Fixed 3d preview and added warp generator

addons/material_maker/engine/gen_material.gd

@@ -33,7 +33,7 @@ func _ready():
 	if Engine.editor_hint:
 		texture_list = ADDON_TEXTURE_LIST
 	for t in texture_list:
-		generated_textures[t.texture] = { shader=null, source=null, texture=null }
+		generated_textures[t.texture] = null
 	material = SpatialMaterial.new()
 
 func generate_material(renderer : MMGenRenderer):
@@ -42,14 +42,25 @@ func generate_material(renderer : MMGenRenderer):
 		var status = source.generator.render(source.output_index, renderer, 512)
 		while status is GDScriptFunctionState:
 			status = yield(status, "completed")
-		print("Render status: "+str(status))
 		renderer.get_texture().get_data().save_png("res://test.png")
 		material.albedo_texture = load("res://test.png")
 	return material
 
-func initialize(data: Dictionary):
+func render_textures(renderer : MMGenRenderer):
-	if data.has("name"):
+	for t in texture_list:
-		name = data.name
+		var source = get_source(t.port)
+		var texture = null
+		if source != null:
+			var status = source.generator.render(source.output_index, renderer, 512)
+			while status is GDScriptFunctionState:
+				status = yield(status, "completed")
+			texture = ImageTexture.new()
+			texture.create_from_image(renderer.get_texture().get_data())
+		generated_textures[t.texture] = texture
+
+func update_materials(material_list):
+	for m in material_list:
+		update_spatial_material(m)
 
 func get_generated_texture(slot, file_prefix = null):
 	if file_prefix != null:
@@ -59,14 +70,14 @@ func get_generated_texture(slot, file_prefix = null):
 		else:
 			return null
 	else:
-		return generated_textures[slot].texture
+		return generated_textures[slot]
 
 func update_spatial_material(m, file_prefix = null):
 	var texture
-	m.albedo_color = parameters.albedo_color
+	m.albedo_color = Color(1, 1, 1)#parameters.albedo_color
 	m.albedo_texture = get_generated_texture("albedo", file_prefix)
-	m.metallic = parameters.metallic
+	m.metallic = 1#parameters.metallic
-	m.roughness = parameters.roughness
+	m.roughness = 1#parameters.roughness
 	if Engine.editor_hint:
 		texture = get_generated_texture("mrao", file_prefix)
 		m.metallic_texture = texture 
@@ -79,7 +90,7 @@ func update_spatial_material(m, file_prefix = null):
 	texture = get_generated_texture("emission", file_prefix)
 	if texture != null:
 		m.emission_enabled = true
-		m.emission_energy = parameters.emission_energy
+		#m.emission_energy = parameters.emission_energy
 		m.emission_texture = texture
 	else:
 		m.emission_enabled = false
@@ -92,7 +103,7 @@ func update_spatial_material(m, file_prefix = null):
 	if Engine.editor_hint:
 		if (generated_textures.mrao.mask & (1 << 2)) != 0:
 			m.ao_enabled = true
-			m.ao_light_affect = parameters.ao_light_affect
+			#m.ao_light_affect = parameters.ao_light_affect
 			m.ao_texture = m.metallic_texture
 			m.ao_texture_channel = SpatialMaterial.TEXTURE_CHANNEL_BLUE
 		else:
@@ -101,14 +112,14 @@ func update_spatial_material(m, file_prefix = null):
 		texture = get_generated_texture("ambient_occlusion", file_prefix)
 		if texture != null:
 			m.ao_enabled = true
-			m.ao_light_affect = parameters.ao_light_affect
+			#m.ao_light_affect = parameters.ao_light_affect
 			m.ao_texture = texture
 		else:
 			m.ao_enabled = false
 	texture = get_generated_texture("depth_map", file_prefix)
 	if texture != null:
 		m.depth_enabled = true
-		m.depth_scale = parameters.depth_scale
+		#m.depth_scale = parameters.depth_scale
 		m.depth_texture = texture
 	else:
 		m.depth_enabled = false

addons/material_maker/main_window.gd

@@ -312,9 +312,12 @@ func _on_LoadRecent_id_pressed(id):
 # Preview
 
 func update_preview():
-	var material_node = $VBoxContainer/HBoxContainer/Projects.get_current_tab_control().get_node("Material")
+	var material_node = $VBoxContainer/HBoxContainer/Projects.get_current_tab_control().get_node("node_Material")
 	if material_node != null:
-		material_node.update_materials($VBoxContainer/HBoxContainer/VBoxContainer/Preview.get_materials())
+		var status = material_node.generator.render_textures(renderer)
+		while status is GDScriptFunctionState:
+			status = yield(status, "completed")
+		material_node.generator.update_materials($VBoxContainer/HBoxContainer/VBoxContainer/Preview.get_materials())
 	update_preview_2d()
 
 func update_preview_2d(node = null):

addons/material_maker/nodes/material.tscn

@@ -4,27 +4,12 @@
 
 [sub_resource type="Theme" id=1]
 
-[node name="Material" type="GraphNode" index="0"]
+[node name="Material" type="GraphNode"]
-anchor_left = 0.0
-anchor_top = 0.0
-anchor_right = 0.0
-anchor_bottom = 0.0
 margin_right = 230.0
 margin_bottom = 199.0
-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
 theme = SubResource( 1 )
 title = "Material"
-offset = Vector2( 0, 0 )
-show_close = false
-resizable = false
-selected = false
-comment = false
-overlay = 0
 slot/0/left_enabled = false
 slot/0/left_type = 0
 slot/0/left_color = Color( 0.411765, 1, 0.388235, 0.352941 )
@@ -74,478 +59,165 @@ slot/7/right_enabled = false
 slot/7/right_type = 0
 slot/7/right_color = Color( 0.494118, 0.494118, 1, 1 )
 script = ExtResource( 1 )
-_sections_unfolded = [ "Theme", "slot", "slot/0", "slot/1", "slot/2", "slot/5", "slot/7" ]
 
-[node name="resolution" type="OptionButton" parent="." index="0"]
+[node name="resolution" type="OptionButton" parent="."]
-anchor_left = 0.0
-anchor_top = 0.0
-anchor_right = 0.0
-anchor_bottom = 0.0
 margin_left = 16.0
 margin_top = 24.0
 margin_right = 214.0
 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 = "512x512"
-flat = false
-align = 0
 items = [ "256x256", null, false, 0, null, "512x512", null, false, 1, null, "1024x1024", null, false, 2, null, "2048x2048", null, false, -1, null ]
 selected = 1
 
-[node name="Albedo" type="HBoxContainer" parent="." index="1"]
+[node name="Albedo" type="HBoxContainer" parent="."]
-anchor_left = 0.0
-anchor_top = 0.0
-anchor_right = 0.0
-anchor_bottom = 0.0
 margin_left = 16.0
 margin_top = 44.0
 margin_right = 214.0
 margin_bottom = 64.0
-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="Label" type="Label" parent="Albedo" index="0"]
+[node name="Label" type="Label" parent="Albedo"]
-anchor_left = 0.0
-anchor_top = 0.0
-anchor_right = 0.0
-anchor_bottom = 0.0
 margin_top = 3.0
 margin_right = 114.0
 margin_bottom = 17.0
-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 = "Albedo"
-percent_visible = 1.0
-lines_skipped = 0
-max_lines_visible = -1
-_sections_unfolded = [ "Size Flags" ]
 
-[node name="albedo_color" type="ColorPickerButton" parent="Albedo" index="1"]
+[node name="albedo_color" type="ColorPickerButton" parent="Albedo"]
-anchor_left = 0.0
-anchor_top = 0.0
-anchor_right = 0.0
-anchor_bottom = 0.0
 margin_left = 118.0
 margin_right = 198.0
 margin_bottom = 20.0
 rect_min_size = Vector2( 80, 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
-enabled_focus_mode = 2
-shortcut = null
-group = null
-flat = false
-align = 1
 color = Color( 1, 1, 1, 1 )
 edit_alpha = false
-_sections_unfolded = [ "Rect", "Size Flags" ]
 
-[node name="Metallic" type="HBoxContainer" parent="." index="2"]
+[node name="Metallic" type="HBoxContainer" parent="."]
 editor/display_folded = true
-anchor_left = 0.0
-anchor_top = 0.0
-anchor_right = 0.0
-anchor_bottom = 0.0
 margin_left = 16.0
 margin_top = 65.0
 margin_right = 214.0
 margin_bottom = 89.0
-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="Label" type="Label" parent="Metallic" index="0"]
+[node name="Label" type="Label" parent="Metallic"]
-anchor_left = 0.0
-anchor_top = 0.0
-anchor_right = 0.0
-anchor_bottom = 0.0
 margin_top = 5.0
 margin_right = 120.0
 margin_bottom = 19.0
-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 = "Metallic"
-percent_visible = 1.0
-lines_skipped = 0
-max_lines_visible = -1
-_sections_unfolded = [ "Size Flags" ]
 
-[node name="metallic" type="SpinBox" parent="Metallic" index="1"]
+[node name="metallic" type="SpinBox" parent="Metallic"]
-anchor_left = 0.0
-anchor_top = 0.0
-anchor_right = 0.0
-anchor_bottom = 0.0
 margin_left = 124.0
 margin_right = 198.0
 margin_bottom = 24.0
-rect_pivot_offset = Vector2( 0, 0 )
-rect_clip_content = false
-mouse_filter = 0
-mouse_default_cursor_shape = 0
-size_flags_horizontal = 1
-size_flags_vertical = 1
-min_value = 0.0
 max_value = 1.0
 step = 0.05
-page = 0.0
 value = 1.0
-exp_edit = false
-rounded = false
-editable = true
-prefix = ""
-suffix = ""
-_sections_unfolded = [ "Rect" ]
 
-[node name="Roughness" type="HBoxContainer" parent="." index="3"]
+[node name="Roughness" type="HBoxContainer" parent="."]
 editor/display_folded = true
-anchor_left = 0.0
-anchor_top = 0.0
-anchor_right = 0.0
-anchor_bottom = 0.0
 margin_left = 16.0
 margin_top = 90.0
 margin_right = 214.0
 margin_bottom = 114.0
-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="Label" type="Label" parent="Roughness" index="0"]
+[node name="Label" type="Label" parent="Roughness"]
-anchor_left = 0.0
-anchor_top = 0.0
-anchor_right = 0.0
-anchor_bottom = 0.0
 margin_top = 5.0
 margin_right = 120.0
 margin_bottom = 19.0
-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 = "Roughness"
-percent_visible = 1.0
-lines_skipped = 0
-max_lines_visible = -1
-_sections_unfolded = [ "Size Flags" ]
 
-[node name="roughness" type="SpinBox" parent="Roughness" index="1"]
+[node name="roughness" type="SpinBox" parent="Roughness"]
-anchor_left = 0.0
-anchor_top = 0.0
-anchor_right = 0.0
-anchor_bottom = 0.0
 margin_left = 124.0
 margin_right = 198.0
 margin_bottom = 24.0
-rect_pivot_offset = Vector2( 0, 0 )
-rect_clip_content = false
-mouse_filter = 0
-mouse_default_cursor_shape = 0
-size_flags_horizontal = 1
-size_flags_vertical = 1
-min_value = 0.0
 max_value = 1.0
 step = 0.05
-page = 0.0
 value = 1.0
-exp_edit = false
-rounded = false
-editable = true
-prefix = ""
-suffix = ""
-_sections_unfolded = [ "Rect" ]
 
-[node name="Emission" type="HBoxContainer" parent="." index="4"]
+[node name="Emission" type="HBoxContainer" parent="."]
 editor/display_folded = true
-anchor_left = 0.0
-anchor_top = 0.0
-anchor_right = 0.0
-anchor_bottom = 0.0
 margin_left = 16.0
 margin_top = 115.0
 margin_right = 214.0
 margin_bottom = 139.0
-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="Label" type="Label" parent="Emission" index="0"]
+[node name="Label" type="Label" parent="Emission"]
-anchor_left = 0.0
-anchor_top = 0.0
-anchor_right = 0.0
-anchor_bottom = 0.0
 margin_top = 5.0
 margin_right = 120.0
 margin_bottom = 19.0
-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 = "Emission"
-percent_visible = 1.0
-lines_skipped = 0
-max_lines_visible = -1
-_sections_unfolded = [ "Size Flags" ]
 
-[node name="emission_energy" type="SpinBox" parent="Emission" index="1"]
+[node name="emission_energy" type="SpinBox" parent="Emission"]
-anchor_left = 0.0
-anchor_top = 0.0
-anchor_right = 0.0
-anchor_bottom = 0.0
 margin_left = 124.0
 margin_right = 198.0
 margin_bottom = 24.0
-rect_pivot_offset = Vector2( 0, 0 )
-rect_clip_content = false
-mouse_filter = 0
-mouse_default_cursor_shape = 0
-size_flags_horizontal = 1
-size_flags_vertical = 1
-min_value = 0.0
 max_value = 5.0
 step = 0.05
-page = 0.0
 value = 1.0
-exp_edit = false
-rounded = false
-editable = true
-prefix = ""
-suffix = ""
-_sections_unfolded = [ "Rect" ]
 
-[node name="NormalMap" type="HBoxContainer" parent="." index="5"]
+[node name="NormalMap" type="HBoxContainer" parent="."]
 editor/display_folded = true
-anchor_left = 0.0
-anchor_top = 0.0
-anchor_right = 0.0
-anchor_bottom = 0.0
 margin_left = 16.0
 margin_top = 140.0
 margin_right = 214.0
 margin_bottom = 164.0
-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="Label" type="Label" parent="NormalMap" index="0"]
+[node name="Label" type="Label" parent="NormalMap"]
-anchor_left = 0.0
-anchor_top = 0.0
-anchor_right = 0.0
-anchor_bottom = 0.0
 margin_top = 5.0
 margin_right = 120.0
 margin_bottom = 19.0
-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 = "Normal map"
-percent_visible = 1.0
-lines_skipped = 0
-max_lines_visible = -1
-_sections_unfolded = [ "Size Flags" ]
 
-[node name="normal_scale" type="SpinBox" parent="NormalMap" index="1"]
+[node name="normal_scale" type="SpinBox" parent="NormalMap"]
-anchor_left = 0.0
-anchor_top = 0.0
-anchor_right = 0.0
-anchor_bottom = 0.0
 margin_left = 124.0
 margin_right = 198.0
 margin_bottom = 24.0
-rect_pivot_offset = Vector2( 0, 0 )
-rect_clip_content = false
-mouse_filter = 0
-mouse_default_cursor_shape = 0
-size_flags_horizontal = 1
-size_flags_vertical = 1
-min_value = 0.0
 max_value = 5.0
 step = 0.05
-page = 0.0
 value = 1.0
-exp_edit = false
-rounded = false
-editable = true
-prefix = ""
-suffix = ""
-_sections_unfolded = [ "Rect" ]
 
-[node name="AmbientOcclusion" type="HBoxContainer" parent="." index="6"]
+[node name="AmbientOcclusion" type="HBoxContainer" parent="."]
 editor/display_folded = true
-anchor_left = 0.0
-anchor_top = 0.0
-anchor_right = 0.0
-anchor_bottom = 0.0
 margin_left = 16.0
 margin_top = 165.0
 margin_right = 214.0
 margin_bottom = 189.0
-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="Label" type="Label" parent="AmbientOcclusion" index="0"]
+[node name="Label" type="Label" parent="AmbientOcclusion"]
-anchor_left = 0.0
-anchor_top = 0.0
-anchor_right = 0.0
-anchor_bottom = 0.0
 margin_top = 5.0
 margin_right = 120.0
 margin_bottom = 19.0
-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 = "Ambient occlusion"
-percent_visible = 1.0
-lines_skipped = 0
-max_lines_visible = -1
-_sections_unfolded = [ "Size Flags" ]
 
-[node name="ao_light_affect" type="SpinBox" parent="AmbientOcclusion" index="1"]
+[node name="ao_light_affect" type="SpinBox" parent="AmbientOcclusion"]
-anchor_left = 0.0
-anchor_top = 0.0
-anchor_right = 0.0
-anchor_bottom = 0.0
 margin_left = 124.0
 margin_right = 198.0
 margin_bottom = 24.0
-rect_pivot_offset = Vector2( 0, 0 )
-rect_clip_content = false
-mouse_filter = 0
-mouse_default_cursor_shape = 0
-size_flags_horizontal = 1
-size_flags_vertical = 1
-min_value = 0.0
 max_value = 5.0
 step = 0.05
-page = 0.0
 value = 1.0
-exp_edit = false
-rounded = false
-editable = true
-prefix = ""
-suffix = ""
-_sections_unfolded = [ "Rect" ]
 
-[node name="DepthMap" type="HBoxContainer" parent="." index="7"]
+[node name="DepthMap" type="HBoxContainer" parent="."]
 editor/display_folded = true
-anchor_left = 0.0
-anchor_top = 0.0
-anchor_right = 0.0
-anchor_bottom = 0.0
 margin_left = 16.0
 margin_top = 190.0
 margin_right = 214.0
 margin_bottom = 214.0
-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="Label" type="Label" parent="DepthMap" index="0"]
+[node name="Label" type="Label" parent="DepthMap"]
-anchor_left = 0.0
-anchor_top = 0.0
-anchor_right = 0.0
-anchor_bottom = 0.0
 margin_top = 5.0
 margin_right = 120.0
 margin_bottom = 19.0
-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 = "Depth map"
-percent_visible = 1.0
-lines_skipped = 0
-max_lines_visible = -1
-_sections_unfolded = [ "Size Flags" ]
 
-[node name="depth_scale" type="SpinBox" parent="DepthMap" index="1"]
+[node name="depth_scale" type="SpinBox" parent="DepthMap"]
-anchor_left = 0.0
-anchor_top = 0.0
-anchor_right = 0.0
-anchor_bottom = 0.0
 margin_left = 124.0
 margin_right = 198.0
 margin_bottom = 24.0
-rect_pivot_offset = Vector2( 0, 0 )
-rect_clip_content = false
-mouse_filter = 0
-mouse_default_cursor_shape = 0
-size_flags_horizontal = 1
-size_flags_vertical = 1
-min_value = 0.0
 max_value = 5.0
 step = 0.05
-page = 0.0
 value = 1.0
-exp_edit = false
-rounded = false
-editable = true
-prefix = ""
-suffix = ""
-_sections_unfolded = [ "Rect" ]

addons/material_maker/nodes/transform/transform.tscn

@@ -1,8 +1,14 @@
-[gd_scene load_steps=3 format=2]
+[gd_scene load_steps=6 format=2]
 
 [ext_resource path="res://addons/material_maker/nodes/transform/transform.gd" type="Script" id=1]
 
-[sub_resource type="Theme" id=1]
+[sub_resource type="StyleBoxEmpty" id=1]
+
+[sub_resource type="StyleBoxEmpty" id=2]
+
+[sub_resource type="StyleBoxEmpty" id=3]
+
+[sub_resource type="StyleBoxEmpty" id=4]
 
 [node name="Transform" type="GraphNode"]
 margin_left = 1.0
@@ -10,7 +16,10 @@ margin_top = 1.0
 margin_right = 185.0
 margin_bottom = 179.0
 mouse_filter = 1
-theme = SubResource( 1 )
+custom_styles/position = SubResource( 1 )
+custom_styles/defaultfocus = SubResource( 2 )
+custom_styles/breakpoint = SubResource( 3 )
+custom_styles/defaultframe = SubResource( 4 )
 title = "Transform"
 show_close = true
 slot/0/left_enabled = true

addons/material_maker/nodes/warp.mmg

@@ -0,0 +1 @@
+{"name":"warp","node_position":{"x":0,"y":0},"parameters":{"amount":0.2,"eps":0.045,"epsilon":0},"shader_model":{"global":"","inputs":[{"default":"vec4(sin($uv.x*20.0)*0.5+0.5, sin($uv.y*20.0)*0.5+0.5, 0, 1)","label":"","name":"in","type":"rgba"},{"default":"0.0","label":"","name":"d","type":"f"}],"instance":"","name":"Warp","outputs":[{"rgba":"$in($uv+$amount*vec2($d(fract($uv+vec2($eps, 0.0)))-$d(fract($uv-vec2($eps, 0.0))), $d(fract($uv+vec2(0.0, $eps)))-$d(fract($uv-vec2(0.0, $eps)))))","type":"rgba"}],"parameters":[{"default":0,"label":"","max":1,"min":0,"name":"amount","step":0.005,"type":"float","widget":"spinbox"},{"default":0,"label":"","max":0.2,"min":0.005,"name":"eps","step":0.005,"type":"float","widget":"spinbox"}]}}

addons/material_maker/preview.gd

@@ -43,7 +43,7 @@ func _on_Preview_resized():
 		$Preview2D.rect_size = Vector2(64, 64)
 
 func _on_Preview2D_gui_input(ev : InputEvent):
-	if ev is InputEventMouseButton && ev.button_index == 1 && ev.pressed:
+	if ev is InputEventMouseButton and ev.button_index == 1 and ev.pressed:
 		preview_maximized = !preview_maximized
 		_on_Preview_resized()