We have a client who has supplied us some 360° videos in the equirectangular format for an installation. We would like to sample 2D quads from it to project onto different surfaces around a room. Ideally we would be able to select a portion of the source just like a 2D quad so that we can edge-blend across multiple projectors.
I have tried using the Video Scroll FX but this only works when it moves horizontally - moving vertically the join between top and bottom doesn't match up. It also doesn't project the image to a sphere so the distortions around the edges are still present.
Using the 3D layer with spherical texturing showed some promise but still has fisheye-like distortion around the edges.
Does Madmapper have any built-in support for sampling from a 360° video? Or are there any custom-built FX to handle them?
In my head I think we need to map the image to an imaginary sphere, then put a 'camera' at the centre and specify view direction and field of view. I know a small amount of GLSL so will investigate further, but if there are any existing tools that can achieve all or part of this then that would be a great help please!