[image] I want to limit this point to dragging and dropping on the surface of an object, is there a good way

One simple solution is to use raycasting. Meaning you cast a ray based on the position of your red point and a direction vector that points towards the blue surface. You can then allow a transformation of your point as long as the ray intersects the surface. If no intersection is detected, the point…

oh,that sound great,thanks boss

How to drag an object on the surface

Questions

prisoner849 April 19, 2022, 11:04am 3

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How to drag an object on the surface

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