Finally fog is working

shaders/planet_bake_desktop.fragment

@@ -0,0 +1,13 @@
+varying vec2 TexCoord;
+varying float vHeight;
+
+uniform sampler2D Texture;
+
+void main()
+{
+    vec4 stoneColor = texture2D(Texture, TexCoord);
+  
+    gl_FragColor = vec4(stoneColor.rgb, vHeight);
+	//gl_FragColor = vec4(vHeight, vHeight, vHeight, vHeight);
+	//gl_FragColor = vec4(1.0, 0.0, 1.0, 1.0);
+}