diff --git a/Effects/tree.eff b/Effects/tree.eff
index a49a4bb31..ae2d4864b 100644
--- a/Effects/tree.eff
+++ b/Effects/tree.eff
@@ -68,6 +68,10 @@
 				<source>src-alpha</source>
 				<destination>one-minus-src-alpha</destination>
 			</blend>
+			<alpha-test>
+				<comparison>gequal</comparison>
+				<reference type="float">0.1</reference>
+			</alpha-test>
 			<texture-unit>
 				<unit>0</unit>
 				<type>2d</type>
@@ -107,6 +111,10 @@
 				<wrap-s>clamp</wrap-s>
 				<wrap-t>clamp</wrap-t>
 			</texture-unit>
+			<alpha-test>
+				<comparison>gequal</comparison>
+				<reference type="float">0.1</reference>
+			</alpha-test>
       <program>
         <vertex-shader>Shaders/tree-haze.vert</vertex-shader>
         <fragment-shader>Shaders/tree-haze.frag</fragment-shader>
diff --git a/Shaders/tree-haze.vert b/Shaders/tree-haze.vert
index 222e3828e..0f298cb3e 100644
--- a/Shaders/tree-haze.vert
+++ b/Shaders/tree-haze.vert
@@ -95,7 +95,7 @@ void main()
 
   vec4 diffuse_color = gl_FrontMaterial.diffuse * max(0.1, n);
   //diffuse_color.a = 1.0;
-  vec4 ambient_color = gl_FrontLightModelProduct.sceneColor + gl_LightSource[0].ambient * gl_FrontMaterial.ambient;
+  vec4 ambient_color = gl_FrontMaterial.ambient;
 
     // here start computations for the haze layer
     // we need several geometrical quantities
diff --git a/Textures/Trees/tropical-summer.dds b/Textures/Trees/tropical-summer.dds
new file mode 100644
index 000000000..877e90cfd
Binary files /dev/null and b/Textures/Trees/tropical-summer.dds differ
diff --git a/Textures/Trees/tropical-summer.png b/Textures/Trees/tropical-summer.png
new file mode 100644
index 000000000..9fdfe0549
Binary files /dev/null and b/Textures/Trees/tropical-summer.png differ