Wavelet Applications for Rendering Speaker: Yung Chum Lu.

Slides:

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Presentation transcript:

Wavelet Applications for Rendering Speaker: Yung Chum Lu

Outline Introduction of Rendering Application I Application II Review Haar Something Interesting

Rendering

Story Board

Create a 2D picture of a 3D world

Ray Tracing

Direct Illumination

point light Path Tracing point light

Direct Illumination

Path Tracing

Pixar

Why Ray Tracing

Tron

Review of 1-D Haar Mother Basis General Basis Scaled Basis

Property

Property

Property

Application I Triple Product Wavelet Integrals for All-Frequency Relighting Ren Ng Stanford University Ravi Ramamoorthi Columbia University Pat Hanrahan Stanford University

Triple Core Problem

Double Product Integral

Triple Product Integral

2-D Haar

Triple Product Integral in 2-D Haar

Preliminaries

All three basis are wavelet

Some are scaling function

Application II Wavelet Importance Sampling: Efficiently Evaluating Products of Complex Functions Petrik Clarberg Lund University / UC San Diego Wojciech Jarosz UC San Diego Tomas Akenine-M¨oller Lund University Henrik Wann Jensen UC San Diego

The Core Problem

Warping

Generalized Wavelet Product

Light Field Camera Ren Ng