Roland Schregle

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In this paper we present a physical validation of global illumination algorithms based on measurements from a simple experimental setup. The validation methodology emphasises tractability and error minimisation. To this end, we discuss issues such as the acquisition and accurate simulation of material BRDFs and the light source distribution , as well as(More)
Physically based image synthesis remains one of the most demanding tasks in the computer graphics field, whose applications have evolved along with the techniques in recent years, particularly with the decline in cost of powerful computing hardware. Physically based rendering is essentially a niche since it goes beyond the photore-alistic look required by(More)
Daylight redirecting components (DRCs) are characterised by complex transmissive and reflective behaviour that is difficult to predict accurately largely due to their highly directional scattering, and the caustics this produces. This paper examines the application of progressive photon mapping as a state of the art forward raytracing technique to(More)
The presentation of a recent addition to the suite of popular global illumination rendering methods is the focus of this thesis. The photon map comprises a particle transport simulation with a density estimate characterized by independency of the scene geometry and the ability to efficiently model diffuse global illumination and caustics. Its embedding in(More)
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