Switch from GtkGLExt to internal OpenGL handling GtkGLExt has many problems: - It's code is bloated and convoluted - It doesn't work on Win32 - It doesn't work with gtk+-3.0 - The last release was in early 2006 Using our own lets us fix these issues and should be easier to maintain than trying to figure out the GtkGLExt mess, or waiting for someone else to fix it.
Add GritsTester for debugging GritsObjects The "tester" object is similar to a stripped down version of GisOpenGL/GisViewer. It is intended for debugging GisObjects during development. It displays one or more objects centered in the view and and supports panning/moving around to inspect various parts of the object.
Add GritsVolume for 3D volume rendering This is based on the Marching Cubes algorithm. Be warned, the API for this is not quite entirely stable..