vec3 horizon = vec3( 0.8, 0.9, 0.9 );
vec3 skycolour = vec3( 0.5, 0.6, 0.9 );
vec3 diffuse = mix( skycolour, horizon, fblend );
vec3 horizon = vec3( 0.8, 0.9, 0.9 );
vec3 skycolour = vec3( 0.5, 0.6, 0.9 );
vec3 diffuse = mix( skycolour, horizon, fblend );