Below are various screen captures of Leveller in action.
You can click an image to see a larger version.
Basic view showing a loaded DEM with gridline and marker overlays on map.
Colormap dialog being used to switch to the Spectrum colormap.
Map Navigator dialog lets you pan the map easily.
The Map Navigator being used to examine a large imported DEM.
The Flatten tool with its 'Smooth' option lets us carve a wider river instantly.
Leveller's file dialogs provide one-click access to frequently-used folders.
We switch the map shading to "Good" to try out some dot-product lighting.
Three views of the same DEM with quick shading, no shading, and "Better" dot-product lighting. We also hit Alt-9 to switch the view panes and editing toolbars to the left side of the screen.
Selecting an irregular area of similar elevation with the Magic Wand tool. The scene view shows the selected region using darkened polygons.
Glaciating the same heightfield with the Mapping Function plug-in.
John Beale's HF-Lab, in Leveller plug-in form.
Leveller 2.2 alpha showing how it can overlay reference shapes on its map view. Here, we've attached the sample 'bridge.lsl' reference shape file.
Daylon XaoS copying a fractal image to Leveller as a heightfield.
Developing the Daylon XaoS splash screen with Leveller.
A view of the Earth's north pole, courtesy of a prototype spherical UV mapper.
The south pole. As it turns out, our example Mercator-projected heightfield contains accurate predistortions, because Antarctica looks correct.
A closeup on the south pole. What's evident from such views is that one needs heightfields of considerable resolution to make nice planetary bodies. The heightfield here measures 720 x 360 pixels. Because half of the heightfield is on the other side of the sphere, only half of its pixels are used to form the visible view.
Leveller 2.3 demonstrating transparent water in its 3D scene pane.
Leveller 2.3 demonstrating vertical pane stacking.
A Leveller 2.4 prototype demonstrating integrated scanline rendering.
Leveller 2.4 beta showing the selection mask by itself in the map view. Feathered and other gradual selections become child's play to figure out and to work with.
Leveller 2.4 beta demonstrating 3D editing. As you move the mouse pointer over the scene pane, the corresponding heightfield pixel is tracked and the current tool's brush size indicated. The thin brighter ring shows the pixel's elevation.
Leveller 2.5 beta demonstrating shadow previewing and soft shadow raytracing. You can enable shadows in ordinary views to quickly see where they are, and then the raytracer can render them as hard or soft as you want. The crater was made by the Craters plug-in.
Leveller 2.5 beta showing a raytraced rendering of the Sandia Crest DEM with imaginary water level.
Leveller 2.6 alpha showing large textured DEM of the island of Hawaii, with 400% vertical exaggeration and point-of-interest markers. Heightfield and texture courtesy of Virtual Terrain Project. Gridlines show georeferenced UTM coordinates.
Same thing from a different angle, with 200% brightness lighting and shadows.
Leveller 2.6 alpha showing a slope analysis of a textured DEM. Bright areas are gentle, dark areas are steep.
Leveller 2.6 beta demonstrating automatic LOD downsampling, triangle tesselation, and combined solid/wireframing mode. The heightfield is 4000 pixels square. The center of highest detail can be positioned anywhere from the look-at point to the heightfield point underneath the camera. The simplistic LOD algorithm shows tile cracking but is very fast and takes minimal extra memory.