Originally Posted by xayide
Are the MP4-clips rendered in 16-235 or in fullrange 0-255?
The video clips are intended to be standard video levels. Generally this is stated as 16-235, but the levels actually range from 1-254. In video 16 is intended as black and with a computer signal 0 is black.
I tried it on Optoma HD81LV and found that I could actualy see from 0-255 (ie BTB and WTW). Is this bad, should I aim for 16-235 even if I cant get the black darker (0) with decreased brightness?
If you want to be able to see 235-254 is debatable, but generally you don't want to be able to see 1-16 with your final settings. If the display is set based on the input signal there is usually more than enough range to set brightness too low, but I'm not familiar with the projector to comment further.
I have Nvidia drivers set to 0-255 Full range output and CoreAVC set to 0-255 in both input and output with RGB32 selected for Output format.
I'm again not familiar with either the Nvidia or CoreAVC settings, but I'll assume that you are preserving the video (16-235) levels within the computer output. In such a case the display should probably be set to expect video levels (if possible), rather than computer levels. Setting the display to expect video levels will cause the loss of the computer information for 1-16, meaning that normal computer levels will be too dark. On the other hand setting the display to expect computer levels will probably mean that you might not be able to lower brightness enough for video black to be the darkest level on-screen, which seemed to be what you said previously. Another way to handle things would be to expand the video so that it is output as computer levels.