nuclear@16: varying vec3 vpos, norm, ldir;
nuclear@16: 
nuclear@16: void main()
nuclear@16: {
nuclear@16: 	gl_Position = ftransform();
nuclear@16: 
nuclear@16: 	vpos = (gl_ModelViewMatrix * gl_Vertex).xyz;
nuclear@16: 	norm = gl_NormalMatrix * gl_Normal;
nuclear@16: 
nuclear@16: 	ldir = gl_LightSource[0].position.xyz - vpos;
nuclear@16: }