On 24 Oct 2011, at 10:09, thorsten.i.r...@jyu.fi wrote: > Yes, the angles between eye and sun are constants per frame throughout the > scene :-) So is hazeColor. My problem is not passing the value from the > property tree, my problem is getting it there - I'm not a C++ coder, I > have no clue where to look for gl_LightSource outside the shader, I have > no idea how (lat/lon/alt) property coordinates map into (x,y,z) in the > rendering process and I have no real idea how to make a vec3 out of > property values.
I believe that's an area I / Mathias / Tim can help with, if pestered sufficiently :) In my case mostly re-using other people's code - thanks to Mathias we have a good library of functions to map geodetic/geocentric coordinates (lat/lon/elev) to various cartesian reference frames - earth-centered, the 'local viewer frame', which is pretty close to the OpenGL XYZ, and others besides. James ------------------------------------------------------------------------------ The demand for IT networking professionals continues to grow, and the demand for specialized networking skills is growing even more rapidly. Take a complimentary Learning@Cisco Self-Assessment and learn about Cisco certifications, training, and career opportunities. http://p.sf.net/sfu/cisco-dev2dev _______________________________________________ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
