progressive photon mapping

Progressive Photon MappingT. Hachisuka, S. Ogaki, H.W. Jensen

Monte Carlo

Photon Mapping

Progressive Photon Mapping

Results

Monte Carlo Techniques

Path Tracing

Light Tracing

Bidirectional Path Tracing

Metropolis Light Transport

Caustics

Caustics: SD Paths

Caustics: SD Paths

Solution: Light Tracing

Problem: SDS Paths

Problem: SDS Paths

Lights in Glass

Water

Swimming Pool

Monte Carlo

Photon Mapping

Progressive Photon Mapping

Results

SDS Paths

Photon Mapping

Solution: Photon Mapping

Solution: Photon Mapping

Photon Density Estimate

»

Weakness

Quality is Memory Limited

Monte Carlo

Photon Mapping

Progressive Photon Mapping

Results

Photon Mapping

Photon Tracing

Ray Tracing

Reverse Photon Shooting

Ray Tracing

Photon Tracing

Reverse Photon Shooting

Reverse Photon Shooting

Progressive Photon Mapping

Ray Tracing

Photon Tracing

Multipass Density Estimate

Multipass Density Estimate

Multipass Density Estimate

Radius Reduction

Assume homogeneous density

Radius Reduction

»

Flux Correction

»

Overview

Raytracing first

Multiple photon tracing passes

Radius reduction

Flux correction

Monte Carlo

Photon Mapping

Progressive Photon Mapping

Results

Results

PT BDPT

Progressive

Photon

Mapping