diff --git a/engine/physics/src/minimum_difference.rs b/engine/physics/src/minimum_difference.rs
index 0ef37155..cd5adb3b 100644
--- a/engine/physics/src/minimum_difference.rs
+++ b/engine/physics/src/minimum_difference.rs
@@ -288,9 +288,15 @@ fn reduce_simplex(
 			let uv_p = uv.dot(p);
 
 			// if pvw/uvw >= 0 and upw/uvw >= 0 and uvp/uvw >= 0 then
-			// 	local direction = Vector3.new(0, 0, 0)
-			// 	return direction, a0, a1, b0, b1, c0, c1, d0, d1
-			// end
+			// TODO: reduce this
+			if (pv_w.is_zero()||pv_w.is_negative()^uv_w.is_negative())
+			||(up_w.is_zero()||up_w.is_negative()^uv_w.is_negative())
+			||(uv_p.is_zero()||uv_p.is_negative()^uv_w.is_negative()){
+				// origin is contained, this is a positive detection
+				// local direction = Vector3.new(0, 0, 0)
+				// return direction, a0, a1, b0, b1, c0, c1, d0, d1
+				return (vec3::zero(),simplex);
+			}
 
 			// local uvwSign = uvw < 0 and -1 or uvw > 0 and 1 or 0
 			// local uvDist = uvp*uvwSign/uv.magnitude