, so that option isn't mentioned. If your TV does, then go right ahead.
I think most TVs nowdays do 0-255. Samsung, LG, etc. call it different (high, normal, low, etc ... black levels).
I think it is a mistake if your guide doesn't mention the best configuration for htpc. New users with TV that does 0-255 will configure wrong their GPU output.
No, it is definitely not a mistake. Using your TV's full range option is not recommended:
Q: My TV supports Full mode, shouldn’t I use this?
A: No. TVs support Full to make them easier to calibrate. Most TVs will not display a black level below 16 because video content should never have it. By letting you see Black 15 or 14, it can make it easier to calibrate the display and get the black level correct. However, you really should not use this as your main setting as most displays are not designed to display levels below 16, and often introduce color tints when doing white levels past 240 or so. Additionally, if you restrict yourself to levels 16-235 you wind up with a brighter image with a better contrast ratio, as you can turn up the contrast level higher. Contrast Ratio is the thing your eye notices most, and so it will produce a more pleasing image.
