Javor's Web Page

My very own place on the Internet.

I am part of the rendering team at Wētā FX.

My most recent work is on rendering and imaging topics including Path Tracing, Denoising, and Spectral Uplifting. I also have experience in Symmetry Detection, Inverse Procedural Modeling, Shape Understanding, and 3D Printing.

In the past, I did some teaching on Computer Graphics, Realistic Image Synthesis and Parallel Programming on GPUs.


...and projects I worked on.

Robust Average Networks for Monte Carlo Denoising

Javor Kalojanov and Kimball Thurston
[arXiv] [pdf] [bib]

String-Based Synthesis of Structured Shapes

Javor Kalojanov, Isaak Lim, Niloy Mitra, and Leif Kobbelt
Eurographics 2019
[pdf] [slides] [bib] [supp] [code]

GPU Ray Tracing using Irregular Grids

Arsène Pérard-Gayot, Javor Kalojanov, and Philipp Slusallek
Eurographics 2017
[pdf] [slides] [bib] [code]

r-Symmetry for Triangle Meshes: Detection and Applications

PhD thesis about symmetry analysis, tiling grammar simplification, mesh compression, and inverse procedural modeling.
[pdf] [bib]

Building Construction Sets by Tiling Grammar Simplification

Javor Kalojanov, Michael Wand, and Philipp Slusallek
Eurographics 2016
[pdf] [slides] [supp] [bib]

Efficient r-Symmetry Detection for Triangle Meshes

Javor Kalojanov
Technical Report, Saarland University, 2015
[pdf] [bib]

Microtiles: Extracting Building Blocks from Correspondences

Javor Kalojanov, Martin Bokeloh, Michael Wand, Leonidas Guibas, Hans-Peter Seidel, and Philipp Slusallek
Symposium on Geometry Processing (SGP) 2012
[pdf] [bib] [slides]

Two-Level Grids for Ray Tracing on GPUs

Javor Kalojanov, Markus Billeter, and Philipp Slusallek
Eurographics 2011
[pdf] [bib] [slides] [code]

A Parallel Algorithm for Construction of Uniform Grids

Javor Kalojanov and Philipp Slusallek
High Performance Graphics 2009
[pdf] [bib] [slides]

Animation Demo

This demo can load and display .obj key frame animations with direct illumination (Phong) from a single area light (4 samples per point).

Ogre model courtesy of William "Proton" Vaughan.

Path Tracing Demo

This demo can load and display static .obj scene with a path tracer. It handles Phong BRDF for diffuse and glossy surfaces, and translucent surfaces that do not intersect each other (has Beer's law).

Parallel and Lazy Construction of Grids for Ray Tracing on Graphics Hardware

Master thesis. Includes several grid construction algorithms for uniform and two-level grids implemented in CUDA.