diff --git a/NOTES.md b/NOTES.md
index 421c7f7..b853db5 100644
--- a/NOTES.md
+++ b/NOTES.md
@@ -29,3 +29,11 @@ venkovního úhlu. Protože reálně jsem od něj mega daleko, takže portálov
   - Tohle platí hlavně u ~~free-standing~~ portálů na které jde koukat z obou stran. *Bylo by divné kdyby byl zezadu portálu ve vzduchu light source jenom proto, že na druhé straně portálu (bůh ví kde) takový source někde je*
   - Free-standing portál neni uplně dobrý příklad, protože by to světlo mělo házet _výseč_ ven. To ničím fajné, to jsme zpátky u raytracingu. Leda by to člověk oblbnul nějakým shadow meshem nebo něco.. hm. Velmi specifické. Ale u těch dveří jako v semaforovém levelu by to fungovalo asi v pohodě, protože kolem futer je stěna.
     - Spotlight..?
+
+### Procedural mesh
+
+- Normály jsou pass. Mám jenom 8 vertexů, takže to bude dycky vypadat blbě. Ale portály jsou stejně vždycky unshaded.
+  - Zmínit v DP! Docela dobrý sell, obhajoba rozhodnutí.
+- Když se na portál podívám přímo zepředu (ortogonálně), tak ten indent není vubec vidět. Nejsem si jistý jestli to je k něčemu.. ten portálový mesh který jsem vzal z _simple portal sytem_ ani žádné UV coodinates nemá.
+
+![portal-uv-coordinates](assets/portal-uv-coordinates.png)
diff --git a/assets/.gdignore b/assets/.gdignore
new file mode 100644
index 0000000..e69de29
diff --git a/assets/portal-uv-coordinates.png b/assets/portal-uv-coordinates.png
new file mode 100644
index 0000000..132b6ea
Binary files /dev/null and b/assets/portal-uv-coordinates.png differ
diff --git a/levels/test_procedural_portal.tscn b/levels/test_procedural_portal.tscn
index ae003c4..4c3614a 100644
--- a/levels/test_procedural_portal.tscn
+++ b/levels/test_procedural_portal.tscn
@@ -1,24 +1,22 @@
-[gd_scene load_steps=9 format=4 uid="uid://c0ieh1abu1xne"]
+[gd_scene load_steps=8 format=4 uid="uid://c0ieh1abu1xne"]
 
-[ext_resource type="Texture2D" uid="uid://c8nq55glypfp8" path="res://addons/kenney_prototype_tools/textures/light/texture_07.png" id="1_dn1le"]
+[ext_resource type="Material" uid="uid://bv36triwinl2f" path="res://textures/uv-checker-material.tres" id="1_dn1le"]
 [ext_resource type="Script" uid="uid://d2bvvjsibau8c" path="res://addons/simple-portal-system/scripts/portal.gd" id="1_ksg6r"]
 [ext_resource type="PackedScene" uid="uid://d1dtxvwk86ple" path="res://procedural_mesh_maker.tscn" id="2_4vena"]
 
-[sub_resource type="StandardMaterial3D" id="StandardMaterial3D_dn1le"]
-albedo_texture = ExtResource("1_dn1le")
-
-[sub_resource type="ArrayMesh" id="ArrayMesh_4vena"]
+[sub_resource type="ArrayMesh" id="ArrayMesh_1w8eh"]
 _surfaces = [{
-"aabb": AABB(-1, -1.3, -0.1, 2, 2.6, 0.1),
-"attribute_data": PackedByteArray("AAAAAAAAAAAAAIA/AAAAAAAAAAAAAIA/AACAPwAAgD/NzMw9zczMPWZmZj/NzMw9zczMPWZmZj9mZmY/ZmZmPw=="),
+"aabb": AABB(-1, -1.3, -0.133, 2, 2.6, 0.133),
+"attribute_data": PackedByteArray("AAAAAAAAAAAAAIA/AAAAAAAAAAAAAIA/AACAPwAAgD8nMYg9soZRPdv5bj+yhlE9JzGIPZXncj/b+W4/ledyPw=="),
 "format": 34359742487,
 "index_count": 30,
 "index_data": PackedByteArray("AAABAAQABAABAAUAAQADAAUABQADAAcAAwACAAcABwACAAYAAgAAAAYABgAAAAQABAAFAAYABgAFAAcA"),
-"material": SubResource("StandardMaterial3D_dn1le"),
+"material": ExtResource("1_dn1le"),
+"name": "Portal Material",
 "primitive": 3,
 "uv_scale": Vector4(0, 0, 0, 0),
 "vertex_count": 8,
-"vertex_data": PackedByteArray("AACAv2Zmpj8AAAAAAACAP2Zmpj8AAAAAAACAv2Zmpr8AAAAAAACAP2Zmpr8AAAAAZmZmv5mZmT/NzMy9ZmZmP5mZmT/NzMy9ZmZmv5mZmb/NzMy9ZmZmP5mZmb/NzMy9/3//f/9/AID/f/9//38AgP9//3//fwCA/3//f/9/AID/f/9//38AgP9//3//fwCA/3//f/9/AID/f/9//38AgA==")
+"vertex_data": PackedByteArray("AACAv2Zmpj8AAAAAAACAP2Zmpj8AAAAAAACAv2Zmpr8AAAAAAACAP2Zmpr8AAAAAtvNdv0FglT8nMQi+tvNdP0FglT8nMQi+tvNdv0Fglb8nMQi+tvNdP0Fglb8nMQi+/3//f/9/AID/f/9//38AgP9//3//fwCA/3//f/9/AID/f/9//38AgP9//3//fwCA/3//f/9/AID/f/9//38AgA==")
 }]
 
 [sub_resource type="StandardMaterial3D" id="StandardMaterial3D_82kw5"]
@@ -58,18 +56,18 @@ shadow_mesh = SubResource("ArrayMesh_dn1le")
 [node name="ProceduralPortal" type="Node3D"]
 
 [node name="MeshInstance3D" type="MeshInstance3D" parent="."]
-mesh = SubResource("ArrayMesh_4vena")
+transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, 7.4625e-05, -0.0007523, 0.000824571)
+mesh = SubResource("ArrayMesh_1w8eh")
 script = ExtResource("1_ksg6r")
 
 [node name="ProceduralMeshMaker" parent="." node_paths=PackedStringArray("portal") instance=ExtResource("2_4vena")]
 height = 2.6
 width = 2.0
+indent = 0.133
 portal = NodePath("../MeshInstance3D")
 
 [node name="OmniLight3D" type="OmniLight3D" parent="."]
 transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, -1.52963, 0, 1.51112)
-light_color = Color(5.0056e-06, 0.824088, 0.326623, 1)
-light_energy = 2.0
 metadata/_edit_lock_ = true
 
 [node name="OfficialPortal" type="MeshInstance3D" parent="."]
diff --git a/procedural_mesh_maker.gd b/procedural_mesh_maker.gd
index f78eaf3..e4bb220 100644
--- a/procedural_mesh_maker.gd
+++ b/procedural_mesh_maker.gd
@@ -8,6 +8,8 @@ extends Node
 
 @export var portal: Portal
 
+const UV_CHECKER_MATERIAL = preload("res://textures/uv-checker-material.tres")
+
 func _add_inspector_buttons() -> Array:
 	var buttons = []
 	
@@ -36,8 +38,9 @@ func generate_portal_mesh() -> void:
 		return
 	
 	if portal.mesh != null:
-		push_warning("The portal %s already has a mesh!" % portal.name)
-		return
+		push_warning("The portal %s already has a mesh! Replacing." % portal.name)
+		portal.mesh = null
+		
 	
 	var mesh = ArrayMesh.new()
 	print("[PMM] Creating mesh")
@@ -53,7 +56,7 @@ func generate_portal_mesh() -> void:
 	# Just to save some chars
 	var w = width / 2
 	var h = height / 2
-	var i = indent 
+	
 	
 	# Outside rect
 	var TOP_LEFT = Vector3(-w, h, 0)
@@ -71,9 +74,11 @@ func generate_portal_mesh() -> void:
 		INDENT_TL, INDENT_TR, INDENT_BL, INDENT_BR
 		])
 	
+	var ix = indent / width
+	var iy = indent / height
 	uvs.append_array([
 		Vector2(0, 0), Vector2(1, 0), Vector2(0, 1), Vector2(1, 1), # Outside UVs
-		Vector2(i, i), Vector2(1-i, i), Vector2(i, 1-i), Vector2(1-i, 1-i) # Indented UVs
+		Vector2(ix, iy), Vector2(1-ix, iy), Vector2(ix, 1-iy), Vector2(1-ix, 1-iy) # Indented UVs
 		])
 	
 	# We are going for a flat-surface look here. Portals should be unshaded anyways.
@@ -104,7 +109,7 @@ func generate_portal_mesh() -> void:
 		6, 0, 4, # left section done
 		
 		4, 5, 6,
-		6, 5, 7 # middle done
+		6, 5, 7, # middle sectiondone
 		]) 
 	
 	surface_array[Mesh.ARRAY_VERTEX] = verts
@@ -112,7 +117,9 @@ func generate_portal_mesh() -> void:
 	surface_array[Mesh.ARRAY_NORMAL] = normals
 	surface_array[Mesh.ARRAY_INDEX] = indices
 	
-	# No blendshapes, lods, or compression used.
+	# TODO: Shadow mesh maybe? Should a portal even cast a shadow?
 	mesh.add_surface_from_arrays(Mesh.PRIMITIVE_TRIANGLES, surface_array)
+	mesh.surface_set_material(0, UV_CHECKER_MATERIAL)
+	mesh.surface_set_name(0, "Portal Material")
 	portal.mesh = mesh
 	print("[PMM] Mesh assigned")
diff --git a/textures/uv-checker-material.tres b/textures/uv-checker-material.tres
new file mode 100644
index 0000000..ac10108
--- /dev/null
+++ b/textures/uv-checker-material.tres
@@ -0,0 +1,7 @@
+[gd_resource type="StandardMaterial3D" load_steps=2 format=3 uid="uid://bv36triwinl2f"]
+
+[ext_resource type="Texture2D" uid="uid://ya8afistbdec" path="res://textures/uv-checker.png" id="1_xdbe0"]
+
+[resource]
+shading_mode = 0
+albedo_texture = ExtResource("1_xdbe0")
diff --git a/textures/uv-checker.png b/textures/uv-checker.png
new file mode 100644
index 0000000..42ac905
Binary files /dev/null and b/textures/uv-checker.png differ
diff --git a/textures/uv-checker.png.import b/textures/uv-checker.png.import
new file mode 100644
index 0000000..a0631c6
--- /dev/null
+++ b/textures/uv-checker.png.import
@@ -0,0 +1,35 @@
+[remap]
+
+importer="texture"
+type="CompressedTexture2D"
+uid="uid://ya8afistbdec"
+path.s3tc="res://.godot/imported/uv-checker.png-26b18af46d2dfdb0ee67624bb4da1f2d.s3tc.ctex"
+metadata={
+"imported_formats": ["s3tc_bptc"],
+"vram_texture": true
+}
+
+[deps]
+
+source_file="res://textures/uv-checker.png"
+dest_files=["res://.godot/imported/uv-checker.png-26b18af46d2dfdb0ee67624bb4da1f2d.s3tc.ctex"]
+
+[params]
+
+compress/mode=2
+compress/high_quality=false
+compress/lossy_quality=0.7
+compress/hdr_compression=1
+compress/normal_map=0
+compress/channel_pack=0
+mipmaps/generate=true
+mipmaps/limit=-1
+roughness/mode=0
+roughness/src_normal=""
+process/fix_alpha_border=true
+process/premult_alpha=false
+process/normal_map_invert_y=false
+process/hdr_as_srgb=false
+process/hdr_clamp_exposure=false
+process/size_limit=0
+detect_3d/compress_to=0