منابع مشابه
The Umbra Simulation Framework
Umbra is a new Sandia-developed modeling and simulation framework. The Umbra framework allows users to quickly build models and simulations for intelligent system development, analysis, experimentation, and control and supports tradeoff analyses of complex robotic systems, device, and component concepts. Umbra links together heterogeneous collections of modeling tools. The models in Umbra inclu...
متن کاملLight Source Object Layered Penumbra Umbra
Shadows serve as e ective cues for a user to recognize spatial relations among objects in 3D space. However simple shadows typically used in 3D interfaces are often insu cient for the purpose, and rendering of shadows with real penumbra are not only too costly for interactive interfaces, but also do not enhance their capabilities as spatial cues. Our proposal, layered penumbra is a new interact...
متن کاملGenerating Shadows with an Umbra and Penumbra
An algorithm for generating shadows with an umbra and penumbra due to distributed light sources is presented. The method used is based on the inclusion of the shadow volumes in the object data processed by a depth-buffer visible surface computation. The standard depth-buffer data structure is modified to allow the handling of shadows with a depth-buffer hidden surface algorithm. The algorithm i...
متن کاملUmbra Designer: Graphical Modelling for Telephony Services
Almira Labs is a software company that develops valueadded services for the telecommunications industry. It is focused on innovative technologies that enable enterprise business and mobile and landline operators to offer next-generation voice-driven applications for all types of phones. Telephony services are built atop the proprietary Umbra framework, which is a Java API relying on the JAIN SL...
متن کاملUmbra – A Tutorial from client share detect.c
Umbra is an efficient and scalable memory shadowing tool built on top of DynamoRIO, which is a state-ofthe-art runtime code manipulation system. Using the APIs provided by DynamoRIO, Umbra inserts code into the applications runtime instruction stream to perform memory address translation from application memory to shadow memory. Umbra also provides a simple interface that enables developers to ...
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ژورنال
عنوان ژورنال: COnTEXTES
سال: 2011
ISSN: 1783-094X
DOI: 10.4000/contextes.4791