Photon Differential Splatting for Rendering Caustics
نویسندگان
چکیده
منابع مشابه
Photon Differential Splatting for Rendering Caustics
We present a photon splatting technique which reduces noise and blur in the rendering of caustics. Blurring of illumination edges is an inherent problem in photon splatting, as each photon is unaware of its neighbors when being splatted. This means that the splat size is usually based on heuristics rather than knowledge of the local flux density. We use photon differentials to determine the siz...
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A number of techniques exist for approximating the rendering equation in order to create realistic detailed images. Photon mapping is a method that allows for the accurate rendering of a wide range of reflective and refractive phenomena. We explore the basis of the photon mapping technique with the goal of constructing a system for rendering such effects, particularly in regard to caustics. Our...
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This document provides a historical overview of the development in computer graphics that led to photon differential splatting. We highlight how photon differential splatting differs from this early related work. 1. Early Related Work It seems that a two-pass method for rendering caustics, where a tracing from the light sources is added to a tracing from the eye, was first suggested by Heckbert...
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In recent years, much work was devoted to the design of light editing methods such as relighting and light path editing. So far, little work addressed the target-based manipulation and animation of caustics, for instance to a differently-shaped caustic, text or an image. The aim of this work is the animation of caustics by blending towards a given target irradiance distribution. This enables an...
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ژورنال
عنوان ژورنال: Computer Graphics Forum
سال: 2014
ISSN: 0167-7055
DOI: 10.1111/cgf.12347