add DISTANT HORIZONS SHADER PROGRAMS, and then make them work.

shaders/lib/projections.glsl

@@ -8,7 +8,6 @@ uniform mat4 shadowProjection;
 
 uniform vec3 cameraPosition;
 
-
 #define diagonal3(m) vec3((m)[0].x, (m)[1].y, m[2].z)
 #define  projMAD(m, v) (diagonal3(m) * (v) + (m)[3].xyz)
 
@@ -52,4 +51,4 @@ vec3 toShadowSpaceProjected(vec3 p3){
     p3 = diagonal3(shadowProjection) * p3 + shadowProjection[3].xyz;
 
     return p3;
-}
+}