OpenSceneGraph Haptic Library

File Release Notes and Changelog

Release Name: osghaptics-060609-v0.2

Notes: Now with an example of how to use a hashed list to render only the triangles in proximity to the haptic proxy. This makes it possible to use very large static meshes.

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Changes: * 060515, Anders Backman - osgHapticViewer: Added command-line options: --proxy_scale <float> - Scale the size of the model used as a visual proxy --constraint <float> - Set the surface to be a constraint surface with snap_force specified --dynamic_friction <float> - Set the dynamic friction of the haptic surface --static_friction <float> - Set the static friction of the haptic surface --damping <float> - Set the damping in the friction equation (spring) --stiffness <float> - Set the stiffness in the friction equation (spring) *060519, Anders Backman - osgHapticViewer Added command-line option: --remove_instances - Will do a deep copy of the loaded scene which will then be used as the haptic subgraph. This will effectively remove any instances that can cause problem with haptic rendering. * 060602, Anders Backman - osgHapticViewer: Added a simple Hash test for large meshes, including arguments for osgHapticViewer: --hash - Hash the loaded model for intersection test --cell-size - Size of the hash cell --render-triangles - Render the triangles that are intersected with the proxy The hash test is an example of how to store triangles in a hash datastructure and to only haptically render the triangles in proximity to the Haptic proxy. It has been tested with models with 300.000 triangles. Without hash I get: Renamed arguments, using - instead of _ --proxy-scale <float> - Scale the size of the model used as a visual proxy --constraint <float> - Set the surface to be a constraint surface with snap_force specified --dynamic-friction <float> - Set the dynamic friction of the haptic surface --static-friction <float> - Set the static friction of the haptic surface --damping <float> - Set the damping in the friction equation (spring) --stiffness <float> - Set the stiffness in the friction equation (spring) --remove-instances * 060607, Anders Backman - osgHaptics: - Using the inverse of the WorkspaceMatrix for VIEW_WORKSPACE - osgHapticViewer: Added arguments: --bbox-volume - Set the haptic volume to fit the specified bounding box, default is to fit the current view volume --workspace-scale <float> - Uniform scale of the haptic workspace volume. 2 makes the volume twice as large.