Get random vector3 on plane?

Question

There are the planet and a few satellites in 3d space. I need to calculate axis of rotation for every satellite. They should rotate around planet center. I calculated the vector from satellite to the center of the planet. vec1 = planetCenter - sputnikCenter; With vec1 and planetCenter I can calculate the equation of plane, that perpendicular to vec1. equation like that: A.x + B.y + C.z + D = 0 Now, I should get random vector on this plane. This vector will be axis of rotation. But how can I get this random vector?

Answer 1

.NET offers a Random class in their System library. To use this class add a using statement at the top of your file: using System.Random; then create a new Random instance: var rand = new Random(). Then to generate a random number call the Next() method, which returns a non-negative random integer. Please reach out if you have further questions!