This section serves as a summary of all thePhysically-Based Renderingconcepts.
Radiometry
Physics
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Photon Energy:energy that moves along a ray, assuming no wave properties. It has positione, directiond, and wave length 位.
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Radiant Energy:the total energy radiated by all the rays from any 位.
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Spectral Energy:the total energy at a specific 位.
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Flux:radiant energy a second.
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Irradiance: arrival flux at unit area (per square meter).
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Radiant Exitance:exitted flux at unit area.
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Radiance:irradiance per solid angle.
Integrators
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Solid Angle
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Irradiance by Integral Over Spheric Surface
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Irradiance by Integral Over Area
Properties
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Lambert's Law
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Radiance's Invariant Property Along A Ray
Probability
Monte Carlo Integration
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To Be Integrated:
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Estimator
p(x) is thesampling distribution function.
Sampling
Rejection Sampling
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Random On Disk
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Random In Unit Sphere
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Random On Unit Sphere
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Random On Unit Hemisphere By XY plane
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Random On Unit Hemisphere By Any Plane
Importance Sampling
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Direct Light
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Ambient Light
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MIS
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Balance Heuristic
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Power Heuristic
BSDF
BRDF
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Phong
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Blinn-Phong
, where
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Diffuse
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Torrance-Sparrow
, and inBeckmann Distribution Model,
- Oren-Nayar
Stochastic Path Tracing
Algorithm
- Russian Roulette
Next Event Estimation
Multiple Importance Sampling
Photon Mapping
Bidirectional Path Tracing
Volumetric Rendering
Procedures
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Absorption
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Emission
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Outscattering
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Inscattering