0002816: Composite transition behaviour counterintuitive with 3 tracks

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Project

Category

View Status

Date Submitted

Last Update

0002816

Kdenlive

Transitions

public

2012-11-04 17:28

2013-03-08 18:51

Reporter

camillem

Assigned To

Priority

normal

Severity

minor

Reproducibility

always

Status

new

Resolution

open

Platform

64 bit

Ubuntu

OS Version

12.10

Product Version

0.9.2

Target Version

Fixed in Version

Summary

0002816: Composite transition behaviour counterintuitive with 3 tracks

Description

Hi,
The behaviour of the Composite transition with 3 tracks is rather surprising as compared to other common applications. I couldn't find any documentation to determine if it's a bug or intended to work this way.
Basically, if your top track has a 100% opacity but is above to other tracks with a non 100% opacity Composite transition between them, you will see the lowest one mixed with the top one (the middle one being absent). What I would expect would be to see only the top one.

Steps To Reproduce

-Create a new projcet
-Add 3 clips to the project
-Put One clip on each video track, all starting at 00:00
-Add a composite transition between the 1st (top) and 2nd track with default settings ("over" and 100% opacity). Extend the length of the transition to cover the whole lenght of the clip
-you can see that only the top clip is visible in the result
-Add a composite transition between the 2nd and 3rd track with default settings ("over" and 100% opacity). Extend the length of the transition to cover the whole lenght of the clip
-you can see that still only the top clip is visible in the result
-Set the opacity of the lowest transistion to 75%.
-You can see in the result that the top clip appears with an opacity of 75%, the bottom clip with an opacity of 25%, while the middle one is absent.

Additional Information

Please tell me if you want me to add .kdenlive file and screenshots.

Tags

No tags attached.

Build/Install Method

3rd party package

Attached Files

Relationships

Notes
(0008601) camillem (reporter) 2012-11-10 17:54	The behaviour/bug is also in Kdenlive: 0.9.3 (dev version from http://ppa.launchpad.net/sunab/kdenlive-svn/ubuntu [^] precise main

(0009373) camillem (reporter) 2013-03-08 18:51	The new Affine transition provides with the expected behaviour. So this bug could be cloded.

Issue History
Date Modified	Username	Field	Change
2012-11-04 17:28	camillem	New Issue
2012-11-10 17:54	camillem	Note Added: 0008601
2013-03-08 18:51	camillem	Note Added: 0009373