Natural caustics in backward path tracing
In this paper we introduce a natural method for producing both refraction and reflection caustics in backward path tracing (e.g. bouncing around an eye ray in the scene until a light is found).
These caustics do not rely on a light location, and as such, do not rely on bidirectional or forward path tracing.
As such, these caustics allow for as many light sources as one would care for; the shapes and positions of the lights are completely arbitrary (can be bunny shaped, etc).
We use the standard Cornell box for testing the backward path tracer.
Email Address of Submitting Authorsjhalayka@gmail.com
ORCID of Submitting Author0000-0001-5874-0050
Submitting Author's InstitutionNone
Submitting Author's Country