sarahforcier / Pathtracer_MIS

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Path Tracer Episode V: Global Illumination Strikes Back

Sarah Forcier 58131867

Comparison

Images rendered with 900 samples per pixel and a recursion depth of 8

New Full Lighting

Old Full Lighting

Direct Lighting

Naive

Custom scenes

Images rendered with 1600 samples per pixel and a recursion depth of 8

Bubbles

Scene Description: plastic bubble material, three multi colored lights

Spheres on Stairs

Scene Description: mirrored microfaceted spheres, staircase is a mesh modeled in maya with a matte material, two lights

Spheres in the Sky

Scene Description: gold metal and glass spheres in a environment cube, three lights

Extra credit

Oren Nayar (5): rendered with 100 samples, 5 recursion, full lighting

Lambertian

Sigma = 0.3

Sigma = 0.5

Lambertian Transmission (5)

Fresnel Conductor (8)

The gold metal in an above image uses a Fresnel Conductor where k and eta are constants given in PBRT.

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