Přednáška Fotorealistická syntéza obrazu (10.-17. 12. 2008)

Prezentace k přednášce (>100 stran v češtině)

Local reflectance models

Metal teapot	Diffuse teapot	Glass teapot	Glossy teapot

Metal surfaces rendered using different light models:

Gold, Phong	Gold, Hall	Gold, Cook-Torrance	Copper, Cook-Torrance

Sample materials from Cornell BRDF database:

Automotive paint	Spray paint	House paint
Ceramics	Human skin

Ray-tracing

Images generated by PoV ray tracer:

Manhattan	The Lovers	Pearl Harbor	Warm Up
Marbles	Office	Kitchen	The Classroom

Radiosity

Flat shading	Gouraud	Gouraud, Yellow light

Combined heuristics

Light source sampling	BRDF sampling	Combined sampling

Global illumination

Architecture:

Photon mapping	Photon mapping Sun is the only light source

Caustics:

Photon mapping	Photon mapping

All images have been rendered at 1024x768 with 4 samples per pixel on a Dual P3 800MHz Linux-PC.

Ray tracing 1.5 sec	+ soft shadows 7 sec	+ caustics 12 sec (2+10)	+ global illumination 15 sec (3+12) caustics photons 50k global photons 200k	Path tracing reference

Combined heuristics (Bidirectional Path-tracing)

Path-tracing	Combined heuristics

Individual components (light paths):

Cornell box

Spectral Monte-Carlo Ray-tracing	Photon mapping	+ glass sphere	Transcluent box
Fractal walls 1.6mil. elements caustics: 50k photons global: 200k photons 14min (2xPII/400)	Fractal wall & spheres 8min (2xPIII/800)	Diffuse box 4 samples/pixel 9min (Pentium/100)	Glossy box 16 samples/pixel 50min (Pentium/100)	Glossy box reference 1000 samples/pixel

Metropolis Light Transport

Caustics details:

Bidirectional Path-Tracing	Metropolis Light Transport

Copyright: text, slides (C) 2006-2008 J.Pelikán
Copyright: images (C) Henrik Wann Jensen, James Arvo, Eric Veach, Leonidas Guibas et al.
last change: $Date: 2013-11-22 23:48:14 +0100 (Fri, 22 Nov 2013) $
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