For a ray tracer project, I've been researching algorithms dealing with finding the intersection between rays and triangles (defined by three vertices). What I've found so far is that the Möller-Trumbore (MT) algorithm is used universally.
So my questions are 1) Are there any alternatives to MT or is the algorithm deemed to be the fastest way to calculate intersections? 2) If yes, is MT proven to be optimal or could someone conceivably invent an even faster algorithm?
Edit: I see now that my question is very similar to Ray-triangle intersection
There is a paper from 2016 where the authors claim
Running under ideal experimental conditions, our algorithm is always faster than the standard Möller and Trumbore algorithm, and faster than a highly tuned modern version of it except at very high ray-triangle hit rates.
Source: Doug Baldwin and Michael Weber, Fast Ray-Triangle Intersections by Coordinate Transformation, Journal of Computer Graphics Techniques (JCGT), vol. 5, no. 3, 39-49, 2016
Available online http://jcgt.org/published/0005/03/03/