Asset Terrain Inspector

Drop .assetz (or .assetterrain) archives, terrain .json metadata files together with their matching .asset and .cogsbin files (dropping the whole output folder works too), or a .pmtiles archive - or enter their URL below. PMTiles are drawn on a flat plane while no terrain is loaded; once a terrain dataset is loaded, assign a raster to a terrain slot (see the PMTiles layers list below) to drape it onto the terrain instead - the flat plane is only used as a fallback when there is no terrain to drape onto. Draped imagery is composited on top of the terrain's elevation colouring, so a raster does not need to cover the whole terrain: areas outside its geographic extent keep showing the elevation colours. Wheel zooms to the cursor, middle-drag pans, left-drag orbits about the click, right-drag dollies. Once a terrain dataset or a PMTiles layer is loaded, use the GPS markers section below to drop a coloured sphere at a WGS84 lat/lon: it is projected into the dataset's coordinate system via proj4, or - when no dataset is loaded - onto the reference PMTiles layer's own lon/lat extent.