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Global Illumination

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Global Illumination. Collected Images D. House 11/24/09. Radiosity. The Cornell Box. Where: B i is the radiosity of patch I , E i is emitted energy, R i is the reflectivity of the patch. - PowerPoint PPT Presentation

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Global Illumination

Global IlluminationCollected ImagesD. House11/24/09RadiosityThe Cornell Box

Where: Bi is the radiosity of patch I, Ei is emitted energy, Ri is the reflectivity of the patch.All j (j != i) in the rendered environment are integrated for BjFjidAj, to determine the energy leaving each patch j that arrives at patch i.Fij is the constant-valued view factor for the radiation leaving i and hitting patch j.The reciprocity:For ease of use the integral is replaced and uniform radiosity is assumed over the patch:

Radiosity for Architectural Rendering

Photon Mapping

Cornell Box with refractions and reflections

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