How Can I Find Equations for 3D Elastic Collisions of Spheres?

AI Thread Summary
To find equations for 3D elastic collisions of spheres, it is essential to adapt standard 1D elastic collision equations into 3D vector equations. Resources like Chri Hecker's tutorial on 3D collisions in physics-based games can provide valuable insights, even if the theory is less straightforward. The discussion emphasizes that while spheres simplify the problem, understanding the principles of rigid body mechanics is still necessary, especially if rotation is involved. The focus remains on planar collisions defined by the vectors of motion. Overall, adapting existing equations and seeking targeted tutorials can aid in programming accurate simulations of 3D elastic collisions.
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I am try to write a program with 3D spheres of different masses, radius, velocities and angles. Then use three dimensional elastic collision equations to find the spheres new velocities and angles. The problem is that i can't find any information or equations on 3D elastic collisions, only 1D ones.
Can someone please point me to where i can find this information.
 
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3D spheres are planar collisiosn...other 3D objects you will need to learn some analytic mechanics on rigid bodies. Chri Hecker as a good tutorial on 3D collisiosn in physics-based games that runs through the same theory...a little less clean(theory wise) but does what it does.
 
i don't think there should be any special rigid-body problems, since you're dealing with spheres...all you have to do is to change the standard 1-D ellastic collision equations into 3-D vector equations, i guess..
 
yeah its planar lying on the 2 vectors of motion unless of course your spherse are rotating which I've never dealt with(but happens in billiards though they are confined still to a 2D plane)
 
Thanks guys.
 
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