Light Transport - Light Transport Equation Equations that...

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1 Light Transport Equation ± Equations that describe steady-state of distribution of light in any scene Light Transport Equation ± Given: ± light sources ± geometry of surfaces ± reflectance characteristics of surfaces ± What is the value of radiance at all points and along all directions ? The BRDF () n , , , , o o i p dE p dL p f i ω = i o Outgoing Radiance ( ) ( ) ( ) n , , , , o i o p dE p f p dL i = i o o Outgoing Radiance Ω = i i dE f o i , () () = o o dL L Ω = i o o dL L i Irradiance and Radiance relation ± Irradiance ( E ) – Incoming flux density dA d dE i i Φ = i i i dA d d L θ cos Φ = ± Radiance ( L ) – Incoming flux per unit solid angle per unit projected area i i i d dE cos =
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2 o ω Outgoing Radiance () ( ) () Ω = i d L f L i i i o i o cos , θ i o Outgoing Radiance () () ( ) Ω + = i d L f L L e i i i o i o o cos , i Light Transport Equation
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This note was uploaded on 08/22/2010 for the course CAP 6701 taught by Professor Staff during the Spring '10 term at University of Central Florida.

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Light Transport - Light Transport Equation Equations that...

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