LIDAR terrain drives RF path loss / occlusion (PointCloudGround, TerrainObstacleLoss, ground-mesh render)#1120

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vsg-lidar-pathloss

Commits on Jul 3, 2026

visualizer: adopt backend-neutral cScene3DNode (OSG+VSG coexistence)

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docs: vsg README — OSG and VSG can coexist; how to build with both

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.oppfeatures: VisualizationVsg no longer mutually exclusive with OSG

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visualizer: fix OSG-only build — add -I$(OMNETPP_ROOT)/src for osgscenehandle.h

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common: PLY point-cloud reader + 2.5D heightfield (LIDAR terrain groundwork)

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visualizer: vsg: load sceneModel terrain through the shared PLY reader

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environment: PointCloudGround — LIDAR PLY terrain as the physical ground

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physicallayer: TerrainObstacleLoss — minimal LIDAR terrain occlusion (LOS)

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Commits on Jul 6, 2026

visualizer: osg: include <osg/Node> where osg::Node is used

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physicallayer: TwoRayInterference: optional terrain-aware antenna heights

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physicallayer: TerrainObstacleLoss: graded fresnel mode + obstacle-loss tracing

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physicallayer: TerrainObstacleLoss: selectable obstruction marker geometry

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physicallayer: TerrainObstacleLoss: multi-edge Deygout diffraction mode

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visualizer: vsg: render a ground module's heightfield as a shaded mesh

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common: Heightfield: de-spike against the second-highest neighbor

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examples: vsglidar: add TerrainMeshOcclusion (mesh render + live occlusion)

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tests: strengthen Heightfield/TerrainObstacleLoss unit tests

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