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Improvements for "Video Sequencer" section #104484

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Aaron Carlisle merged 2 commits from Matthew-Hinson/blender-manual:video-sequencer into main 2023-08-07 02:12:56 +02:00
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manual/editors/video_sequencer/introduction.rst
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@ -6,7 +6,7 @@ Introduction
The Video Sequencer allows you to place images, videos, sounds, and scenes The Video Sequencer allows you to place images, videos, sounds, and scenes
on a timeline and combine them into a new video. This section only describes its UI; on a timeline and combine them into a new video. This section only describes its UI;
to read more about its usage, read the :doc:`Video Editing </video_editing/index>` section. to read more about its usage, see the :doc:`Video Editing </video_editing/index>` section.
Editor Layout Editor Layout

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manual/editors/video_sequencer/sequencer/index.rst
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@ -3,16 +3,12 @@
Sequencer Sequencer
********* *********
The Sequencer is composed of two areas (see figure 1). The Sequencer view type shows a timeline (highlighted in red in the figure below).
The *header* is shown in a yellow outline and the *timeline* with a red outline.
Optional, there can be a *Toolbar* at the left and a *Sidebar* at the right; in figure 1 they are collapsed.
.. figure:: /images/editors_vse_sequencer.svg .. figure:: /images/editors_vse_sequencer.svg
:alt: Sequencer :alt: Sequencer
Figure 1: Sequencer and components Components of the Sequencer
Although the Sidebar and Toolbar belong to the Timeline area, they are discussed in a separate section.
.. toctree:: .. toctree::
:maxdepth: 2 :maxdepth: 2

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manual/editors/video_sequencer/sequencer/introduction.rst
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@ -3,12 +3,22 @@
Introduction Introduction
************ ************
This Sequencer view is where strips can be :doc:`selected </video_editing/edit/montage/selecting>`, The Sequencer view is where all the video editing happens. It shows a stack of
:doc:`modified </video_editing/edit/montage/editing>` by moving, cutting, or extending strips. :doc:`Channels </editors/video_sequencer/sequencer/channels>`,
There are also several built-in :doc:`effects </video_editing/edit/montage/strips/effects/index>` which are similar to layers in an image editing program (higher channels are displayed
in front of lower ones). Within each channel, you can create one or more
:doc:`strips </video_editing/edit/montage/strips/introduction>`, which
contain either a segment of video content (a rendered scene, an external video file...)
or an :doc:`effect </video_editing/edit/montage/strips/effects/index>` (color blending,
blurring...).
:doc:`select </video_editing/edit/montage/selecting>` and
:doc:`modify </video_editing/edit/montage/editing>` strips.
There are also several built-in
that can be combined with other strips to change their appearance. that can be combined with other strips to change their appearance.
The Sequencer view is horizontally divided into :doc:`Channels </editors/video_sequencer/sequencer/channels>` The Sequencer view is horizontally divided into
each channel can contain what is called a strip. each channel can contain what is called a strip.
A strip can be an image, animation, or any number of effects. A strip can be an image, animation, or any number of effects.
Each channel is numbered consecutively on the Y axis, Each channel is numbered consecutively on the Y axis,
@ -18,9 +28,3 @@ as it needs as long as they do not overlap. If a strip needs to overlap another,
it needs to be placed on a channel above or below the other strip. it needs to be placed on a channel above or below the other strip.
When strips are stacked, they stack from bottom to top where the lowest channel When strips are stacked, they stack from bottom to top where the lowest channel
forms the background and the highest the foreground. forms the background and the highest the foreground.
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Aaron Carlisle commented 2023-08-06 21:15:16 +02:00
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I believe this is still an important factoid and shouldn't be removed.

I believe this is still an important factoid and shouldn't be removed.
Matthew Hinson commented 2023-08-06 22:33:41 +02:00
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Thank you for reviewing. As a newcomer to Blender, I was sadly more confused than informed after reading this note.

The first channel 0 is unusable as a place to put strips.

There is no such channel. (Old Blender versions appear to have had it, but even in version 2.93, channels start at number 1)

This is because it is used by the :doc:Sequencer Display </editors/video_sequencer/preview/introduction>

The link is named after the "Sequencer" view type, but points to the "Preview" view type - which is it?

to show a composite of all strips above channel 0.

I've done a bunch of experimenting with the VSE already, but never saw the empty area below Channel 1 display anything.

Is this area meant to show the union of all the strips, just like the "Summary" row in the Dope Sheet editor shows the union of all the keyframes? (In which case, how do you make it display something?)

Or is it an implementation detail for the Preview pane to render the composited video? (In which case, what benefit do users get from knowing this?)

Thank you for reviewing. As a newcomer to Blender, I was sadly more confused than informed after reading this note. > The first channel 0 is unusable as a place to put strips. There is no such channel. (Old Blender versions appear to have had it, but even in version 2.93, channels start at number 1) > This is because it is used by the :doc:`Sequencer Display </editors/video_sequencer/preview/introduction>` The link is named after the "Sequencer" view type, but points to the "Preview" view type - which is it? > to show a composite of all strips above channel 0. I've done a bunch of experimenting with the VSE already, but never saw the empty area below Channel 1 display anything. Is this area meant to show the union of all the strips, just like the "Summary" row in the Dope Sheet editor shows the union of all the keyframes? (In which case, how do you make it display something?) Or is it an implementation detail for the Preview pane to render the composited video? (In which case, what benefit do users get from knowing this?)
.. note::
The first channel 0 is unusable as a place to put strips.
This is because it is used by the :doc:`Sequencer Display </editors/video_sequencer/preview/introduction>`
to show a composite of all strips above channel 0.