So it looks like a viable option for an OpenGL ES 1.x-compatible outline is to scale the model in the second pass (rather than drawing wireframe), calculating the scaling factor so that it outlines the normal-size model by approximately the required amount.
With a couple of approximations, the scaling factor works out a bit like this: scalef = ((2 * outlineWidth / viewPortHeight) + 1) * projection[1][1] * distanceFromCentreOfModelBoundingSpehereToEye / modelBoundingSphereRadius; and that's fine, but now the difficult part.... can a scaling operation even be implemented within the constraints of osgFX's pathways? If so, how? And if so, how can I retrieve the projectionMatrix, viewPort, and distance to the eyepoint? TIA, Phil. ------------------ Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=50668#50668 _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
