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Dynamically changing LOD distances


jdurrant
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Seems to work! The code is pretty trivial, but in case it helps others:

function adjustLODDistances(dist1: number, dist2: number, dist3ForNull: number) {
    for (let i = 0; i < scene.meshes.length; i++) {
        let m =scene.meshes[i];

        if (m.hasLODLevels === true) {
            // Get the current LOD levels
            let CurLODDist1 = m._LODLevels[0].distance;
            let CurLODDist2 = m._LODLevels[1].distance;
            let CurLODDist3 = m._LODLevels[2].distance;

            // Get the LOD meshes at those levels.
            let lodMesh1 = m.getLODLevelAtDistance(CurLODDist1);
            let lodMesh2 = m.getLODLevelAtDistance(CurLODDist2);
            let lodMesh3 = m.getLODLevelAtDistance(CurLODDist3);

            // Remove those levels from the mesh
            m.removeLODLevel(lodMesh1);
            m.removeLODLevel(lodMesh2);
            m.removeLODLevel(lodMesh3);

            // Add them back in, with new distances
            m.addLODLevel(dist1, lodMesh1);
            m.addLODLevel(dist2, lodMesh2);
            m.addLODLevel(dist3ForNull, lodMesh3);
        }
    }
}

 

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