Virtools Physics Pack介绍

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发表于 2011-10-17 16:56:00 |只看该作者 |倒序浏览

            Virtools Physics Pack for Dev整合了Havok公司顶尖的物理属性引擎，使得Virtools的使用者在制作3D互动场景的过程中更形便利。Virtools Physics Pack 包含了29个新的行为模块(Building locks，简称BB)，提供使用者多种物理属性的运用，诸如重力、质量、摩擦力、弹力、物体间的物理限制、浮力、力场与车辆的动态物理属性等功能。这些功能大大缩短使用者制作的时程，减少美术设计师繁复冗长的物体动态制作过程与程序设计师撰写算法的实作。


         　　Virtools Physics Pack提供开发者高阶行为模块来处理复杂的物理仿真模型。使用Virtools Physics Pack，开发者可轻易表现线上互动的全新境界，场景中的对象将不用透过下载全部的行为模块即可以栩栩如生的表现，所有类型刚体的摩擦力与重力作用也都可以自动立即检视。


         　　在互动应用上加入物理属性的步骤，就如同在物体中加入其它行为模块般容易，只需要简单的拖-拉-放，没有程序语言基础的设计师也能轻易使用。这项最先进的组件，可顺利的被整合于Virtools架构中，提供开发者一个单一的使用者接口来整合多样化的技术。


         　　相关链接：


         http://www.vrlogic.com/html/virtools/physics

         _

         pack.html





         物理特性演示demo


         原文信息：


         The Virtools™ Physics Pack for Dev is an add-on library for Dev developers who want to inject lifelike physics into their applications.





         Overview


         Consisting of 29 new building blocks, the Virtools Physics Pack provides access to features like gravity, mass, friction, elasticity, physical constraints between objects, and advanced physics models like buoyancy, force fields and car behaviors. These features speed up development, replacing tedious animation work and algorithm implementation by artists and programmers while remaining compatible with existing Virtools Dev non-physics behaviors.


         Realistic Physics for interactive 3D Worlds


         The Virtools Physics Pack lets you create interactive 3D worlds with realistic physics. Use the power of Havok's technology to apply the laws of physics to your 3D objects. These objects can be convex, concave or ball primitives, and each can have their own mass, friction and elasticity. The topology used for such objects can be different from the version actually rendered onscreen, letting developers make adjustments with a more economical physics model thus reducing processing time for calculating physics behaviors. All physics simulation parameters can be modified at***n-time, including gravity, physical time for the overall scene, objects to be added or removed from the physics world, and more…


         Features


         These features enable dynamic streaming of content that adapts to user interaction. Connections with the Virtools Behavioral Server bring hassle-free personalization to the web. That means you can make your business logic first and foremost in the end user experience.


         Rigid Body Collision Detection and Constraints


         The Virtools Physics Pack not only offers lifelike physics interactions, but also provides superior collision management, surpassing for ease of use the standard Virtools collision detection behaviors. Information from the physics simulation is made available as behavior outputs, which can be used by developers to trigger other scripts in the application.


         With physics constraints like springs, hinges, point-to-plane and ball joints, developers can create articulated bodies that come to life with animations guided by the physics simulation. This process optimizes production time and budget, since 3D artists no longer have to prepare complex animations in advance to account for all potential movements and interactions.


         Ultimately, with the Virtools Physics Pack, developers have the means to make solid decisions on the best solutions for problems, such as physics versus key-frame animation, encountered throughout production. They can even mix solutions, for example using pre-animated objects with special effects driven by Physics Pack behaviors. The result is simple: reduced development time and budget.


         Ready-to-Use Behaviors for Non-Programmers


         All physics simulation features are used in the intuitive Virtools graphical user interface, as a bundled set of behavior building blocks.


         In addition to basic features like definition and modification of objects' physics properties, and creating or destroying constraints, the Physics Pack gives developers access to high-level behaviors to manage complex physics simulation models.


         Key Features


         Realistic physics with 29 documented behavior building blocks.


         Demo samples showing gravity, friction, collision detection, constraints, and more.


         User guide for efficient implementation.





         Technical Requirements


         Virtools™ Dev.


         Pentium 200 or faster PC (Pentium II recommended).


         Windows NT 4.0 (with Service Pack 6) or Windows 95/98/98SE/2000/ME/XP.


         64 MB of RAM (128 MB recommended).


         Direct3D or OpenGL compatible 2D/3D accelerator card with 8 MB of RAM.


         Sound Card (not required but recommended).


         Internet Explorer 4.0+.