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Add function to generate material node screeenshots #1450

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Add function to generate material node screeenshots #1450

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3bff5d1
Added function to generate material node screeenshots
williamchange Jun 26, 2026
e145dfd
Merge branch 'master' into generate-mat-screenshots
RodZill4 Jun 27, 2026
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5 changes: 4 additions & 1 deletion material_maker/main_window.gd
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Original file line number Diff line number Diff line change
Expand Up @@ -1372,7 +1372,10 @@ func dim_window() -> void:
modulate = Color(0.5, 0.5, 0.5)

func generate_screenshots():
var result = await library.generate_screenshots(get_current_graph_edit())
var graph : MMGraphEdit = get_current_graph_edit()
graph.get_node("node_Material").position_offset = Vector2(-300, 0)
var result : int = await library.generate_node_screenshots(graph)
result += await library.generate_material_screenshots(graph)
print(result)

func generate_graph_screenshot():
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55 changes: 36 additions & 19 deletions material_maker/panels/library/library.gd
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Original file line number Diff line number Diff line change
Expand Up @@ -211,8 +211,39 @@ func get_icon_name(item_name : String) -> String:
func _on_Filter_text_changed(_filter : String) -> void:
update_tree()

func generate_transparent_node_sceenshot(node : GraphElement, save_path : String) -> void:
var csf : float = get_tree().root.content_scale_factor
var image : Image = get_viewport().get_texture().get_image()
image = image.get_region(Rect2(csf*(node.global_position-Vector2(6, 6)) ,csf*(node.size+Vector2(14, 12))))
# Make background transparent
image.convert(Image.FORMAT_RGBA8)
var border_color : Color = image.get_pixel(0, 0)
for y : int in image.get_height():
for x : int in image.get_width():
if image.get_pixel(x, y) != border_color:
break
image.set_pixel(x, y, Color(0, 0, 0, 0))
for x : int in range(image.get_width()-1, 0, -1):
if image.get_pixel(x, y) != border_color:
break
image.set_pixel(x, y, Color(0, 0, 0, 0))
@warning_ignore("narrowing_conversion")
image.resize(image.get_size().x/csf, image.get_size().y/csf, Image.INTERPOLATE_LANCZOS)
image.save_png(save_path)

func generate_material_screenshots(graph_edit : MMGraphEdit) -> int:
# generate sceenshots for material nodes
var material_node : MMGraphNodeGeneric = graph_edit.get_node("node_Material")
for i in mm_loader.get_material_nodes().size():
await get_tree().create_timer(0.05).timeout
material_node._on_menu_id_pressed(i)
print(material_node.generator.model)
generate_transparent_node_sceenshot(material_node,
"res://material_maker/doc/images/node_%s.png" % [material_node.generator.model])
return mm_loader.get_material_nodes().size()

# Should be moved to library manager
func generate_screenshots(graph_edit : GraphEdit, parent_item : TreeItem = null) -> int:
func generate_node_screenshots(graph_edit : GraphEdit, parent_item : TreeItem = null) -> int:
var count : int = 0
if parent_item == null:
parent_item = tree.get_root()
Expand All @@ -224,29 +255,15 @@ func generate_screenshots(graph_edit : GraphEdit, parent_item : TreeItem = null)
if item.get_metadata(0) != null:
var new_nodes = graph_edit.create_nodes(item.get_metadata(0))
await get_tree().create_timer(0.05).timeout
var image = get_viewport().get_texture().get_image()
var csf : float = mm_globals.ui_scale_factor()
image = image.get_region(Rect2(csf*(new_nodes[0].global_position-Vector2(6, 6)),csf*(new_nodes[0].size+Vector2(14, 12))))
# Make background transparent
image.convert(Image.FORMAT_RGBA8)
var border_color : Color = image.get_pixel(0, 0)
for y : int in image.get_height():
for x : int in image.get_width():
if image.get_pixel(x, y) != border_color:
break
image.set_pixel(x, y, Color(0, 0, 0, 0))
for x : int in range(image.get_width()-1, 0, -1):
if image.get_pixel(x, y) != border_color:
break
image.set_pixel(x, y, Color(0, 0, 0, 0))
generate_transparent_node_sceenshot(new_nodes[0],
"res://material_maker/doc/images/node_%s.png" % [get_icon_name(get_item_path(item))])
print(get_icon_name(get_item_path(item)))
image.resize(image.get_size().x/csf, image.get_size().y/csf, Image.INTERPOLATE_LANCZOS)
image.save_png("res://material_maker/doc/images/node_"+get_icon_name(get_item_path(item))+".png")
for n in new_nodes:
graph_edit.remove_node(n)
count += 1
var result = await generate_screenshots(graph_edit, item)
var result = await generate_node_screenshots(graph_edit, item)
count += result

if parent_item == null:
graph_edit.remove_theme_stylebox_override("panel")
return count
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