Quick tip. If you dont want to render every single frame of video you can set it up to skip frames. In the “Output” menu scroll down to “frame range” and use the “step” slider to set how many frames you want to skip. My video was 30fps and i just needed an image taken after every 1 second of footage 1 sec = 30 frames so if you set step to 30 you will render a 1fps image sequence. I think you got around this by speeding up the footage but you can do it all in blender if you’d like.
The .Blend file is liked in the description. it has the 26 cameras set up. I would recommend opening the project, In blender 3.0 or higher. do Save As to make a copy, then import your unwrapped 360 footage into the project, then follow along with the rest of the video’s instructions.
Thats what im showing here, Im using the Multiview render funtion of Blender, can be used to render Left and Right eyes for stereoscopic images, But can also be setup for any number of cameras