diff --git a/.gitattributes b/.gitattributes
index 660c855..7bac928 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -2,3 +2,4 @@
 *.glb filter=lfs diff=lfs merge=lfs -text
 *.jpg filter=lfs diff=lfs merge=lfs -text
 *.jpeg filter=lfs diff=lfs merge=lfs -text
+*.blend filter=lfs diff=lfs merge=lfs -text
diff --git a/game/assets/assets.odin b/game/assets/assets.odin
index 67e6d0d..4e072da 100644
--- a/game/assets/assets.odin
+++ b/game/assets/assets.odin
@@ -305,30 +305,30 @@ get_convex :: proc(assetman: ^Asset_Manager, path: cstring) -> (result: Loaded_C
 				}
 				face.normal = plane.normal
 
-				// for index in indices[3:] {
-				// 	assert(
-				// 		abs(collision.signed_distance_plane(vertices[index].pos, plane)) < 0.01,
-				// 		"mesh has non planar faces",
-				// 	)
-				// }
+				for index in indices[3:] {
+					assert(
+						abs(collision.signed_distance_plane(vertices[index].pos, plane)) < 0.01,
+						"mesh has non planar faces",
+					)
+				}
 
-				// first_vert_pos := vertices[indices[0]].pos
+				first_vert_pos := vertices[indices[0]].pos
 
 				for i in 0 ..< len(indices) {
 					edge_idx := halfedge.Edge_Index(first_edge_idx + i)
 					prev_edge_relative := i == 0 ? len(indices) - 1 : i - 1
 					next_edge_relative := (i + 1) % len(indices)
 					i1, i2 := indices[i], indices[next_edge_relative]
-					v1, _ := &vertices[i1], &vertices[i2]
+					v1, v2 := &vertices[i1], &vertices[i2]
 
-					// assert(
-					// 	lg.dot(
-					// 		lg.cross(v1.pos - first_vert_pos, v2.pos - first_vert_pos),
-					// 		plane.normal,
-					// 	) >=
-					// 	0,
-					// 	"non convex face or non ccw winding",
-					// )
+					assert(
+						lg.dot(
+							lg.cross(v1.pos - first_vert_pos, v2.pos - first_vert_pos),
+							plane.normal,
+						) >=
+						0,
+						"non convex face or non ccw winding",
+					)
 
 					if v1.edge == -1 {
 						v1.edge = edge_idx
diff --git a/src_assets/car_convex.blend b/src_assets/car_convex.blend
index 3d67405..1b13577 100644
Binary files a/src_assets/car_convex.blend and b/src_assets/car_convex.blend differ