Simple0x47 289 Posted March 25 You should have three positions ( one of them is the reference ) in order to obtain an angle. Share this post Link to post

AncienT 10 Posted March 25 (edited) 38 minutes ago, Simple0x47 said: You should have three positions ( one of them is the reference ) in order to obtain an angle. i made this: --FORMULA: cos(0)=a*b/|a||b| local x1,y1,z1 = 4,-3,5 local x2,y2,z2 = 9,7,-10 local r1 = (x1*x2)+(-3*7)+(5*-10) local a1 = x1^2+(-y1)^2+(z1)^2 local a2 = x2^2+(-y2)^2+(z2)^2 local r2 = math.sqrt(a1)-math.sqrt(a2) local angle = r1/r2 print(angle) I just do not know if it's the correct formula Edited March 25 by AncienT Share this post Link to post

Simple0x47 289 Posted March 25 For what do you need the angle? Because you cannot get the angle of 3D points. Share this post Link to post

Investor 41 Posted March 26 If you're looking for the Z rotation (bearing, yaw) between two points: findRotation. If you need the local Y (pitch) it can be computed in a similar way to findRotation. The local X (roll) rotation is not defined, so to speak, when looking towards another 3D position (i.e. it can be anything) unless you introduce some additional reference point perhaps. Share this post Link to post