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  1. Proceedings of the South African Institute of Computer Scientists and Information Technologists Conference on Knowledge, Innovation and Leadership in a Diverse, Multidisciplinary Environment (SAICSIT '11)
  2. A system for real-time deformable terrain
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The influence of gender and age on choosing computing courses at South African universities
Towards the formalisation of object-oriented methodologies
Browser-based software for technology transfer
Using information visualization to support web service discovery
A phonetic approach to handling spelling variations in medieval documents
Contextual factors influencing strategic information systems plan implementation
Investigation into BATMANd-0.3.2 Protocol performance in an indoor mesh potato testbed
Does Chomsky complexity affect genetic programming computational requirements?
Detecting non-stereoscopic to stereoscopic image splicing with the use of disparity maps
Using N-grams to identify mathematical topics in MXit lingo
Using mass video notification methods to assist deaf people
The accreditation of ICT degree programs in South Africa
Empowerment of rural farmers through information sharing using inexpensive technologies
ICT career track awareness amongst ICT graduates
Enhancing identification mechanisms in UML class diagrams with meaningful keys
Day labour mobile electronic data capture and browsing system
Activity analysis of a knowledge management system: adoption and usage case study
A system for real-time deformable terrain
A grounded theory research investigation into the importance of social relationships and networks within corporate information systems projects
Evaluating software specifications by comparison
The dualism of the information technology project
Barrel menu: a new mobile phone menu for feature rich devices
An evaluation of a low-cost 3-dimensional gestural interface: Wii3D
Business process management adoption: a case study of a South African supermarket retailer
Empirical comparison of four classifier fusion strategies for positive-versus-negative ensembles
Towards a framework for the adoption of business intelligence in public sector organisations: the case of South Africa
Design principles for contactile computing
The conversion from PowerPoint (PPT) to compressed Scalable Vector Graphics (SVGZ)
Domain specific languages contextualized
Rough subsumption reasoning with rOWL
Understanding culturally distant end-users through intermediary-derived personas
Investigating the extent to which students share tacit knowledge using mobile phones in group projects
Mobile phones and digital divide in East African countries
A sketch-based articulated figure animation tool
Engineering RESTful semantic services on the fly
Indexing and weighting of multilingual and mixed documents
Proposed stages of a rural ICT comprehensive evaluation framework in ICT for rural development projects
Efficiency measurements in IVR systems for oral users: consequences of differences in educational levels
Adoption of Green IS in South Africa: an exploratory study
Static typing with value space-based subtyping
The RHINO platform: charging towards innovation and skills development in software defined radio
The effect of construction heuristics on the performance of a genetic algorithm for the school timetabling problem
Successful ICT service delivery: enablers, inhibitors and hygiene factors: a service provider perspective
The influence of gender and internet experience on the acceptability of smell as interaction modality
Providing media download services in African taxis
A domain-specific language for URDAD based requirements elicitation
Issues of adoption: have e-learning management systems fulfilled their potential in developing countries?
Evaluating web conferencing tool effectiveness
The impact of sensor fusion on tilt interaction in a mobile map-based application

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A system for real-time deformable terrain

Content Provider ACM Digital Library
Author Crause, Justin Flower, Andrew Marais, Patrick
Abstract Terrain constitutes an important part of many virtual environments. In computer games or simulations it is often useful to allow the user to modify the terrain since this can help to foster immersion. Unfortunately, real-time deformation schemes can be expensive and most game engines simply substitute proxy geometry or use texturing to create the illusion of deformation. We present a new terrain deformation framework which is able to produce persistent, real-time deformation by utilising the capabilities of current generation GPUs. Our method utilises texture storage, a terrain level-of-detail scheme and a tile-based terrain representation to achieve high frame rates. To accommodate a range of hardware, we provide deformation schemes for hardware with and without geometry tessellation units. Deformation using the fragment shader (no tessellation) is significantly faster than the geometry shader (tessellation) approach, although this does come at the cost of some high resolution detail. Our tests show that both deformation schemes consume a comparatively small proportion of the GPU per frame budget and can thus be integrated into more complex virtual environments.
Starting Page 77
Ending Page 86
Page Count 10
File Format PDF
ISBN 9781450308786
DOI 10.1145/2072221.2072231
Language English
Publisher Association for Computing Machinery (ACM)
Publisher Date 2011-10-03
Publisher Place New York
Access Restriction Subscribed
Subject Keyword Terrain deformation Caching Opengl Parallax mapping Geometry tessellation
Content Type Text
Resource Type Article
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