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A hybrid rugosity mesostructure (HRM) for faster rendering of fine haptic detail
Theoktisto, Víctor; Fairén González, Marta; Navazo Álvaro, Isabel
Universitat Politècnica de Catalunya. Departament de Llenguatges i Sistemes Informàtics; Universitat Politècnica de Catalunya. MOVING - Grup de Recerca en Modelatge, Interacció i Visualització en Realitat Virtual
We propose a faster method for surface haptic rendering using image-based Hybrid Rugosity Mesostructures (HRMs), paired maps with per-face height eld displacements and normalmaps, which are layered on top of a much decimated mesh. The haptic probe's force response algorithm is modulated using the blended HRM coat to render surface features at much lower costs. The proposed method solves typical problems at edge crossings, concave foldings and texture transitions. To prove the wellness of the approach, a usability testbed framework was built to measure and compare experimental results of haptic rendering approaches. Trial results of user testing evaluations show the goodness of the proposed HRM technique, rendering accurate 3D surface detail at high sampling rates, deriving useful modeling and perception thresholds for this technique.
Àrees temàtiques de la UPC::Informàtica::Infografia
Three-dimensional imaging
Haptic Rendering
Mesostructure
Displacement mapping
Hybrid rugosity mesostructure
Infografia tridimensional
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