diff --git a/cont/base/springcontent/shaders/GLSL/ShadowGenFragProg.glsl b/cont/base/springcontent/shaders/GLSL/ShadowGenFragProg.glsl
index 5c4c18f11db..e4672920dd9 100644
--- a/cont/base/springcontent/shaders/GLSL/ShadowGenFragProg.glsl
+++ b/cont/base/springcontent/shaders/GLSL/ShadowGenFragProg.glsl
@@ -3,23 +3,22 @@ uniform sampler2D alphaMaskTex;
 varying vec4 vertexShadowClipPos;
 
 void main() {
+	if (texture2D(alphaMaskTex, gl_TexCoord[0].st).a <= 0.5)
+		discard;
+
 	#if 0
-		#if 0
-		float  nearDepth = gl_DepthRange.near;
-		float   farDepth = gl_DepthRange.far;
-		float depthRange = gl_DepthRange.diff; // far - near
-		float  clipDepth = vertexShadowClipPos.z / vertexShadowClipPos.w;
+	float  nearDepth = gl_DepthRange.near;
+	float   farDepth = gl_DepthRange.far;
+	float depthRange = gl_DepthRange.diff; // far - near
+	float  clipDepth = vertexShadowClipPos.z / vertexShadowClipPos.w;
 
-		// useful to keep around
-		gl_FragDepth = ((depthRange * clipDepth) + nearDepth + farDepth) / 2.0;
+	// useful to keep around
+	gl_FragDepth = ((depthRange * clipDepth) + nearDepth + farDepth) * 0.5;
 
-		#else
+	#else
 
-		// no-op, but would break early-z
-		// gl_FragDepth = gl_FragCoord.z;
-		#endif
+	// no-op, but breaks early-z
+	gl_FragDepth = gl_FragCoord.z;
 	#endif
-
-	gl_FragColor = texture2D(alphaMaskTex, gl_TexCoord[0].st);
 }
 
diff --git a/rts/Rendering/ShadowHandler.cpp b/rts/Rendering/ShadowHandler.cpp
index 309ba69a7ea..535a0537c1f 100644
--- a/rts/Rendering/ShadowHandler.cpp
+++ b/rts/Rendering/ShadowHandler.cpp
@@ -205,10 +205,10 @@ void CShadowHandler::LoadShadowGenShaderProgs()
 		for (int i = 0; i < SHADOWGEN_PROGRAM_LAST; i++) {
 			Shader::IProgramObject* po = sh->CreateProgramObject("[ShadowHandler]", shadowGenProgHandles[i] + "GLSL", false);
 			Shader::IShaderObject* vso = sh->CreateShaderObject("GLSL/ShadowGenVertProg.glsl", shadowGenProgDefines[i] + extraDef, GL_VERTEX_SHADER);
-			Shader::IShaderObject* fso = sh->CreateShaderObject("GLSL/ShadowGenFragProg.glsl", shadowGenProgDefines[i] + extraDef, GL_FRAGMENT_SHADER);
+			// Shader::IShaderObject* fso = sh->CreateShaderObject("GLSL/ShadowGenFragProg.glsl", shadowGenProgDefines[i] + extraDef, GL_FRAGMENT_SHADER);
 
 			po->AttachShaderObject(vso);
-			po->AttachShaderObject(fso);
+			// po->AttachShaderObject(fso);
 			po->Link();
 			po->SetUniformLocation("shadowParams");  // idx 0
 			po->SetUniformLocation("cameraDirX");    // idx 1, used by SHADOWGEN_PROGRAM_TREE_NEAR