Simple question, how to get normals of a position on spehere?

Hi, I want to put a house on a big spherical planet in script but it looks weird w/o correct rotation. How do you guys get that normals/rotation? Thanks.

 

Been studying a lot of ray casting latley =P

You may be able to do this with ray casts using the hit data output.

If you raycast from the base of your house to the center of the sphere you can track the orientation. Then from the hit point data you can gather the actual hit point location and the direction of the normal face.

Another more hands on option would be to create an empty game object that has an axis alignment with sphere, then you can set up a child parent bind and use the parent to do the rotation and the child can control your height by manipulating it's local values.

 

Aha! Awesome!

 

Why raycast? The normal will just be the point on the surface minus the centre point.

 

Why I forget it!