Question: how to use 360 panoramic image for the Sky Sphere texture

There is no easy way of doing it properly, but there is an easy hack way. Model up a UV sphere in Blender, smooth the faces then invert the normals. Apply your 360 panorama as an image texture and you have yourself a custom skysphere.

https://answers.unrealengine.com/que…mic-image.html

Edit: you may have to mirror the panorama horizontally because it’s being mapped to the interior of the sphere.