Improve export node to support $ variables

addons/material_maker/engine/nodes/gen_export.gd

@@ -5,7 +5,6 @@ class_name MMGenExport
 
 # Can be used to export an additional texture
 
-
 var texture = null
 
 # The default texture size as a power-of-two exponent
@@ -39,12 +38,16 @@ func _serialize(data: Dictionary) -> Dictionary:
 	return data
 
 func get_parameter_defs() -> Array:
+	var tooltip := """
+		Filename for the exported texture.
+		$node, $project, $idx and $resolution can be used.
+		"""
 	return [
 			{ name="size", label="Size", type="size", first=4, last=13, default=10 },
 			{ name="format", label="Format", default=0, type="enum", values=[
 				{ name="PNG" }, { name="JPG" }, { name="WEBP" }, { name="EXR" },
 			]},
-			{ name="suffix", label="Suffix", type="string", default="suffix" }
+			{ name="suffix", label="Filename", type="string", default="$project", longdesc=tooltip }
 		]
 
 func get_input_defs() -> Array:
@@ -62,13 +65,29 @@ func get_image_format() -> String:
 			return "exr"
 		_: return "png"
 
+func interpret_file_name(file_name: String, path:="") -> String:
+	var additional_ids := { "$node":"unnamed" }
+
+	if "$node" in file_name:
+		var graph : MMGraphEdit = mm_globals.main_window.get_current_graph_edit()
+		if graph != null:
+			for c in graph.connections:
+				if c.to_node == "node_" + name:
+					var node_title : String = graph.get_node(NodePath(c.from_node)).title
+					additional_ids["$node"] = node_title.to_snake_case()
+					break
+
+	var resolution := str(get_image_size())
+	return mm_globals.interpret_file_name(file_name, path, "."+get_image_format(), additional_ids, resolution)
+
 func export_material(prefix : String, _profile : String, size : int = 0, command_line : bool = false) -> void:
 	if size == 0:
 		size = get_image_size()
 	var source = get_source(0)
 	if source != null:
 		var texture : MMTexture = await source.generator.render_output_to_texture(source.output_index, Vector2i(size, size))
 		if parameters.suffix != "":
-			await texture.save_to_file("%s_%s.%s" % [ prefix, parameters.suffix, get_image_format() ])
+			var filename := interpret_file_name(parameters.suffix, prefix.get_base_dir())
+			await texture.save_to_file(prefix.get_base_dir().path_join(filename))
 		else:
-			await texture.result.save_to_file("%s.%s" % [ prefix, get_image_format() ])
+			await texture.save_to_file("%s.%s" % [ prefix, get_image_format() ])

material_maker/doc/node_miscellaneous_export.rst

@@ -3,15 +3,16 @@ Export node
 
 The **Export** node defines a texture that will be saved together with the
 material textures when exporting the project. This node can also be triggered
-manually via **Quick Export** under material exports.
+manually via **Quick Export** under material exports without exporting a full
+materaial.
 
 .. image:: images/node_miscellaneous_export.png
 	:align: center
 
 Inputs
 ++++++
 
-The **Export** node has an input that will be saved when exporting the project.
+The **Export** node has an input that will be saved when exporting the project or triggered via **Quick Export**.
 
 Outputs
 +++++++
@@ -23,8 +24,8 @@ Parameters
 
 The **Export** node has three parameters:
 
-* the resolution size of the exported file
+* *Resolution* size of the exported file
 
-* the format of the exported file (i.e. PNG, JPG, WebP or EXR)
+* *Format* of the exported file (i.e. PNG, JPG, WebP or EXR)
 
-* the suffix of the file that will be created
+* *Filename* of the created file. $node, $project, $idx and $resolution can be used.

material_maker/nodes/reroute/reroute.tscn

@@ -1,6 +1,6 @@
 [gd_scene load_steps=5 format=3 uid="uid://dj08rlr43tqxj"]
 
-[ext_resource type="Script" path="res://material_maker/nodes/reroute/reroute.gd" id="1"]
+[ext_resource type="Script" uid="uid://bfkmqgx6bd2i4" path="res://material_maker/nodes/reroute/reroute.gd" id="1"]
 
 [sub_resource type="StyleBoxFlat" id="1"]
 corner_radius_top_left = 12
@@ -45,6 +45,7 @@ custom_minimum_size = Vector2(24, 24)
 offset_right = 24.0
 offset_bottom = 24.0
 theme = SubResource("3")
+title = "Reroute"
 slot/0/left_enabled = true
 slot/0/left_type = 42
 slot/0/left_color = Color(1, 1, 1, 1)