diff --git a/code/renderer/tr_backend.c b/code/renderer/tr_backend.c
index fa00f379..a8c411e1 100644
--- a/code/renderer/tr_backend.c
+++ b/code/renderer/tr_backend.c
@@ -402,31 +402,45 @@ void GL_State( unsigned long stateBits )
 	//
 	if ( diff & GLS_ATEST_BITS )
 	{
-		switch ( stateBits & GLS_ATEST_BITS )
+		switch (stateBits & GLS_ATEST_BITS)
 		{
 		case 0:
-			qglDisable( GL_ALPHA_TEST );
+			qglDisable(GL_ALPHA_TEST);
 			break;
 		case GLS_ATEST_GT_0:
-			qglEnable( GL_ALPHA_TEST );
-			qglAlphaFunc( GL_GREATER, 0.0f );
+			qglEnable(GL_ALPHA_TEST);
+			qglAlphaFunc(GL_GREATER, 0.05f);
 			break;
 		case GLS_ATEST_LT_80:
-			qglEnable( GL_ALPHA_TEST );
-			qglAlphaFunc( GL_LESS, 0.5f );
+			qglEnable(GL_ALPHA_TEST);
+			qglAlphaFunc(GL_LESS, 0.5f);
 			break;
 		case GLS_ATEST_GE_80:
-			qglEnable( GL_ALPHA_TEST );
-			qglAlphaFunc( GL_GEQUAL, 0.5f );
+			qglEnable(GL_ALPHA_TEST);
+			qglAlphaFunc(GL_GEQUAL, 0.5f);
+			break;
+		case GLS_ATEST_LT_FOLIAGE1:
+			qglEnable(GL_ALPHA_TEST);
+			qglAlphaFunc(GL_LESS, r_alpha_foliage1->value);
+			break;
+		case GLS_ATEST_GE_FOLIAGE1:
+			qglEnable(GL_ALPHA_TEST);
+			qglAlphaFunc(GL_GEQUAL, r_alpha_foliage1->value);
+			break;
+		case GLS_ATEST_LT_FOLIAGE2:
+			qglEnable(GL_ALPHA_TEST);
+			qglAlphaFunc(GL_LESS, r_alpha_foliage2->value);
+			break;
+		case GLS_ATEST_GE_FOLIAGE2:
+			qglEnable(GL_ALPHA_TEST);
+			qglAlphaFunc(GL_GEQUAL, r_alpha_foliage2->value);
 			break;
 		default:
-			assert( 0 );
+			assert(0);
 			break;
 		}
 	}
 
-
-
 	if (diff & GLS_CLAMP_EDGE)
 	{
 		float clampValue;
@@ -471,7 +485,7 @@ void GL_State( unsigned long stateBits )
 			qglTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, clampValue);
 		}
 	}
-
+	
 	if (diff & GLS_FOG)
 	{
 		if (glState.externalSetState & GLS_FOG)
diff --git a/code/renderer/tr_local.h b/code/renderer/tr_local.h
index 2f389d34..4ba898c0 100644
--- a/code/renderer/tr_local.h
+++ b/code/renderer/tr_local.h
@@ -1690,8 +1690,12 @@ void	GL_Cull( int cullType );
 
 #define GLS_ATEST_GT_0							0x10000000
 #define GLS_ATEST_LT_80							0x20000000
-#define GLS_ATEST_GE_80							0x40000000
-#define		GLS_ATEST_BITS						0x70000000
+#define GLS_ATEST_GE_80							0x30000000
+#define GLS_ATEST_LT_FOLIAGE1					0x40000000
+#define GLS_ATEST_GE_FOLIAGE1					0x50000000
+#define GLS_ATEST_LT_FOLIAGE2					0x60000000
+#define GLS_ATEST_GE_FOLIAGE2					0x70000000
+#define GLS_ATEST_BITS							0x70000000
 
 #define GLS_DEFAULT			GLS_DEPTHMASK_TRUE
 
diff --git a/code/renderer/tr_shader.c b/code/renderer/tr_shader.c
index 8cd95e2f..9aa804c9 100644
--- a/code/renderer/tr_shader.c
+++ b/code/renderer/tr_shader.c
@@ -200,6 +200,22 @@ static unsigned NameToAFunc( const char *funcname )
 	{
 		return GLS_ATEST_GE_80;
 	}
+	else if ( !Q_stricmp( funcname, "LT_FOLIAGE1" ) )
+	{
+		return GLS_ATEST_LT_FOLIAGE1;
+	}
+	else if ( !Q_stricmp( funcname, "GE_FOLIAGE1" ) )
+	{
+		return GLS_ATEST_GE_FOLIAGE1;
+	}
+	else if ( !Q_stricmp( funcname, "LT_FOLIAGE2" ) )
+	{
+		return GLS_ATEST_LT_FOLIAGE2;
+	}
+	else if ( !Q_stricmp( funcname, "GE_FOLIAGE2" ) )
+	{
+		return GLS_ATEST_GE_FOLIAGE2;
+	}
 
 	ri.Printf( PRINT_WARNING, "WARNING: invalid alphaFunc name '%s' in shader '%s'\n", funcname, shader.name );
 	return 0;