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== Transitions == <!--T:1-->
== Transitions == <!--T:1-->
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Transitions govern how '''Kdenlive''' cuts from one clip to the next. You can add many different transition effects using '''Kdenlive's''' transitions.
In '''kdenlive''' a transition is a wipe or dissolve composition between two overlapping clips.
=== How To Add a Transition === <!--T:3-->
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There are two ways of adding transitions in '''kdenlive''': '''Mix clips''', aka same tracks transitions, and the legacy way, which is transitions between clips on different tracks.
Wipes are greyscale images in .pgm (Portable GreyMap) format, and during the transition the composition track will be displayed in the darkest areas of the wipe image first. If the wipe is inversed, the composition track will become visible in the brightest areas of the wipe image first instead. You can download more wipes (by clicking the download button in the wipe composition properties) or create your own and load them by clicking the folder button.
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To add a transition, adjust clips in the timeline so that the end of one overlaps the beginning of another.
Then right-click in the timeline at the overlap point, select <menuchoice>Add Transition</menuchoice> , then choose one of the transitions from the flyout.
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See [[Special:myLanguage/Kdenlive/Manual/QuickStart#transition|QuickStart - transition]]
[[File:Kdenlive_mixed_clip_800.png|left|frame|Kdenlive with mixed clips in the timeline. The toolbar button is circled with red, and the transition properties are on the right.]]
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In kdenlive version 15.12 the effect stack is merged with the "Transition" Tab to create a "Properties" window/tab.
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The Properties window displays the settings for the effects on the currently selected clip (Figure 1) or the settings for the currently selected transition (Figure 2) depending on whether it is a clip or a transition that is currently selected.
[[File:Kdenlive selection param1.png|thumb|left|527px|Figure 1 - Properties when a clip with effects is selected]]
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[[File:Kdenlive selection param2.png|thumb|left|527px|Figure 2 - Properties when a transition is selected]]
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If you select the transition in the timeline [[File:Transition on timeline.png]] its properties will appear in the '''Properties''' tab (Figure 2).
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You should preview your transition to make sure it is running in the direction you expect. For example, if it is a Dissolve transition and it is running in the correct direction, then the first clip should dissolve into the second clip. But if it is in the wrong direction, the first clip will suddenly disappear (replaced by the second track). It will then fade back in and abruptly jump to second clip. If your transition is in the wrong direction, just select the Reverse check box in the Properties tab.
=== Transition Tab (pre version 15.12)=== <!--T:8-->
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If you select the transition in the timeline [[File:Transition on timeline.png]] its properties will appear in the '''Transition''' tab.
If the '''Transition''' dialog is not visible, use <menuchoice>View -> Transition</menuchoice> to add it.
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You should preview your transition to make sure it is running in the direction you expect. For example, if it is a Dissolve transition and it is running in the correct direction, then the first clip should dissolve into the second clip. But if it is in the wrong direction, the first clip will suddenly disappear (replaced by the second track). It will then fade back in and abruptly jump to second clip. If your transition is in the wrong direction, just select the <menuchoice>Reverse</menuchoice> check box in the '''Transition''' tab.
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=== How to create transitions with a single click === <!--T:23-->
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Mix Clips provides a way to add a transition between clips on the same track. To use it:
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There is a shortcut for creating transitions between two tracks that overlap.
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In Version 17.04 you hover the mouse over the lower grey rectangle that appears at the end of the clips on the timeline and a tool tip will appear saying "Click to add Transition". If you click a dissolve transition will be automatically added.
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{{#ev:youtube|e1f0Yc8Fh3c}}
# Ensure that there is at least half a second worth of frames at the end of both clips (outside the timeline clip). Without that, kdenlive will not apply the transition, but display an error message.
# Select either clip. If there are clips in both ends of the one selected, the transition will be added nearest the playhead.
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Older Versions:
Ready to add the transition:
If you hover the mouse over the overlapping region on the timeline, a green triangle will appear. Clicking this adds a dissolve transition between the tracks.
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{{#ev:youtube|h1k7GbEssqA}}
* '''Keyboard:''' Press the <keycap>U</keycap> key.
* '''Mouse:''' double-click at the point where the clips meet. This does not require a clip to be selected.
* '''Toolbar:''' Press the Mix Clips button on the timeline toolbar
The transition length defaults to one second equally distributed between the two clips. You can drag either end of the transition to adjust.
=== Automatic Transitions === <!--T:12-->
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The default transition is dissolve, but you can select (click) the transtion and edit the wipe method and properties as desired in the effect/transition stack window.
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If a transition is set as an "Automatic Transition" and you adjust the overlap between the two clips involved in the transition, then the length of the transition will automatically adjust to cover the region where the clips overlap.
The composition method is set to Luma, and it does not make sense to change that, since there will not really be a transition. Other methods are meant for compositing two videos, not transitioning between them.
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You can toggle off this feature on a transition by selecting the transition and choosing [[Special:myLanguage/Kdenlive/Manual/Clip_Menu#Automatic_Transition|Automatic Transition]] from the <menuchoice>Clip</menuchoice> menu.
* Select the desired wipe from Wipe Method
* The Reverse option reverses the transtion.
* The Softness slider will affect the edges of wipe transtions.
* Set the desired duration
* Since 21.08: select the alignment of the transition, either left, centered (default) or right.
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Transitions will be created with the Automatic transition property set to true by default if the [[Special:myLanguage/Kdenlive/Manual/Timeline/Editing#Automatic_Transitions|Automatic Transitions Button]] is active.
To delete the transition, select it and press the delete key.
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When Automatic Transition is off and you move a clip to change the overlapping region, then the length of the transition does not automatically adjust.
{{Tip|To apply only transitions on either the video or audio track just lock the track on which you don’t want a transition to be applied and add transitions by one of the above ways on the other track.}}
=== Mixing titles, images and Videos with Transitions === <!--T:27-->
=== Transitions between clips on different tracks === <!--T:96-->
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{{#ev:youtube|f6VHlOZutm8|500|left|Image and Title Layers Transparency Tutorial - qubodupl/Open Source Bug}}
This is the legacy way of doing transitions in '''kdenlive'''.
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=== Keyframe Animations Using Transitions === <!--T:15-->
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[[File:Kdenlive_transitions_legacy_god.png|frame|left|To the left the purple one-click circle to add a wipe composition. In the middle the composition bar, and on the right the properties.]]
See also [[Special:myLanguage/Kdenlive/Manual/Effects_And_Transitions|Effects and Transitions]] for an alphabetical list of effects and transitions.
# Adjust your clips so that they overlap.
# hold the mouse wheel over the top clip bottom corner, and click the purple circle appearing (the status bar will say "Click to add a composition"), or alternatively right-click either clip and select <menuchoice>Insert a composition | Wipe</menuchoice>
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See also [[Special:myLanguage/Kdenlive/Manual/alpha_operation_transitions|alpha operation transitions]] for a comparison of the various alpha operation-type transitions (addition, addition_alpha, alphaatop, alphain, alphaout, alphaover and alphaxor) .
The default transition is a dissolve, to change that select (click) the composition bar to show the effect/composition stack window.
* Select a composition track. The default is "Automatic" which is likely the correct choice in this case.
* Select a wipe.
* Enable Inverse to inverse the wipe.
* Enable Revert to revert the order of the videos in the transition (which you probably do not want).
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A: Make clips on two tracks overlap in time, then click the green triangle flashing in the bottom corner of the top clip (see [[Special:myLanguage/Kdenlive/Manual/QuickStart#transition|Transition]]).
If you move or adjust your clips after adding the transition, you need to refit it manually if desired. You can drag the entire transition with the select tool, and adjust its duration by dragging either end.
In kdenlive a transition is a wipe or dissolve composition between two overlapping clips.
There are two ways of adding transitions in kdenlive: Mix clips, aka same tracks transitions, and the legacy way, which is transitions between clips on different tracks.
Wipes are greyscale images in .pgm (Portable GreyMap) format, and during the transition the composition track will be displayed in the darkest areas of the wipe image first. If the wipe is inversed, the composition track will become visible in the brightest areas of the wipe image first instead. You can download more wipes (by clicking the download button in the wipe composition properties) or create your own and load them by clicking the folder button.
Mix Clips
Since 20.12
Kdenlive with mixed clips in the timeline. The toolbar button is circled with red, and the transition properties are on the right.
Mix Clips provides a way to add a transition between clips on the same track. To use it:
Ensure that there is at least half a second worth of frames at the end of both clips (outside the timeline clip). Without that, kdenlive will not apply the transition, but display an error message.
Select either clip. If there are clips in both ends of the one selected, the transition will be added nearest the playhead.
Ready to add the transition:
Keyboard: Press the U key.
Mouse: double-click at the point where the clips meet. This does not require a clip to be selected.
Toolbar: Press the Mix Clips button on the timeline toolbar
The transition length defaults to one second equally distributed between the two clips. You can drag either end of the transition to adjust.
The default transition is dissolve, but you can select (click) the transtion and edit the wipe method and properties as desired in the effect/transition stack window.
The composition method is set to Luma, and it does not make sense to change that, since there will not really be a transition. Other methods are meant for compositing two videos, not transitioning between them.
Select the desired wipe from Wipe Method
The Reverse option reverses the transtion.
The Softness slider will affect the edges of wipe transtions.
Set the desired duration
Since 21.08: select the alignment of the transition, either left, centered (default) or right.
To delete the transition, select it and press the delete key.
Tip
To apply only transitions on either the video or audio track just lock the track on which you don’t want a transition to be applied and add transitions by one of the above ways on the other track.
Transitions between clips on different tracks
This is the legacy way of doing transitions in kdenlive.
To the left the purple one-click circle to add a wipe composition. In the middle the composition bar, and on the right the properties.
To add a transition,
Adjust your clips so that they overlap.
hold the mouse wheel over the top clip bottom corner, and click the purple circle appearing (the status bar will say "Click to add a composition"), or alternatively right-click either clip and select Insert a composition | Wipe
The default transition is a dissolve, to change that select (click) the composition bar to show the effect/composition stack window.
The transition, when added this way, will cover the overlapping area between the clips.
You can:
Select a composition track. The default is "Automatic" which is likely the correct choice in this case.
Select a wipe.
Enable Inverse to inverse the wipe.
Enable Revert to revert the order of the videos in the transition (which you probably do not want).
If you move or adjust your clips after adding the transition, you need to refit it manually if desired. You can drag the entire transition with the select tool, and adjust its duration by dragging either end.
