英文原文

Extending Blender: Development of a Hepatic Authoring Tool

Abstract -In this paper, we present our work to extend a well known 3D graphic

modeler -Blender -to support hepatic modeling and rendering. The extension tool is

named HAMLAT (hepatic Application Markup Language Authoring Tool). We

describe the modifications and additions to the Blender source code which have been

used to create HAMLAT Furthermore, we present and discuss the design decisions

used when developing HAMLAT, and also an implementation "road map" which

describes the changes to the Blender source code. Finally, we conclude with

discussion of our future development and research avenues.

Keywords Hepatics HAML Graphic Modelers Blender Virtual Environments.

I. Introduction

A. Motivation

The increasing adoption of hepatic modality in human-computer interaction

paradigms has led to a huge demand for new tools that help novice users to author and

edit hepatic applications. Currently, the hepatic application development process is a

time consuming experience that requires programming expertise. The complexity of

hepatic applications development rises from the fact that the hepatic application

components (such as the hepatic API, the device, the hepatic rendering algorithms,

etc.) need to interact with the graphic components in order to achieve synchronicity.

Additionally, there is a lack of application portability as the application is tightly

coupled to a specific device that necessitates the use of its corresponding API.

Therefore, device and API heterogeneity lead to the fragmentation and disorientation

of both researchers and developers. In view of all these considerations, there is a clear

need for an authoring tool that can build hepatic applications while hiding

programming details from the application modeler (such as API, device, or virtual

model).

This paper describes the technical development of the hepatic Application

Markup Language Authoring Tool (HAMLAT). It is intended to explain the design

decisions used for developing HAMLAT and also provides an implementation "road

map", describing the source code of the project.

B. Blender

HAMLAT is based on the blender [1] software suite, which is an open-source 3D

modeling package with a rich feature set. It has a sophisticated user interface which is

noted for its efficiency and flexibility, as well as its supports for multiple file formats,

physics engine, modem computer graphic rendering and many other features.

Because of blender's open architecture and supportive community base, it was

selected as the platform of choice for development of HAMLAT. The open-source

nature of Blender means HAMLAT can easily leverage its existing functionality and

focus on integrating hepatic features which make it a complete hap to-visual modeling

tool, since developing a 3D modeling platform from scratch requires considerable

development time and expertise in order to reach the level of functionality of blender.

Also, we can take advantage of future improvements to blender by merging changes