Calculating Ray-Sphere Intersections

Twitter: @The_ArtOfCode Facebook:   / theartofcode   Patreon:   / theartofcode   ShaderToy: https://www.shadertoy.com/user/BigWIngs PayPal Donation: https://paypal.me/theartofcode In this video I'll explain how to do a ray sphere intersection. This is very useful in computer graphics for things like ray tracing.