You got my clickbait? I got your attention. Nothing on the internet mentions that Cinelerra is capable of editing 360 video's, but it certainly is: with the help of ffmpeg's F_v360 plugin. Either creating the 360 content, or extracting it in a regular video. So as you all already expected from my I was doing stuff with Cinelerra-gg that likely nobody did before and noticed some particularities that I really did not understand. My steps: 1. My project settings remain 1920x1080. 2. Just grab any equirectangular video bigger than your project size. The one I got my hands on was 4096x2048. In my project I want to use a part of this video as illustration of the user experience. This would mean I need to project the equirectangular projection into a flat projection. 3. For the plugin settings that would be input=0 and output=4. What I noticed when I modulated the yaw was that I would never see the entire view, then when rotating the back of the video would 'clip' at -180 degrees. 4. When changing the camera to Z = 0.469 (1920/4096) I was able to get a 360 degree rotatable camera. 5. Setting up d_fov = 120, the image would be closely mimicking the experience. Now what Cinelerra bring you from this point. Keyframing a property of the plugin, and there it becomes interesting. Plugin keyframes seem to give the control what we are looking for here. I can set the yaw using "Generate keyframes while tweeking", but what I would be actually looking for is the same set of curves that would be available when changing x,y,z,opacity etc. How would I get interpolation working? Could anyone elaborate how Cinelerra knows it can interpolate some of the parameters, but not others? And personally I think what is more fundamentally lacking in Cinelerra: a timeline view analogue to Blender where any property can be placed in view: where I would suggest to normalise the min and max to sensible properties opposed to the current: stack everything on the track and break your project by an unintended mouse click. -- Stefan