Glossy Direct-to-Indirect Transfer for Relighting
Date Issued
2007
Date
2007
Author(s)
Yang, Shan-Yung
DOI
en-US
Abstract
In computer cinematography and animation, the process of lighting design is time consuming and labor intensive. Lighting artists need an interactive tool which gives fast preview without losing too much quality compared with the final result.
In this thesis, we present a relighting system which solves the problem faced by lighting artists. By caching shading parameters in deep framebuffer and rendering with graphics hardware acceleration, our system gives convincible lighting preview interactively. Our system also captures specular reflections by layered deep framebuffer.
Global illumination for relighting system is also emphasized in this thesis. We proposed a new approach based on transferring indirect illumination from gather samples. Our main contribution is extending the light transport path to glossy inter-reflections by BRDF factorization.
Subjects
燈光設計
繪圖硬體
著色快取
直接—間接轉移
全域照明
Lighting Design
GPU
Deep Framebuffer
Direct-to-Indirect Transfer
Global Illumination
BRDF Factorization
Type
thesis
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