Interactive Focus+Context Rendering for Hexahedral Mesh Inspection

The visual inspection of a hexahedral mesh with respect to element quality is difficult due clutter and occlusions that are produced when rendering all faces or their edges simultaneously. Current approaches overcome this problem by using focus on specific elements then rendered opaque, carving away occluding view. In work, we make use advanced GPU shader functionality generate focus+context highlights the in selected region simultaneously conveys global structure deformation field. To achieve this, propose gradual transition from edge-based volumetric context rendering, combining fragment shader-based edge face per-pixel lists. A smoothly transitions between wireframe face-based including focus-dependent style depth-dependent thickness halos, lists used blend fragments correct visibility order. maintain regions, new method construct sheet-based level-of-detail hierarchy it information. user guides exploration process moving lens-like hotspot. Since operations performed GPU, interactive frame rates achieved even for large meshes.