Fixing lights and shadows

resources/shaders/night_fog_shadow.vertex

@@ -7,6 +7,7 @@ varying vec4 fragPosLightSpace;
 varying vec3 fragNormal;
 varying float fogDistance;
 varying vec3 fragViewPos;
+varying vec2 fragWorldXZ;
 
 uniform mat4 ProjectionModelViewMatrix;
 uniform mat4 ModelViewMatrix;
@@ -22,4 +23,5 @@ void main()
 	fragViewPos = eyePos.xyz;
 	fragNormal = mat3(ModelViewMatrix) * vNormal;
 	fragPosLightSpace = uLightFromCamera * eyePos;
+	fragWorldXZ = vPosition.xz;
 }