Terrain Viewer
Interactive 3D DEM/DTM/DSM QC viewer with point/surface rendering, relief-shaded elevation and imagery RGB, cross-sections, contours, 3D measurement, adaptive detail, and safe visual densification.
Interactive 3D terrain and surface QC viewer for QGIS. Visualize and compare multiple DEM, DTM, and DSM rasters as either QC points or continuous triangle surfaces in a detached 3D viewport while keeping compact controls docked inside QGIS. Includes adaptive detail, display-only Dense 2x/3x native-Z scatter, high-resolution bilinear imagery RGB sampling with coherent synthetic-point color inheritance, display-only directional relief shading, adaptive screen-space point fill, Z-aware SHP/GeoPackage/GeoJSON line overlays, corridor-based cross-sections, surface-ribbon cross-sections, direct 3D measurement, Z-outlier handling, and cursor-focused navigation. Surface meshes never bridge NoData gaps; measurements and QC statistics remain based on native raster samples. No external Python packages or pip installation are required. Tested with QGIS 3.40.x and QGIS 3.44.x on Windows. QGIS 4 is not yet supported.