diff --git a/addons/material_maker/nodes/warp_dilation2_nobuf.mmg b/addons/material_maker/nodes/warp_dilation2_nobuf.mmg
index cd051a36..e477610c 100644
--- a/addons/material_maker/nodes/warp_dilation2_nobuf.mmg
+++ b/addons/material_maker/nodes/warp_dilation2_nobuf.mmg
@@ -46,7 +46,10 @@
 			"\tfloat v = 0.0;",
 			"\tfor (float x = 0.0; x <= $d; x += e) {",
 			"\t\tv = max(v, $in(fract(uv))*(1.0-x/$d*$a));",
-			"\t\tvec2 delta = $(name)_slope(uv, 0.0001);",
+			"\t\tvec2 delta = $(name)_slope(uv, e);",
+			"\t\tif (delta.x == 0.0 && delta.y == 0.0) {",
+			"\t\t\tbreak;",
+			"\t\t}",
 			"\t\tuv += e*normalize(delta);",
 			"\t}",
 			"\treturn v;",