Added darklands

resources/shaders/darklands_fog_desktop.fragment

@@ -0,0 +1,21 @@
+//precisionmediump float;
+uniform sampler2D Texture;
+uniform float uAlpha;
+varying vec2 texCoord;
+varying float fogDistance;
+
+void main()
+{
+	vec4 color = texture2D(Texture, texCoord).rgba;
+
+	if (color.a < 0.1)
+		discard;
+
+	vec3 tinted = mix(color.rgb, vec3(0.5, 0.5, 0.8), 0.3);
+
+	vec3 fogColor = vec3(0.05, 0.05, 0.2);
+	float fogFactor = clamp((fogDistance - 5.0) / 10.0, 0.0, 1.0);
+	vec3 finalColor = mix(tinted, fogColor, fogFactor);
+
+	gl_FragColor = vec4(finalColor, color.a * uAlpha);
+}