Tag Archives: smooth shading

Path tracer: thin lens, texture mapping, Fresnel equations, and smooth shading

1800 samples. A render illustrating Fresnel reflection and texture mapping.

A few new features have been added to our path tracer. The depth of field extension has been reworked slightly using the thin lens equation allowing us to specify a focal length and aperture. Fresnel equations have been added to more accurately model the behavior of light at the interface between media of different refractive …