diff --git a/src/DifBuilder.hx b/src/DifBuilder.hx
index cb32b117..8c64dc13 100644
--- a/src/DifBuilder.hx
+++ b/src/DifBuilder.hx
@@ -113,6 +113,10 @@ class DifBuilder {
 			friction: 0.2,
 			restitution: 0.5
 		},
+		"friction_low_shadow" => {
+			friction: 0.2,
+			restitution: 0.5
+		},
 		"friction_high" => {
 			friction: 1.5,
 			restitution: 0.5
@@ -206,6 +210,10 @@ class DifBuilder {
 			friction: 6,
 			restitution: 0.3
 		},
+		"friction_high_shadow" => {
+			friction: 6,
+			restitution: 0.3
+		},
 		];
 
 	static function createDefaultMaterial(onFinish:hxsl.Shader->Void, baseTexture:String, normalTexture:String, shininess:Float, specularColor:Vector,