diff --git a/addons/material_maker/engine/gen_base.gd b/addons/material_maker/engine/gen_base.gd
index 9d73321..a327543 100644
--- a/addons/material_maker/engine/gen_base.gd
+++ b/addons/material_maker/engine/gen_base.gd
@@ -42,6 +42,8 @@ func init_parameters():
 		if !parameters.has(p.name):
 			if p.has("default"):
 				parameters[p.name] = MMType.deserialize_value(p.default)
+				if p.type == "size":
+					parameters[p.name] -= p.first
 			else:
 				print("No default value for parameter "+p.name)
 
diff --git a/addons/material_maker/engine/gen_material.gd b/addons/material_maker/engine/gen_material.gd
index 63c76d0..0690255 100644
--- a/addons/material_maker/engine/gen_material.gd
+++ b/addons/material_maker/engine/gen_material.gd
@@ -35,7 +35,8 @@ func get_parameter_defs():
 		{ name="emission_energy", label="Emission", type="float", min=0.0, max=8.0, step=0.05, default=1.0 },
 		{ name="normal_scale", label="Normal", type="float", min=0.0, max=8.0, step=0.05, default=1.0 },
 		{ name="ao_light_affect", label="Ambient occlusion", type="float", min=0.0, max=1.0, step=0.05, default=1.0 },
-		{ name="depth_scale", label="Depth", type="float", min=0.0, max=1.0, step=0.05, default=1.0 }
+		{ name="depth_scale", label="Depth", type="float", min=0.0, max=1.0, step=0.05, default=1.0 },
+		{ name="size", label="Size", type="size", first=7, last=11, default=9 }
 	]
 
 func get_input_defs():
@@ -49,6 +50,14 @@ func get_input_defs():
 		{ name="depth_texture", label="", type="f" }
 	]
 
+func get_image_size():
+	var rv : int
+	if parameters.has("size"):
+		rv = int(pow(2, parameters.size+7))
+	else:
+		rv = 512
+	return rv
+
 func update_preview():
 	var graph_edit = self
 	while graph_edit is MMGenBase:
@@ -69,7 +78,7 @@ func render_textures(renderer : MMGenRenderer):
 		if t.has("port"):
 			var source = get_source(t.port)
 			if source != null:
-				var result = source.generator.render(source.output_index, renderer, 1024)
+				var result = source.generator.render(source.output_index, renderer, get_image_size())
 				while result is GDScriptFunctionState:
 					result = yield(result, "completed")
 				texture = ImageTexture.new()
@@ -91,7 +100,7 @@ func render_textures(renderer : MMGenRenderer):
 				else:
 					code.push_back({ defs="", code="", f=t.default_values[i] })
 			var shader : String = renderer.generate_combined_shader(code[0], code[1], code[2])
-			var result = renderer.render_shader(shader, shader_textures, 1024)
+			var result = renderer.render_shader(shader, shader_textures, get_image_size())
 			while result is GDScriptFunctionState:
 				result = yield(result, "completed")
 			texture = ImageTexture.new()
diff --git a/addons/material_maker/engine/renderer.gd b/addons/material_maker/engine/renderer.gd
index 7d2439c..1d16c2a 100644
--- a/addons/material_maker/engine/renderer.gd
+++ b/addons/material_maker/engine/renderer.gd
@@ -96,9 +96,10 @@ func render_shader(shader, textures, render_size):
 
 func copy_to_texture(t : ImageTexture):
 	var image : Image = get_texture().get_data()
-	image.lock()
-	t.create_from_image(get_texture().get_data())
-	image.unlock()
+	if image != null:
+		image.lock()
+		t.create_from_image(get_texture().get_data())
+		image.unlock()
 
 func save_to_file(fn : String):
 	var image : Image = get_texture().get_data()
diff --git a/addons/material_maker/main_window.tscn b/addons/material_maker/main_window.tscn
index 237882e..7969dca 100644
--- a/addons/material_maker/main_window.tscn
+++ b/addons/material_maker/main_window.tscn
@@ -1,11 +1,20 @@
-[gd_scene load_steps=7 format=2]
+[gd_scene load_steps=10 format=2]
 
 [ext_resource path="res://addons/material_maker/main_window.gd" type="Script" id=1]
 [ext_resource path="res://addons/material_maker/library.tscn" type="PackedScene" id=2]
 [ext_resource path="res://addons/material_maker/preview.tscn" type="PackedScene" id=3]
-[ext_resource path="res://addons/material_maker/widgets/tabs.gd" type="Script" id=4]
-[ext_resource path="res://addons/material_maker/engine/renderer.tscn" type="PackedScene" id=5]
-[ext_resource path="res://addons/material_maker/node_factory.gd" type="Script" id=6]
+[ext_resource path="res://addons/material_maker/panoramas/epping_forest_01.hdr" type="Texture" id=4]
+[ext_resource path="res://addons/material_maker/widgets/tabs.gd" type="Script" id=5]
+[ext_resource path="res://addons/material_maker/engine/renderer.tscn" type="PackedScene" id=6]
+[ext_resource path="res://addons/material_maker/node_factory.gd" type="Script" id=7]
+
+[sub_resource type="PanoramaSky" id=6]
+resource_local_to_scene = true
+panorama = ExtResource( 4 )
+
+[sub_resource type="Environment" id=7]
+background_mode = 2
+background_sky = SubResource( 6 )
 
 [node name="MainWindow" type="Panel"]
 anchor_right = 1.0
@@ -98,6 +107,7 @@ render_target_update_mode = 0
 
 [node name="Camera" type="Camera" parent="VBoxContainer/HBoxContainer/ProjectsPane/BackgroundPreview/Viewport"]
 transform = Transform( 1, 0, 0, 0, 0.766044, 0.642788, 0, -0.642788, 0.766044, 0, 2.24976, 2.68115 )
+environment = SubResource( 7 )
 current = true
 
 [node name="Projects" type="Panel" parent="VBoxContainer/HBoxContainer/ProjectsPane"]
@@ -106,7 +116,7 @@ anchor_right = 1.0
 anchor_bottom = 1.0
 size_flags_horizontal = 3
 size_flags_vertical = 3
-script = ExtResource( 4 )
+script = ExtResource( 5 )
 
 [node name="Tabs" type="Tabs" parent="VBoxContainer/HBoxContainer/ProjectsPane/Projects"]
 margin_right = 954.0
@@ -114,12 +124,12 @@ margin_bottom = 24.0
 tab_align = 0
 tab_close_display_policy = 1
 
-[node name="Renderer" parent="." instance=ExtResource( 5 )]
-size = Vector2( 1024, 1024 )
+[node name="Renderer" parent="." instance=ExtResource( 6 )]
+size = Vector2( 512, 512 )
 debug_path = null
 
 [node name="NodeFactory" type="Node" parent="."]
-script = ExtResource( 6 )
+script = ExtResource( 7 )
 [connection signal="need_update" from="VBoxContainer/HBoxContainer/VBoxContainer/Preview" to="." method="update_preview_3d"]
 [connection signal="show_background_preview" from="VBoxContainer/HBoxContainer/VBoxContainer/Preview" to="." method="_on_Preview_show_background_preview"]
 [connection signal="no_more_tabs" from="VBoxContainer/HBoxContainer/ProjectsPane/Projects" to="." method="new_material"]
diff --git a/addons/material_maker/nodes/image.tscn b/addons/material_maker/nodes/image.tscn
index ceea37f..503c7bc 100644
--- a/addons/material_maker/nodes/image.tscn
+++ b/addons/material_maker/nodes/image.tscn
@@ -20,7 +20,7 @@ slot/0/left_type = 0
 slot/0/left_color = Color( 0.5, 0.5, 1, 1 )
 slot/0/right_enabled = true
 slot/0/right_type = 0
-slot/0/right_color = Color( 0, 1, 0, 0.501961 )
+slot/0/right_color = Color( 0.5, 0.5, 1, 1 )
 script = ExtResource( 1 )
 
 [node name="TextureButton" type="TextureButton" parent="."]
diff --git a/addons/material_maker/preview.gd b/addons/material_maker/preview.gd
index 5aa34e5..7725ad3 100644
--- a/addons/material_maker/preview.gd
+++ b/addons/material_maker/preview.gd
@@ -13,6 +13,9 @@ onready var current_object = objects.get_child(0)
 onready var environments = $MaterialPreview/Preview3d/Environments
 onready var current_environment = environments.get_child(0)
 
+onready var camera_stand = $MaterialPreview/Preview3d/CameraPivot
+onready var camera = $MaterialPreview/Preview3d/CameraPivot/Camera
+
 signal need_update
 signal show_background_preview
 
@@ -72,10 +75,23 @@ func _on_Button_toggled(button_pressed):
 func on_gui_input(event):
 	if event is InputEventMouseButton:
 		$MaterialPreview/Preview3d/ObjectRotate.stop()
+		match event.button_index:
+			BUTTON_WHEEL_UP:
+				camera.translation.z *= 1.01 if event.shift else 1.1
+			BUTTON_WHEEL_DOWN:
+				camera.translation.z /= 1.01 if event.shift else 1.1
 	elif event is InputEventMouseMotion:
-		if event.button_mask & BUTTON_MASK_LEFT:
-			$MaterialPreview/Preview3d/Objects.rotation.y += 0.01*event.relative.x
-			$MaterialPreview/Preview3d/Objects.rotation.x += 0.01*event.relative.y
-		elif event.button_mask & BUTTON_MASK_RIGHT:
-			$MaterialPreview/Preview3d/CameraPivot.rotation.y += 0.01*event.relative.x
-			$MaterialPreview/Preview3d/CameraPivot.rotation.x -= 0.01*event.relative.y
+		var motion = 0.01*event.relative
+		var camera_basis = camera.global_transform.basis
+		if event.shift:
+			if event.button_mask & BUTTON_MASK_LEFT:
+				objects.rotate(camera_basis.x.normalized(), motion.y)
+				objects.rotate(camera_basis.y.normalized(), motion.x)
+			elif event.button_mask & BUTTON_MASK_RIGHT:
+				objects.rotate(camera_basis.z.normalized(), motion.x)
+		else:
+			if event.button_mask & BUTTON_MASK_LEFT:
+				camera_stand.rotate(camera_basis.x.normalized(), -motion.y)
+				camera_stand.rotate(camera_basis.y.normalized(), -motion.x)
+			elif event.button_mask & BUTTON_MASK_RIGHT:
+				camera_stand.rotate(camera_basis.z.normalized(), -motion.x)
diff --git a/addons/material_maker/preview.tscn b/addons/material_maker/preview.tscn
index 244312c..f15eefc 100644
--- a/addons/material_maker/preview.tscn
+++ b/addons/material_maker/preview.tscn
@@ -25,6 +25,7 @@ margin_top = 3.0
 margin_right = -3.0
 margin_bottom = 373.0
 rect_min_size = Vector2( 200, 200 )
+mouse_filter = 1
 size_flags_horizontal = 3
 size_flags_vertical = 3
 stretch = true
@@ -37,6 +38,7 @@ world = SubResource( 1 )
 handle_input_locally = false
 render_target_clear_mode = 1
 render_target_update_mode = 3
+physics_object_picking = true
 
 [node name="Preview3d" parent="MaterialPreview" instance=ExtResource( 2 )]
 
diff --git a/addons/material_maker/preview_3d.tscn b/addons/material_maker/preview_3d.tscn
index 46828c3..897f405 100644
--- a/addons/material_maker/preview_3d.tscn
+++ b/addons/material_maker/preview_3d.tscn
@@ -1,19 +1,20 @@
-[gd_scene load_steps=14 format=2]
+[gd_scene load_steps=13 format=2]
 
 [ext_resource path="res://addons/material_maker/preview_objects.tscn" type="PackedScene" id=1]
 [ext_resource path="res://addons/material_maker/environment.gd" type="Script" id=2]
 [ext_resource path="res://addons/material_maker/panoramas/epping_forest_01.hdr" type="Texture" id=3]
-[ext_resource path="res://addons/material_maker/panoramas/moonless_golf.hdr" type="Texture" id=4]
+[ext_resource path="res://addons/material_maker/preview_light.tscn" type="PackedScene" id=4]
+[ext_resource path="res://addons/material_maker/panoramas/moonless_golf.hdr" type="Texture" id=5]
 
-[sub_resource type="PanoramaSky" id=1]
+[sub_resource type="PanoramaSky" id=3]
 
-[sub_resource type="Environment" id=2]
+[sub_resource type="Environment" id=4]
 background_mode = 2
-background_sky = SubResource( 1 )
+background_sky = SubResource( 3 )
 ambient_light_color = Color( 0.992157, 1, 0.709804, 1 )
 ambient_light_energy = 0.3
 
-[sub_resource type="Animation" id=3]
+[sub_resource type="Animation" id=5]
 loop = true
 tracks/0/type = "value"
 tracks/0/path = NodePath("Objects:rotation_degrees")
@@ -28,25 +29,17 @@ tracks/0/keys = {
 "values": [ Vector3( 0, 0, 0 ), Vector3( 0, 360, 0 ) ]
 }
 
-[sub_resource type="PanoramaSky" id=4]
+[sub_resource type="PanoramaSky" id=6]
 resource_local_to_scene = true
 panorama = ExtResource( 3 )
 
-[sub_resource type="Environment" id=5]
+[sub_resource type="Environment" id=7]
 background_mode = 2
-background_sky = SubResource( 4 )
-
-[sub_resource type="SpatialMaterial" id=6]
-flags_unshaded = true
-
-[sub_resource type="SphereMesh" id=7]
-material = SubResource( 6 )
-radius = 0.25
-height = 0.5
+background_sky = SubResource( 6 )
 
 [sub_resource type="PanoramaSky" id=8]
 resource_local_to_scene = true
-panorama = ExtResource( 4 )
+panorama = ExtResource( 5 )
 
 [sub_resource type="Environment" id=9]
 resource_local_to_scene = true
@@ -63,7 +56,7 @@ transform = Transform( 1, 0, 0, 0, 0.766044, 0.642788, 0, -0.642788, 0.766044, 0
 
 [node name="Camera" type="Camera" parent="CameraPivot"]
 transform = Transform( 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 3.5 )
-environment = SubResource( 2 )
+environment = SubResource( 4 )
 current = true
 
 [node name="RemoteTransform" type="RemoteTransform" parent="CameraPivot/Camera"]
@@ -72,48 +65,24 @@ remote_path = NodePath("../../../../../../ProjectsPane/BackgroundPreview/Viewpor
 [node name="ObjectRotate" type="AnimationPlayer" parent="."]
 autoplay = "rotate"
 playback_speed = 0.1
-anims/rotate = SubResource( 3 )
+anims/rotate = SubResource( 5 )
 
 [node name="Environments" type="Spatial" parent="."]
 
 [node name="Epping Forest" type="Spatial" parent="Environments"]
+visible = false
 script = ExtResource( 2 )
-environment = SubResource( 5 )
+environment = SubResource( 7 )
 
-[node name="Light" type="OmniLight" parent="Environments/Epping Forest"]
-transform = Transform( 0.999755, 0.0162074, -0.0150931, 0, 0.681502, 0.731816, 0.0221468, -0.731637, 0.681335, -0.0821358, 3.98251, -2.64581 )
-light_energy = 4.9
-omni_range = 12.9508
-
-[node name="Mesh" type="MeshInstance" parent="Environments/Epping Forest/Light"]
-transform = Transform( 1, 1.11759e-008, -1.30385e-008, -1.86265e-009, 1, -4.17233e-007, 0, 0, 1, 0, 0, 0 )
-cast_shadow = 0
-mesh = SubResource( 7 )
-material/0 = null
+[node name="Light" parent="Environments/Epping Forest" instance=ExtResource( 4 )]
+transform = Transform( 0.999755, 0.0162074, -0.0150931, 0, 0.681502, 0.731816, 0.0221468, -0.731637, 0.681335, 0.0511079, 4.03913, -2.64581 )
 
 [node name="Moonless Golf" type="Spatial" parent="Environments"]
 visible = false
 script = ExtResource( 2 )
 environment = SubResource( 9 )
 
-[node name="Light1" type="OmniLight" parent="Environments/Moonless Golf"]
-transform = Transform( 0.999755, 0.0162074, -0.0150931, 0, 0.681502, 0.731816, 0.0221468, -0.731637, 0.681335, -2.22238, 3.98251, -2.64581 )
-light_energy = 4.9
-omni_range = 12.9508
+[node name="Light1" parent="Environments/Moonless Golf" instance=ExtResource( 4 )]
 
-[node name="Mesh" type="MeshInstance" parent="Environments/Moonless Golf/Light1"]
-transform = Transform( 1, 1.11759e-008, -1.39698e-008, -1.86265e-009, 1, -4.17233e-007, 0, 0, 1, 0, 0, 0 )
-cast_shadow = 0
-mesh = SubResource( 7 )
-material/0 = null
-
-[node name="Light2" type="OmniLight" parent="Environments/Moonless Golf"]
-transform = Transform( 0.999755, 0.0162074, -0.0150931, 0, 0.681502, 0.731816, 0.0221468, -0.731637, 0.681335, 2.34329, 3.98251, -2.64581 )
-light_energy = 4.9
-omni_range = 12.9508
-
-[node name="Mesh" type="MeshInstance" parent="Environments/Moonless Golf/Light2"]
-transform = Transform( 1, 1.11759e-008, -1.39698e-008, -1.86265e-009, 1, -4.17233e-007, 0, 0, 1, 0, 0, 0 )
-cast_shadow = 0
-mesh = SubResource( 7 )
-material/0 = null
+[node name="Light2" parent="Environments/Moonless Golf" instance=ExtResource( 4 )]
+transform = Transform( 0.999755, 0.0162074, -0.0150931, 0, 0.681502, 0.731816, 0.0221468, -0.731637, 0.681335, 2.3608, 3.98251, -2.64581 )
diff --git a/addons/material_maker/preview_light.gd b/addons/material_maker/preview_light.gd
new file mode 100644
index 0000000..5a8a80a
--- /dev/null
+++ b/addons/material_maker/preview_light.gd
@@ -0,0 +1,5 @@
+tool
+extends Area
+
+func _on_Light_input_event(camera, event, click_position, click_normal, shape_idx):
+	print(event)
diff --git a/addons/material_maker/preview_light.tscn b/addons/material_maker/preview_light.tscn
new file mode 100644
index 0000000..dc27caf
--- /dev/null
+++ b/addons/material_maker/preview_light.tscn
@@ -0,0 +1,34 @@
+[gd_scene load_steps=5 format=2]
+
+[ext_resource path="res://addons/material_maker/preview_light.gd" type="Script" id=1]
+
+[sub_resource type="SphereShape" id=3]
+radius = 0.332384
+
+[sub_resource type="SpatialMaterial" id=1]
+flags_unshaded = true
+
+[sub_resource type="SphereMesh" id=2]
+material = SubResource( 1 )
+radius = 0.25
+height = 0.5
+
+[node name="Light" type="Area"]
+transform = Transform( 0.999755, 0.0162074, -0.0150931, 0, 0.681502, 0.731816, 0.0221468, -0.731637, 0.681335, -2.22238, 3.98251, -2.64581 )
+script = ExtResource( 1 )
+
+[node name="CollisionShape" type="CollisionShape" parent="."]
+transform = Transform( 1, 0, 9.31323e-010, -1.86265e-009, 1, 2.98023e-008, 9.31323e-010, 2.98023e-008, 1, 0, 0, 0 )
+shape = SubResource( 3 )
+
+[node name="Light" type="OmniLight" parent="."]
+transform = Transform( 1, -1.86265e-009, 9.31323e-010, -1.86265e-009, 1, 0, 0, 2.98023e-008, 1, 0, 0, 0 )
+light_energy = 4.9
+omni_range = 12.9508
+
+[node name="Mesh" type="MeshInstance" parent="."]
+transform = Transform( 1, 1.11759e-008, -1.21072e-008, -5.58794e-009, 1, -4.17233e-007, 9.31323e-010, 0, 1, 0, 0, 0 )
+cast_shadow = 0
+mesh = SubResource( 2 )
+material/0 = null
+[connection signal="input_event" from="." to="." method="_on_Light_input_event"]
diff --git a/addons/material_maker/preview_world.tres b/addons/material_maker/preview_world.tres
deleted file mode 100644
index 0488b02..0000000
--- a/addons/material_maker/preview_world.tres
+++ /dev/null
@@ -1,3 +0,0 @@
-[gd_resource type="World" format=2]
-
-[resource]
diff --git a/addons/material_maker/renderer.gd b/addons/material_maker/renderer.gd
deleted file mode 100644
index 971e7e4..0000000
--- a/addons/material_maker/renderer.gd
+++ /dev/null
@@ -1,128 +0,0 @@
-tool
-extends Viewport
-
-export(String) var debug_path = null
-var debug_file_index = 0
-
-var render_queue = []
-
-
-func _ready():
-	$ColorRect.material = $ColorRect.material.duplicate(true)
-
-# Save shader to image, create image texture
-
-static func generate_shader(src_code):
-	var code
-	code = "shader_type canvas_item;\n"
-	code += "render_mode blend_disabled;\n"
-	var file = File.new()
-	file.open("res://addons/material_maker/common.shader", File.READ)
-	code += file.get_as_text()
-	code += "\n"
-	if src_code.has("globals"):
-		for g in src_code.globals:
-			code += g
-	var shader_code = src_code.defs
-	shader_code += "void fragment() {\n"
-	shader_code += src_code.code
-	shader_code += "COLOR = "+src_code.rgba+";\n"
-	shader_code += "}\n"
-	#print("GENERATED SHADER:\n"+shader_code)
-	code += shader_code
-	return code
-
-static func generate_combined_shader(red_code, green_code, blue_code):
-	var code
-	code = "shader_type canvas_item;\n"
-	code += "render_mode blend_disabled;\n"
-	var file = File.new()
-	file.open("res://addons/material_maker/common.shader", File.READ)
-	code += file.get_as_text()
-	code += "\n"
-	if red_code.has("globals"):
-		for g in red_code.globals:
-			code += g
-	if green_code.has("globals"):
-		for g in green_code.globals:
-			code += g
-	if blue_code.has("globals"):
-		for g in blue_code.globals:
-			code += g
-	var shader_code = ""
-	shader_code += red_code.defs
-	shader_code += green_code.defs
-	shader_code += blue_code.defs
-	shader_code += "void fragment() {\n"
-	shader_code += red_code.code
-	shader_code += green_code.code
-	shader_code += blue_code.code
-	shader_code += "COLOR = vec4("+red_code.f+", "+green_code.f+", "+blue_code.f+", 1.0);\n"
-	shader_code += "}\n"
-	#print("GENERATED COMBINED SHADER:\n"+shader_code)
-	code += shader_code
-	return code
-
-func setup_material(shader_material, textures, shader_code):
-	for k in textures.keys():
-		shader_material.set_shader_param(k+"_tex", textures[k])
-	shader_material.shader.code = shader_code
-
-func render_shader_to_viewport(shader, textures, render_size, method, args):
-	if debug_path != null and debug_path != "":
-		var f = File.new()
-		f.open(debug_path+str(debug_file_index)+".shader", File.WRITE)
-		f.store_string(shader)
-		f.close()
-		debug_file_index += 1
-	render_queue.append( { shader=shader, textures=textures, size=render_size, method=method, args=args } )
-	if render_queue.size() == 1:
-		while !render_queue.empty():
-			var job = render_queue.front()
-			size = Vector2(job.size, job.size)
-			$ColorRect.rect_position = Vector2(0, 0)
-			$ColorRect.rect_size = Vector2(job.size, job.size)
-			var shader_material = $ColorRect.material
-			shader_material.shader.code = job.shader
-			if job.textures != null:
-				for k in job.textures.keys():
-					shader_material.set_shader_param(k+"_tex", job.textures[k])
-			render_target_update_mode = Viewport.UPDATE_ALWAYS
-			update_worlds()
-			yield(get_tree(), "idle_frame")
-			yield(get_tree(), "idle_frame")
-			render_target_update_mode = Viewport.UPDATE_DISABLED
-			callv(job.method, job.args)
-			render_queue.pop_front()
-
-func render_to_viewport(node, render_size, method, args):
-	render_shader_to_viewport(node.generate_shader(), node.get_textures(), render_size, method, args)
-
-func export_texture(node, filename, render_size = 256):
-	if node == null:
-		return null
-	render_to_viewport(node, render_size, "do_export_texture", [ filename ])
-
-func do_export_texture(filename):
-	var viewport_texture = get_texture()
-	var x = ImageTexture.new()
-	x.create_from_image(viewport_texture.get_data())
-	var viewport_image = x.get_data()
-	var f = File.new()
-	f.open(filename+".raw", File.WRITE)
-	f.store_buffer(viewport_image.get_data())
-	f.close()
-	viewport_image.save_png(filename)
-
-func precalculate_node(node, render_size, target_texture, object, method, args):
-	if node == null:
-		return null
-	render_to_viewport(node, render_size, "do_precalculate_texture", [ object, method, args ])
-
-func precalculate_shader(shader, textures, render_size, target_texture, object, method, args):
-	render_shader_to_viewport(shader, textures, render_size, "do_precalculate_texture", [ target_texture, object, method, args ])
-
-func do_precalculate_texture(target_texture, object, method, args):
-	var viewport_texture = get_texture()
-	target_texture.create_from_image(viewport_texture.get_data())
-	object.callv(method, args)
diff --git a/addons/material_maker/renderer.tscn b/addons/material_maker/renderer.tscn
deleted file mode 100644
index f5f08de..0000000
--- a/addons/material_maker/renderer.tscn
+++ /dev/null
@@ -1,34 +0,0 @@
-[gd_scene load_steps=4 format=2]
-
-[ext_resource path="res://addons/material_maker/renderer.gd" type="Script" id=1]
-
-[sub_resource type="Shader" id=1]
-code = "shader_type canvas_item;
-
-void fragment() {
-	COLOR = vec4(1.0);
-}
-"
-
-[sub_resource type="ShaderMaterial" id=2]
-shader = SubResource( 1 )
-
-[node name="Renderer" type="Viewport"]
-own_world = true
-transparent_bg = true
-msaa = 2
-hdr = false
-render_target_v_flip = true
-render_target_update_mode = 1
-gui_disable_input = true
-script = ExtResource( 1 )
-debug_path = null
-
-[node name="ColorRect" type="ColorRect" parent="."]
-material = SubResource( 2 )
-margin_right = 40.0
-margin_bottom = 40.0
-
-[node name="Timer" type="Timer" parent="."]
-wait_time = 0.1
-one_shot = true