Kdenlive/Manual/Rendering

Rendering

Information

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Fremstil og brug renderingsscripts

Formål: Når du producerer videoer kan du nemt komme til at bruge meget tid på at redigere klip, projektet og de optagelser du arbejder på. Hvis du nogen side får brug for at eksportere afsnit af din tidslinje for sig selv, så har Kdenlive er smart måde at gøre det på. Du kan indsætte hjælpelinjer i dit projekt til at etablere zoner. Du kan så generere renderingsscripts til at eksportere disse zoner på et senere tidspunkt mens du sover eller er på jagt efter føde. Lad os se, hvordan man gør.

Udvælg afsnit med hjælpelinjer

Begynd med at lægge et klip ind i tidslinjen.

Nu vil vi tilføje en hjælpelinje til et afsnit af klippet i tidslinjen. Du kan tilføje ne hjælpelinje ved at vælge menuen Tidslinje -> Hjælpelinjer -> Tilføj hjælpelinje. Du kan også højreklikke øverst i tidslinjen og vælge Tilføj hjælpelinje. Du kan også redigere de hjælpelinjer du allerede har tilføjet ved at højreklikke på tidslinjen.

Efter at have valgt denne menu dukker der et vindue op, hvor du angiver hjælpelinjens position og med et felt til en kommentar. Det kan aldrig skade at give hjælpelinjen et navn, så jeg giver den navnet Section 1. En mørkeblå linje går nu lodret ned igennem sporene på din tidslinje.

Jeg vil tilføje endnu et par hjælpelinjer og så går vi i gang med at.

The screenshot shows the 6 guides I have put in my project. They chop up the existing clip as I want for my project (that hopefully will become the first hit retro-experimental film...). Now we can export scripts that, when executed, will render these guide zones.

Generating Rendering Scripts

Start by clicking on the Render button in your toolbar, the one with the red circle surrounded by a white and black ring. You can also select this by going to the Menu -> Project -> Render (Ctrl+Return).

The new window gives us many choices about how to render our video. Look at the bottom of the window. We need to select the button Guide Zone. Selecting this will allow us to render our project using the guides we made earlier. Be sure and name the output file to a unique name for each script we will create. Otherwise the scripts will overwrite the different guide zones and not do what you wanted.

We now can choose which guides will establish the regions of video we want to export using the pull down menus next to From and to. I'll cut out the Beginning and instead use section 1 to Section 1 End, the guide names I defined earlier.

Now I can render this to a file or generate a script that will render this guide zone to a file. Click Generate Script and a menu appears asking you to name the script. Kdenlive stores the clips in /yourhomedirectory/kdenlive/scripts

After saving the script, the top tab in the window switches to Scripts. This lists all the scripts you have generated for the current project.

I went ahead and generated 3 scripts based on the guide zones I set up in my timeline. Be sure and keep the .sh extension otherwise the rendering script will not be generated.

Starting Your Rendering Scripts

Once each script is generated, you need to start each one. You should be in the script tab and see your scripts listed. Start the process by selecting the script and clicking the Start Script button. Do this for each script.

After clicking each script, you are switched to the Job Queue tab. Here you will see what script is being run and how many more are waiting to be run. If you have a large queue, you can take advantage of the nifty checkbox in the bottom left: Shutdown computer after renderings.

Summary

Creating guides can help organize your project while you work on it and when you share it with the world. You can use guides to keep track of areas or to generate rendering scripts that will do the mundane task for you. This feature makes exporting sections of your project quite easy. There are also other ways to take advantage of rendering sections and guide zones using guides. Have fun. Explore!