I have a sphere which is in constant rotation (same axis, same speed) like a planet. My camera is a RTS camera (free). When I click on my sphere, my camera is grab, locked on it. When I pan, I can do the whole tour of it at same distance to the sphere.
But, my problem is, I would like my camera to follow the same rotation (speed and direction) that my sphere, like a geostationary satellite around a planet.
Actually, I can do this (incomplete) workaround with this script, but only if the camera is aligned with the sphere axis…
Where CameraRotationSpeed float variable is the sphere rotation speed.
My camera is composed of a scene, a sphere (used for pan), a spring arm (used for zoom) and a camera.
Create a camera blueprint for each Planet. Attach it as a child actor component.(Solves axis and rotational alignment issues.)
When a planet is selected:
Make sure camera is not on other side of world, if so add 180 degrees to get it within view:
Get Forward Vector(self) → dot ← Get Forward Vector( Planetary Camera child actor → Camera Component)
if <0 add local rotation to sphere
set view target with blend to the child actor. Enable input on child actor to control panning.
Upon leaving a planet:
Move Celestial camera above planetary camera(to prevent the blend from going through the planet):
Get Local Location of Camera → Multiply by 2 → Add planet world location → Set Celestial world location
Blend back while disabling planetary camera input.
