More refactoring and added image "generator"

addons/material_maker/engine/gen_base.gd

@@ -2,6 +2,10 @@ tool
 extends Node
 class_name MMGenBase
 
+"""
+Base class for texture generators, that defines their API
+"""
+
 class OutputPort:
 	var generator : MMGenBase = null
 	var output_index : int = 0
@@ -21,7 +25,6 @@ func _ready():
 
 func init_parameters():
 	for p in get_parameter_defs():
-		print(p)
 		if !parameters.has(p.name):
 			if p.has("default"):
 				parameters[p.name] = MMType.deserialize_value(p.default)
@@ -40,6 +43,9 @@ func get_type_name():
 func get_parameter_defs():
 	return []
 
+func set_parameter(n : String, v):
+	parameters[n] = v
+
 func get_input_defs():
 	return []
 

addons/material_maker/engine/gen_buffer.gd

@@ -1,8 +1,11 @@
 tool
-extends MMGenBase
+extends MMGenTexture
 class_name MMGenBuffer
 
-var texture : ImageTexture = ImageTexture.new()
+"""
+Texture generator buffers, that render their input in a specific resolution and provide the result as output.
+This is useful when using generators that sample their inputs several times (such as convolutions) 
+"""
 
 func _ready():
 	if !parameters.has("size"):
@@ -20,9 +23,6 @@ func get_parameter_defs():
 func get_input_defs():
 	return [ { name="in", type="rgba" } ]
 
-func get_output_defs():
-	return [ { rgba="" } ]
-
 func _get_shader_code(uv : String, output_index : int, context : MMGenContext):
 	var source = get_source(0)
 	if source != null:
@@ -34,12 +34,7 @@ func _get_shader_code(uv : String, output_index : int, context : MMGenContext):
 			var image : Image = context.renderer.get_texture().get_data()
 			texture.create_from_image(image)
 			texture.flags = 0
-	var rv = { defs="" }
-	var variant_index = context.get_variant(self, uv)
-	if variant_index == -1:
-		variant_index = context.get_variant(self, uv)
-	var texture_name = name+"_tex"
-	rv.code = "vec4 %s_%d = texture(%s, %s);\n" % [ name, variant_index, texture_name, uv ]
-	rv.rgba = "%s_%d" % [ name, variant_index ]
-	rv.textures = { texture_name:texture }
-	return rv
+	var rv = ._get_shader_code(uv, output_index, context)
+	while rv is GDScriptFunctionState:
+		rv = yield(rv, "completed")
+	return rv

addons/material_maker/engine/gen_image.gd

@@ -0,0 +1,21 @@
+tool
+extends MMGenTexture
+class_name MMGenImage
+
+"""
+Texture generator from image
+"""
+
+func get_type():
+	return "image"
+
+func get_type_name():
+	return "Image"
+
+func get_parameter_defs():
+	return [ { name="image", type="path" } ]
+
+func set_parameter(n : String, v):
+	.set_parameter(n, v)
+	if n == "image":
+		texture.load(v)

addons/material_maker/engine/gen_texture.gd

@@ -0,0 +1,23 @@
+tool
+extends MMGenBase
+class_name MMGenTexture
+
+"""
+Base class for texture generators that provide a texture as output
+"""
+
+var texture : ImageTexture = ImageTexture.new()
+
+func get_output_defs():
+	return [ { rgba="" } ]
+
+func _get_shader_code(uv : String, output_index : int, context : MMGenContext):
+	var rv = { defs="" }
+	var variant_index = context.get_variant(self, uv)
+	if variant_index == -1:
+		variant_index = context.get_variant(self, uv)
+	var texture_name = name+"_tex"
+	rv.code = "vec4 %s_%d = texture(%s, %s);\n" % [ name, variant_index, texture_name, uv ]
+	rv.rgba = "%s_%d" % [ name, variant_index ]
+	rv.textures = { texture_name:texture }
+	return rv

addons/material_maker/engine/loader.gd

@@ -40,6 +40,8 @@ func create_gen(data) -> MMGenBase:
 			generator = MMGenMaterial.new()
 		elif data.type == "buffer":
 			generator = MMGenBuffer.new()
+		elif data.type == "image":
+			generator = MMGenImage.new()
 		else:
 			var file = File.new()
 			if file.open("res://addons/material_maker/library/"+data.type+".mml", File.READ) == OK:

addons/material_maker/graph_edit.tscn

@@ -7,7 +7,6 @@ self_modulate = Color( 1, 1, 1, 0 )
 anchor_right = 1.0
 anchor_bottom = 1.0
 right_disconnects = true
-scroll_offset = Vector2( -325, -250 )
 use_snap = false
 script = ExtResource( 1 )
 

addons/material_maker/nodes/generic.gd

@@ -4,18 +4,13 @@ var generator = null setget set_generator
 
 var controls = []
 
-var uses_seed : bool = false
-
 # Called when the node enters the scene tree for the first time.
 func _ready():
 	pass # Replace with function body.
 
 func set_generator(g):
 	generator = g
-	if g.get("shader_model") != null:
-		update_node(g.shader_model)
-	else:
-		update_node({})
+	update_node()
 
 func initialize_properties():
 	for o in controls:
@@ -69,9 +64,7 @@ func _on_gradient_changed(new_gradient, variable):
 	generator.parameters[variable] = new_gradient
 	update_shaders()
 
-func update_node(data):
-	if typeof(data) != TYPE_DICTIONARY:
-		return
+func update_node():
 	# Clean node
 	var custom_node_buttons = null
 	for c in get_children():
@@ -82,9 +75,6 @@ func update_node(data):
 			custom_node_buttons = c
 	# Rebuild node
 	title = generator.get_type_name()
-	uses_seed = false
-	if data.has("instance") and data.instance.find("$(seed)"):
-		uses_seed = true
 	# Parameters
 	controls = []
 	var sizer = null

addons/material_maker/nodes/image.gd

@@ -0,0 +1,30 @@
+tool
+extends "res://addons/material_maker/node_base.gd"
+
+var generator = null
+
+func _ready():
+	set_slot(0, false, 0, Color(0.5, 0.5, 1), true, 0, Color(0.5, 0.5, 1))
+
+func set_texture(path):
+	if path == null:
+		return
+	if generator != null:
+		generator.set_parameter("image", path)
+	$TextureButton.texture_normal = generator.texture
+
+func get_textures():
+	var list = {}
+	list[name] = $TextureButton.texture_normal
+	return list
+
+func _on_TextureButton_pressed():
+	var dialog = FileDialog.new()
+	add_child(dialog)
+	dialog.rect_min_size = Vector2(500, 500)
+	dialog.access = FileDialog.ACCESS_FILESYSTEM
+	dialog.mode = FileDialog.MODE_OPEN_FILE
+	dialog.add_filter("*.png;PNG image")
+	dialog.add_filter("*.jpg;JPG image")
+	dialog.connect("file_selected", self, "set_texture")
+	dialog.popup_centered()

addons/material_maker/nodes/image.tscn

@@ -1,6 +1,6 @@
 [gd_scene load_steps=4 format=2]
 
-[ext_resource path="res://addons/material_maker/nodes/image/image.gd" type="Script" id=1]
+[ext_resource path="res://addons/material_maker/nodes/image.gd" type="Script" id=1]
 [ext_resource path="res://addons/material_maker/nodes/image/godot_logo.png" type="Texture" id=2]
 
 [sub_resource type="Theme" id=1]
@@ -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( 0.5, 0.5, 1, 1 )
+slot/0/right_color = Color( 0, 1, 0, 0.501961 )
 script = ExtResource( 1 )
 
 [node name="TextureButton" type="TextureButton" parent="."]
@@ -33,5 +33,4 @@ rect_clip_content = true
 texture_normal = ExtResource( 2 )
 expand = true
 stretch_mode = 5
-
 [connection signal="pressed" from="TextureButton" to="." method="_on_TextureButton_pressed"]

addons/material_maker/nodes/image/image.gd

@@ -1,53 +0,0 @@
-tool
-extends "res://addons/material_maker/node_base.gd"
-
-var file_path = null
-
-func _ready():
-	set_slot(0, false, 0, Color(0.5, 0.5, 1), true, 0, Color(0.5, 0.5, 1))
-
-func set_texture(path):
-	file_path = path
-	var texture = ImageTexture.new()
-	if path != null:
-		texture.load(path)
-	$TextureButton.texture_normal = texture
-	update_shaders()
-
-func get_textures():
-	var list = {}
-	list[name] = $TextureButton.texture_normal
-	return list
-
-func _get_shader_code(uv, slot = 0):
-	var rv = { defs="", code="" }
-	if generated_variants.empty():
-		rv.defs = "uniform sampler2D %s_tex;\n" % [ name ]
-	var variant_index = generated_variants.find(uv)
-	if variant_index == -1:
-		variant_index = generated_variants.size()
-		generated_variants.append(uv)
-		rv.code = "vec4 %s_%d_rgba = texture(%s_tex, %s);\n" % [ name, variant_index, name, uv ]
-	rv.rgba = "%s_%d_rgba" % [ name, variant_index ]
-	return rv
-
-func _on_TextureButton_pressed():
-	var dialog = FileDialog.new()
-	add_child(dialog)
-	dialog.rect_min_size = Vector2(500, 500)
-	dialog.access = FileDialog.ACCESS_FILESYSTEM
-	dialog.mode = FileDialog.MODE_OPEN_FILE
-	dialog.add_filter("*.png;PNG image")
-	dialog.add_filter("*.jpg;JPG image")
-	dialog.connect("file_selected", self, "set_texture")
-	dialog.popup_centered()
-
-func serialize():
-	var data = .serialize()
-	data.file_path = file_path
-	return data
-
-func deserialize(data):
-	if data.has("file_path"):
-		set_texture(data.file_path)
-	.deserialize(data)

addons/material_maker/nodes/switch/switch.tscn

@@ -2,34 +2,17 @@
 
 [ext_resource path="res://addons/material_maker/nodes/switch/switch.gd" type="Script" id=1]
 
-
 [sub_resource type="Theme" id=1]
 
-
-[node name="Switch" type="GraphNode" index="0"]
-
-anchor_left = 0.0
-anchor_top = 0.0
-anchor_right = 0.0
-anchor_bottom = 0.0
+[node name="Switch" type="GraphNode"]
 margin_left = 1.0
 margin_top = 1.0
-margin_right = 87.0
-margin_bottom = 89.0
-rect_pivot_offset = Vector2( 0, 0 )
-rect_clip_content = false
+margin_right = 100.0
+margin_bottom = 110.0
 mouse_filter = 1
-mouse_default_cursor_shape = 0
-size_flags_horizontal = 1
-size_flags_vertical = 1
 theme = SubResource( 1 )
 title = "Switch"
-offset = Vector2( 0, 0 )
 show_close = true
-resizable = false
-selected = false
-comment = false
-overlay = 0
 slot/0/left_enabled = false
 slot/0/left_type = 0
 slot/0/left_color = Color( 0.498039, 0.498039, 1, 1 )
@@ -61,190 +44,64 @@ slot/4/right_enabled = false
 slot/4/right_type = 0
 slot/4/right_color = Color( 1, 0, 0, 1 )
 script = ExtResource( 1 )
-_sections_unfolded = [ "Theme", "slot", "slot/0", "slot/1", "slot/2", "slot/3", "slot/4" ]
 
-[node name="source" type="OptionButton" parent="." index="0"]
-
-anchor_left = 0.0
-anchor_top = 0.0
-anchor_right = 0.0
-anchor_bottom = 0.0
+[node name="source" type="OptionButton" parent="."]
 margin_left = 16.0
 margin_top = 24.0
-margin_right = 70.0
+margin_right = 83.0
 margin_bottom = 44.0
-rect_pivot_offset = Vector2( 0, 0 )
-rect_clip_content = false
-focus_mode = 2
-mouse_filter = 0
-mouse_default_cursor_shape = 0
-size_flags_horizontal = 1
-size_flags_vertical = 1
-toggle_mode = false
-action_mode = 0
-enabled_focus_mode = 2
-shortcut = null
-group = null
 text = "1"
-flat = false
-align = 0
 items = [ "1", null, false, 0, null, "2", null, false, 1, null ]
 selected = 0
 
-[node name="Label1" type="Label" parent="." index="1"]
-
-anchor_left = 0.0
-anchor_top = 0.0
-anchor_right = 0.0
-anchor_bottom = 0.0
+[node name="Label1" type="Label" parent="."]
 margin_left = 16.0
 margin_top = 44.0
-margin_right = 70.0
+margin_right = 83.0
 margin_bottom = 58.0
-rect_pivot_offset = Vector2( 0, 0 )
-rect_clip_content = false
-mouse_filter = 2
-mouse_default_cursor_shape = 0
-size_flags_horizontal = 1
-size_flags_vertical = 4
 text = "A1"
-percent_visible = 1.0
-lines_skipped = 0
-max_lines_visible = -1
 
-[node name="HBoxContainer1" type="HBoxContainer" parent="." index="2"]
-
-anchor_left = 0.0
-anchor_top = 0.0
-anchor_right = 0.0
-anchor_bottom = 0.0
+[node name="HBoxContainer1" type="HBoxContainer" parent="."]
 margin_left = 16.0
 margin_top = 59.0
-margin_right = 70.0
+margin_right = 83.0
 margin_bottom = 73.0
-rect_pivot_offset = Vector2( 0, 0 )
-rect_clip_content = false
-mouse_filter = 1
-mouse_default_cursor_shape = 0
-size_flags_horizontal = 1
-size_flags_vertical = 1
-alignment = 0
 
-[node name="Label1" type="Label" parent="HBoxContainer1" index="0"]
-
-anchor_left = 0.0
-anchor_top = 0.0
-anchor_right = 0.0
-anchor_bottom = 0.0
-margin_right = 41.0
-margin_bottom = 14.0
-rect_pivot_offset = Vector2( 0, 0 )
-rect_clip_content = false
-mouse_filter = 2
-mouse_default_cursor_shape = 0
-size_flags_horizontal = 3
-size_flags_vertical = 4
-text = "B1"
-percent_visible = 1.0
-lines_skipped = 0
-max_lines_visible = -1
-
-[node name="Label2" type="Label" parent="HBoxContainer1" index="1"]
-
-anchor_left = 0.0
-anchor_top = 0.0
-anchor_right = 0.0
-anchor_bottom = 0.0
-margin_left = 45.0
+[node name="Label1" type="Label" parent="HBoxContainer1"]
 margin_right = 54.0
 margin_bottom = 14.0
-rect_pivot_offset = Vector2( 0, 0 )
-rect_clip_content = false
-mouse_filter = 2
-mouse_default_cursor_shape = 0
+size_flags_horizontal = 3
+text = "B1"
+
+[node name="Label2" type="Label" parent="HBoxContainer1"]
+margin_left = 58.0
+margin_right = 67.0
+margin_bottom = 14.0
 size_flags_horizontal = 9
-size_flags_vertical = 4
 text = "A"
-percent_visible = 1.0
-lines_skipped = 0
-max_lines_visible = -1
 
-[node name="HBoxContainer2" type="HBoxContainer" parent="." index="3"]
-
-anchor_left = 0.0
-anchor_top = 0.0
-anchor_right = 0.0
-anchor_bottom = 0.0
+[node name="HBoxContainer2" type="HBoxContainer" parent="."]
 margin_left = 16.0
 margin_top = 74.0
-margin_right = 70.0
+margin_right = 83.0
 margin_bottom = 88.0
-rect_pivot_offset = Vector2( 0, 0 )
-rect_clip_content = false
-mouse_filter = 1
-mouse_default_cursor_shape = 0
-size_flags_horizontal = 1
-size_flags_vertical = 1
-alignment = 0
 
-[node name="Label1" type="Label" parent="HBoxContainer2" index="0"]
-
-anchor_left = 0.0
-anchor_top = 0.0
-anchor_right = 0.0
-anchor_bottom = 0.0
-margin_right = 41.0
-margin_bottom = 14.0
-rect_pivot_offset = Vector2( 0, 0 )
-rect_clip_content = false
-mouse_filter = 2
-mouse_default_cursor_shape = 0
-size_flags_horizontal = 3
-size_flags_vertical = 4
-text = "A2"
-percent_visible = 1.0
-lines_skipped = 0
-max_lines_visible = -1
-
-[node name="Label2" type="Label" parent="HBoxContainer2" index="1"]
-
-anchor_left = 0.0
-anchor_top = 0.0
-anchor_right = 0.0
-anchor_bottom = 0.0
-margin_left = 45.0
+[node name="Label1" type="Label" parent="HBoxContainer2"]
 margin_right = 54.0
 margin_bottom = 14.0
-rect_pivot_offset = Vector2( 0, 0 )
-rect_clip_content = false
-mouse_filter = 2
-mouse_default_cursor_shape = 0
+size_flags_horizontal = 3
+text = "A2"
+
+[node name="Label2" type="Label" parent="HBoxContainer2"]
+margin_left = 58.0
+margin_right = 67.0
+margin_bottom = 14.0
 size_flags_horizontal = 9
-size_flags_vertical = 4
 text = "B"
-percent_visible = 1.0
-lines_skipped = 0
-max_lines_visible = -1
 
-[node name="Label2" type="Label" parent="." index="4"]
-
-anchor_left = 0.0
-anchor_top = 0.0
-anchor_right = 0.0
-anchor_bottom = 0.0
+[node name="Label2" type="Label" parent="."]
 margin_left = 16.0
 margin_top = 89.0
-margin_right = 70.0
+margin_right = 83.0
 margin_bottom = 103.0
-rect_pivot_offset = Vector2( 0, 0 )
-rect_clip_content = false
-mouse_filter = 2
-mouse_default_cursor_shape = 0
-size_flags_horizontal = 1
-size_flags_vertical = 4
 text = "B2"
-percent_visible = 1.0
-lines_skipped = 0
-max_lines_visible = -1
-
-

project.godot

@@ -14,7 +14,7 @@ _global_script_classes=[ {
 "language": "GDScript",
 "path": "res://addons/material_maker/engine/gen_base.gd"
 }, {
-"base": "MMGenBase",
+"base": "MMGenTexture",
 "class": "MMGenBuffer",
 "language": "GDScript",
 "path": "res://addons/material_maker/engine/gen_buffer.gd"
@@ -34,6 +34,11 @@ _global_script_classes=[ {
 "language": "GDScript",
 "path": "res://addons/material_maker/engine/gen_graph.gd"
 }, {
+"base": "MMGenTexture",
+"class": "MMGenImage",
+"language": "GDScript",
+"path": "res://addons/material_maker/engine/gen_image.gd"
+}, {
 "base": "Object",
 "class": "MMGenLoader",
 "language": "GDScript",
@@ -54,6 +59,11 @@ _global_script_classes=[ {
 "language": "GDScript",
 "path": "res://addons/material_maker/engine/gen_shader.gd"
 }, {
+"base": "MMGenBase",
+"class": "MMGenTexture",
+"language": "GDScript",
+"path": "res://addons/material_maker/engine/gen_texture.gd"
+}, {
 "base": "Object",
 "class": "MMGradient",
 "language": "GDScript",
@@ -70,10 +80,12 @@ _global_script_class_icons={
 "MMGenContext": "",
 "MMGenConvolution": "",
 "MMGenGraph": "",
+"MMGenImage": "",
 "MMGenLoader": "",
 "MMGenMaterial": "",
 "MMGenRenderer": "",
 "MMGenShader": "",
+"MMGenTexture": "",
 "MMGradient": "",
 "MMType": ""
 }