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Dimo Chotrov

Publications and source records attributed to Dimo Chotrov.

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Affordable Virtual Reality System Architecture for Representation of Implicit Object Properties

A flexible, scalable and affordable virtual reality software system architecture is proposed. This solution can be easily implemented on different hardware configurations: on a single computer or on a computer cluster. The architecture is aimed to be integrated in the workflow for solving engineering tasks and oriented towards presenting implicit object properties through multiple sensorial channels (visual, audio and haptic). Implicit properties represent hidden object features (i.e. magnetization, radiation, humidity, toxicity, etc.) which cannot be perceived by the observer through his or her senses but require specialized equipment in order to expand the sensory ability of the observer. Our approach extends the underlying general scene graph structure incorporating additional effects nodes for implicit properties representation.

cs.GR

Post-processing of Engineering Analysis Results for Visualization in VR Systems

The applicability of Virtual Reality for evaluating engineering analysis results is beginning to receive increased appreciation in the last years. The problem many engineers are still facing is how to import their model together with the analysis results in a virtual reality environment for exploration and results validation. In this paper we propose an algorithm for transforming model data and results from finite element analysis (FEA) solving application to a format easily interpretable by a virtual reality application. The algorithm includes also steps for reducing the face-count of the resulting mesh by eliminating faces from the inner part of the model in the cases when only the surfaces of the model is analyzed. We also describe a possibility for simultaneously assessing multiple analysis results relying on multimodal results presentation by stimulating different senses of the operator.

cs.GR