RubaTwo related questions for computer graphics people:
1. is it true that ray/line/whatever intersection tests are common in interviews?
2. how common are questions of this nature, where you have equations memorized?š¤
(boosts appreciated pls)
Innes McK1. yes, super common
2. they're not really about memorizing equations, more about showing you have a working grasp of 3d maths and basic algebraic operations - if you're comfortable with vectors, dot product, cross product you can likely get to the answer, interviewers are looking to hear your thought process
Aras PranckeviÄius@im @ruba yeah, basically this. In computer graphics you are kinda expected to know what vectors and especially dot products among them are. Since like 90% of all graphics is dot products, if you squint :)
And if you *really* know what dot products are, then various intersection/distance things you can derive (slowly) out of that without having to "memorize" any of them.
@aras @im iiiiiiinteresting! I (of course) see how you need to demonstrate that you have a solid and practical understanding how the dot product, but whenever I see geometric tests presented like this: https://gamemath.com/book/geomtests.html especially as they get more complicated, I just can't retain that much detail :|