From: Good Guy <good1.2guy@gmail.com>
Date: Tue, 14 Sep 2021 21:09:12 +0000 (-0600)
Subject: more color management tips from Andrea
X-Git-Tag: 2021-09
X-Git-Url: https://git.cinelerra-gg.org/git/?p=goodguy%2Fcin-manual-latex.git;a=commitdiff_plain;h=refs%2Ftags%2F2021-09

more color management tips from Andrea
---

diff --git a/parts/Attributes.tex b/parts/Attributes.tex
index b672a4d..9f466c3 100644
--- a/parts/Attributes.tex
+++ b/parts/Attributes.tex
@@ -198,7 +198,7 @@ range.  16 bit integers were used in the past and were too lossy and
 slow for the amount of improvement.  RGB float does not destroy
 information when used with YUV source footage and also supports
 brightness above 100\,\%.  Be aware that some effects, like
-Histogram, still clip above 100\,\% when in floating point.
+Histogram, still clip above 100\,\% when in floating point. See also \ref{sec:color_space_range_playback} and \ref{sec:conform_the_project}.
 
 \item[Interlace mode:] \index{interlacing} this is mostly obsolete in the modern digital
 age, but may be needed for older media such as that from broadcast
diff --git a/parts/Stuff.tex b/parts/Stuff.tex
index 0c3bc64..2e567ac 100644
--- a/parts/Stuff.tex
+++ b/parts/Stuff.tex
@@ -16,7 +16,7 @@ There are 3 types of copy/cut and paste methods which exist in X windows, and mo
 \end{description}
 
 \subsection*{How Copy/Paste works:}%
-\label{sub:how_it_works}
+\label{sub:how_copy_paste_works}
 
 All of the methods use window \textit{properties} to attach data, called a selection, to a source window.  The program advertises the selection by using the X server.  The window property used determines which selection type is set/advertised by the new selection.
 
@@ -166,6 +166,14 @@ There is now program code to look for RGB versus YUV color model mismatches.  Yo
     \item[YUV color range] default choice is JPEG,   alternate is MPEG
 \end{description}
 
+Some general tips (See also \ref{sec:video_attributes} \textit{Color model}):
+\begin{itemize}
+	\item If your hardware allows it use RGB-Float (in \texttt{Settings $\rightarrow$ Format}); this format does not lead to transfer errors from one model to another, but it uses more cpu.
+	\item Use RGB-8 if the source is RGB and YUV-8 if the source is YUV (most commonly used).
+	\item If you notice alterations in color/brightness representation, try playing with color models in \texttt{Settings $\rightarrow$ Format} and with \textit{YUV color space} and \textit{YUV color range} in \texttt{Settings $\rightarrow$ Preferences $\rightarrow$ Appearance} tab. Another possibility is to check if the display color model conforms to the project color model.
+\end{itemize}
+
+
 \section{Automatic "Best Model" Media Load}%
 \label{sec:conform_the_project}
 \index{color!model}