#2381: lighting/shading for vector objects backward in nviz -------------------------+-------------------------------------------------- Reporter: cmbarton | Owner: grass-dev@… Type: defect | Status: new Priority: normal | Milestone: 7.1.0 Component: Tcl/Tk NVIZ | Version: svn-trunk Keywords: | Platform: Unspecified Cpu: Unspecified | -------------------------+-------------------------------------------------- I just tried to display a map with an overlay of vector points and they all looked black, regardless of the color I chose. Turns out that when the view is from the SE and the light is also from the SE (both defaults), the vector spheres are in shadow. If I switch the light to the NW, the face of the spheres are lit--but of course the shadows on the surface are going the other way. This reversal also applies to light height. When the light is low, a sphere is lit from the top; when the light is high, there is very oblique lighting--again reversed from the surface. So there is a flipped variable somewhere.
I've attached a screenshot of a surface and points with a view from the SE and lighting from the SE. The shadows on the surface are to the NW (correct), but the spheres in completely in shadow (incorrect). -- Ticket URL: <http://trac.osgeo.org/grass/ticket/2381> GRASS GIS <http://grass.osgeo.org> _______________________________________________ grass-dev mailing list grass-dev@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-dev