X-Git-Url: https://git.cinelerra-gg.org/git/?p=goodguy%2Fcin-manual-latex.git;a=blobdiff_plain;f=parts%2FReal-World.tex;h=2ac809107f924c3b44f8cd62478aaec06f019870;hp=c89d219a1bb2c8fba9e9b3cc5f553a236513b7c1;hb=af000e989e1b806fd27864622011a9401ad9d90b;hpb=88392a5f55bd47648523f6365115702772a7b8f9

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@@ -224,3 +224,46 @@ To render, do not forget to uncheck the P (proxy) button in the main program win
 \paragraph{Note:} If our files have Jam-syncing timecodes, we can speed up the workflow (steps 4 - 15) with the simple command : \texttt{Tracks $\rightarrow$ Align Timecodes}.
 
 More info can be found in \nameref{sub:align_timecodes}.
+
+\chapter{FAQ, Known Problems and Workarounds}%
+\label{cha:faq_problems_workarounds}
+\index{workarounds}
+
+There are a few known problems that have not yet been fixed for which there are some workarounds presented here.
+
+\paragraph{Workaround for the \textit{alpha channel not working as intended when using an EDL} inserted as a reference or when an EDL is nested.}
+Using the Projector on the EDL within a Master Project follow these next steps.
+\begin{itemize}
+	\item Open your EDL with \textit{Open EDL} by using the MMB (Middle Mouse Button) on the Nested edit on its track.
+	\item In this nested EDL, insert a new Video track below the last video track.
+	\item Add the Alpha plugin to the new Video track for the entire length of the nested EDL.
+	\item Change the value of the Alpha to 0.00. The Alpha Plugin may be disabled or left enabled.
+	\item Close the EDL.
+\end{itemize} This solves the alpha channel not working as expected and the Master Project now looks correct.
+
+\paragraph{Workaround for using a transition, like Dissolve, between 2 edits with the plugin Motion51.}
+In this case, the Motion51 plugin and the Dissolve transition are not seen during the transition phase
+and is stopped at the cut point between 2 edits.
+The left edit's plugin should be in effect until the end of that clip and should include the
+dissolve.  Instead, there is a jump inside the dissolve, as if the plugin does not exist. There are
+2 possible workarounds.  For example, extend the Motion51 plugin to cover both clips rather than
+having a separate plugin for each clip.  Or another workaround is to use two tracks and have the 
+plugin cover the cut point and use a Fade auto instead of the Dissolve transition.
+
+\paragraph{The Fade auto in certain circumstances produces an unwanted black flash.}
+When you insert an effect on an empty track the fade fades as if it were on a black background;
+it interprets the alpha as black where there is transparency, which is what produces the fade.
+So the problem in the case of text is that the letters appear as a black flash briefly in the first
+few frames, then goes back to transparent, then the fade starts normally with the white color. 
+To avoid the unwanted effect produced by the fade over black (because there is no content) leave
+the fade in/out of the effect at 0 and use the fade line to perform the intended results to
+avoid the problem with the alpha channel. The same problem occurs when using transparent PNG
+images with fade video transitions and can be resolved in the same manner.
+However this workaround can be quite tedious and complicated if you want to fade many snippets of text
+and transparent PNGs on the same track, with always the same video transition filter set to the same 
+duration. 
+
+Just a side note here. Fade in/out in the Title plugin works fine if there is a clip/image above 
+the plugin in the same track without an alpha channel but not if there is no clip/image.
+And the Transition effect works fine when there is a transition between two clips/images without
+an alpha channel.
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