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Program of Image Rendering via Gradient-domain Raytracing Algorithms

Student: Denis Pavlov

Supervisor: Rimma Akhmetsafina

Faculty: Faculty of Computer Science

Educational Programme: Software Engineering (Bachelor)

Year of Graduation: 2016

The paper is dedicated to image rendering via Gradient-domain ray-tracing algorithms. We introduce the basic concepts and algorithms related to ray-tracing image rendering, touch upon the problem of global illumination and the ways to solve it. Besides, we describe the stochastic ray-tracing algorithms which gradient-domain algorithms are based on. The main purpose of this work is to develop a program that uses gradient-domain ray-tracing algorithms for image rendering. “Gradient-Domain Path Tracing” (2015) is chosen for implementation. This algorithm was introduced by Markus Kettunen and basically is an extension of original “Path Tracing”(1986). It allows to obtain higher quality images with less computational costs. The developed program allows to visualize the scene for preview and modification via OpenGL. For image rendering the program uses OpenMP to parallelize the algorithm on the CPU. The paper contains 44 pages, 3 chapters, 26 illustrations, 3 schemes, 16 bibliography items, 4 appendices. Keywords: image rendering, ray tracing, Path Tracing, Gradient-domain Path Tracing.

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