vec3 vfrag = vec3(0.5,0.5,0.5);
vec4 vsamplemain = texture( uTexMain, aUv );
vec3 qnorm = normalize(aNorm);
vec3 vfrag = vec3(0.5,0.5,0.5);
vec4 vsamplemain = texture( uTexMain, aUv );
vec3 qnorm = normalize(aNorm);
vfrag = do_light_shadowing( vfrag );
vfrag = apply_fog( vfrag, fdist );
vfrag = do_light_shadowing( vfrag );
vfrag = apply_fog( vfrag, fdist );