Added darklands

resources/shaders/darklands_fog.vertex

@@ -0,0 +1,16 @@
+attribute vec3 vPosition;
+attribute vec2 vTexCoord;
+varying vec2 texCoord;
+varying float fogDistance;
+
+uniform mat4 ProjectionModelViewMatrix;
+uniform mat4 ModelViewMatrix;
+uniform vec3 uPlayerEyePos;
+
+void main()
+{
+	vec4 eyePos = ModelViewMatrix * vec4(vPosition.xyz, 1.0);
+	fogDistance = length(eyePos.xyz - uPlayerEyePos);
+	gl_Position = ProjectionModelViewMatrix * vec4(vPosition.xyz, 1.0);
+	texCoord = vTexCoord;
+}