diff --git a/src/org/mapsforge/android/glrenderer/Shaders.java b/src/org/mapsforge/android/glrenderer/Shaders.java
index 17dd3df1..1e9696f5 100644
--- a/src/org/mapsforge/android/glrenderer/Shaders.java
+++ b/src/org/mapsforge/android/glrenderer/Shaders.java
@@ -40,20 +40,21 @@ class Shaders {
 			+ "  lowp float len;"
 			+ "  lowp float fuzz;"
 			+ "  lowp float width = u_mode[1];"
-			+ "  if (v_st.t == zero){ "
-			+ "     fuzz = fwidth(v_st.s) * fuzzf;"
-			+ "     len = width - abs(v_st.s);"
-			+ "  } else {"
+			// + "  if (v_st.t == zero){ "
+			// + "     fuzz = fwidth(v_st.s) * fuzzf;"
+			// + "     len = width - abs(v_st.s);"
+			// + "  } else {"
 			+ "     fuzz = max(fwidth(v_st.s), fwidth(v_st.t)) * fuzzf;"
 			+ "     len = width - length(v_st);"
-			+ "  } "
+			// + "  } "
 			// + "  if (len < min_fuzz)"
 			// + "    discard;"
 			// + "    alpha = zero;"
-			// + "  if (len < fuzz) {"
+			+ "  if (len < fuzz) {"
 			+ "     lowp float min_fuzz = -fuzz * u_mode[0];"
 			+ "     color.a *= smoothstep(min_fuzz, fuzz, len);"
-			// + "  }"
+			// + "     if (color.a == 0.0 ) color = vec4(1.0,0.0,0.0,1.0);"
+			+ "  }"
 			+ "  gl_FragColor = color;"
 			+ "}";
 
@@ -86,6 +87,7 @@ class Shaders {
 	// + "      } "
 	// + "glFragColor = color"
 	// + "}";
+
 	// final static String gLineFragmentShader = ""
 	// + "#extension GL_OES_standard_derivatives : enable\n"
 	// + "precision mediump float;"