Transitions don't work as expected

[eugenialoli]

I'm using the latest dev-build (1 oct 2024) on Linux Mint 22, and the transitions don't work properly. I place a transition on top of two clips, and the transition starts, but as it progresses it becomes totally black, and then it switches immediately to the next clip. The transition is not smooth as expected, it goes totally black towards the end.

[Colorjet3]

Hello @eugenialoli

1. Are your clips image files or video files?
2. I am assuming that the 2 clips are snapped together?
3. When you place the transition on top of the two clips is half the transition covering the 2nd half of the first clip and the 1st half of the 2nd clip? A screen shot would be great.

I am asking so I can try and reproduce your steps to test.

[eugenialoli]

1. Two h.264 files
2. Yes
3. Yep, half and half on top of the two videos.

[Colorjet3]

Hello @eugenialoli Thank you for the information. I am still doing some testing but finding some interesting information on how transistions are supposed to work (the way the lead developer programmed it) vs. how I thought they should/would work.

Please go to https://www.openshot.org/user-guide/ and search on "Transistions" excluding the quotes. Read it very carefully. There is a lot of detailed information about how they should be applied and used. It even mentions times where you should not use Transistions and instead to use Transparency attribute of a clip to achieve what you need.

If you can explain to me what you want to accomplish, in detail (not what you expect to happen), I can work with you to achieve your goal.

[eugenialoli]

I read the guide, and it doesn't say anything about my problem. I have two same-sized images or videos in the timeline that I want to use a transition. I expect the transition to simply use the effect, and beautifully transition from one image or video to the other. Instead, I get the effect on the first clip, and then it blacks out on the second. This is not about how "I" expect the transitions to work, it's how they work in every editor, ever. On Openshot, they don't work properly, they're just weird. They black out by default.

[Colorjet3]

I have assigned this to the lead developer for his review. I am just a volunteer trying to help. I am guessing you want the first clip to fade out with the transition you applied and fade in the 2nd clip with the same transition.

If this is the case then you would:

1. Drag your files onto a track snapped together.
2. Drag a transition onto the first clip. now select the transition then adjust the left edge so it covers the 2nd half of the first clip.
3. Now drag the same transition onto the 2nd clip. Select the transition and adjust the right edge so it only cover the first half of the 2nd clip.
4. This should give you a Fade Out effect of whatever transition you used for the first clip and a Fade In effect of the same transistion for the 2nd clip.