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Interactive Cutting in Voxel-Based Objects. Application to Simulate Transurethral Resection of the Prostate
(The Eurographics Association, 2006)
Simulating cutting processes of human tissue is an important feature in virtual reality systems for medical training and rehearsal. In this paper we present a method to simulate the cutting operation in voxel-based virtual ...
Expeditious Modelling of Virtual Urban Environments with Geospatial L-systems
(The Eurographics Association, 2006)
This paper presents Geospatial L-systems, a new extension of L-systems that incorporates geospatial awareness, and shows an application of this new tool in the expeditious modelling of urban environments, integrated with ...
Data-driven Tetrahedral Mesh Subdivision
(The Eurographics Association, 2006)
Given a tetrahedral mesh immersed in a voxel model, we present a method to refine the mesh to reduce the discrepancy between interpolated values based on either scheme at arbitrary locations. An advantage of the method ...
Perception-based Lighting Design
(The Eurographics Association, 2006)
Perception-based lighting design approaches model image quality using a cognitively grounded objective function which is in turn optimised through manipulation of the lighting parameters of a scene. We present, and ...
Polynomial Approximation of Blinn-Phong Model
(The Eurographics Association, 2006)
The Phong model has been one of the oldest and the most popular reflection models in Computer Graphics. It can be used to model specular highlights of various materials. In this paper, we consider a polynomial model and ...
Out of core Polyhedral Union and its Application to Interactive Shadow Rendering
(The Eurographics Association, 2006)
Four methods for storing a set of points using a computer are currently known: Boundary representations, Constructive Solid Geometry, Binary Space Partitioning trees, and Nef polyhedra. We describe a time and spaceefficient ...
Expressive and Dynamic Deformation of Animated Computer-Generated Characters
(The Eurographics Association, 2006)
3D computer animated characters often lack the communicative power and the expressiveness of traditional animation, especially when used in non-photorealistic graphical representations. Inspired by a talk by Pixar Animation ...
Collision Detection for Deformable Objects using Octrees
(The Eurographics Association, 2006)
We present an algorithm for collision detection between multiple deformable objects translating in a large environment. We use Spatial Partitioning to subdivide the scene and a Bounding Volume Hierarchy to decompose the ...
State of the Art Non-Photorealistic Rendering (NPR) Techniques
(The Eurographics Association, 2006)
The emergence of non-photorealistic rendering (NPR) over the greater part of a decade has created an intriguing new field espousing expression, abstraction and stylisation in preference to the traditional computer graphics ...
Perceived Rendering Thresholds for High-Fidelity Graphics on Small Screen Devices
(The Eurographics Association, 2006)
Small screen devices, also known as small-form-factor (SFF) devices including mobile phones and ultra mobile PCs are increasingly ubiquitous. Their uses includes gaming, navigation and interactive visualisation. SFF devices ...