Add Limit FPS option to the 3D Graphics Settings demo (#970)

3d/graphics_settings/control.tscn

@@ -230,6 +230,19 @@ popup/item_1/id = 1
 popup/item_2/text = "Enabled"
 popup/item_2/id = 2
 
+[node name="LimitFPSLabel" type="Label" parent="SettingsMenu/ScrollContainer/VBoxContainer/GridContainer2"]
+layout_mode = 2
+size_flags_horizontal = 3
+theme_override_font_sizes/font_size = 16
+text = "Limit FPS:"
+
+[node name="LimitFPSSlider" type="HSlider" parent="SettingsMenu/ScrollContainer/VBoxContainer/GridContainer2"]
+layout_mode = 2
+size_flags_horizontal = 3
+size_flags_vertical = 3
+max_value = 300.0
+step = 10.0
+
 [node name="TAALabel" type="Label" parent="SettingsMenu/ScrollContainer/VBoxContainer/GridContainer2"]
 layout_mode = 2
 size_flags_horizontal = 3
@@ -630,6 +643,7 @@ horizontal_alignment = 2
 [connection signal="value_changed" from="SettingsMenu/ScrollContainer/VBoxContainer/GridContainer2/FSRSharpnessSlider" to="." method="_on_fsr_sharpness_slider_value_changed"]
 [connection signal="item_selected" from="SettingsMenu/ScrollContainer/VBoxContainer/GridContainer2/FullscreenOptionButton" to="." method="_on_fullscreen_option_button_item_selected"]
 [connection signal="item_selected" from="SettingsMenu/ScrollContainer/VBoxContainer/GridContainer2/VsyncOptionButton" to="." method="_on_vsync_option_button_item_selected"]
+[connection signal="value_changed" from="SettingsMenu/ScrollContainer/VBoxContainer/GridContainer2/LimitFPSSlider" to="." method="_on_limit_fps_slider_value_changed"]
 [connection signal="item_selected" from="SettingsMenu/ScrollContainer/VBoxContainer/GridContainer2/TAAOptionButton" to="." method="_on_taa_option_button_item_selected"]
 [connection signal="item_selected" from="SettingsMenu/ScrollContainer/VBoxContainer/GridContainer2/MSAAOptionButton" to="." method="_on_msaa_option_button_item_selected"]
 [connection signal="item_selected" from="SettingsMenu/ScrollContainer/VBoxContainer/GridContainer2/FXAAOptionButton" to="." method="_on_fxaa_option_button_item_selected"]

3d/graphics_settings/project.godot

@@ -11,10 +11,10 @@ config_version=5
 [application]
 
 config/name="3D Graphics Settings"
+config/tags=PackedStringArray("3d", "demo", "official", "rendering", "settings")
 run/main_scene="res://control.tscn"
-config/features=PackedStringArray("4.0")
+config/features=PackedStringArray("4.1")
 config/icon="res://icon.webp"
-config/tags=PackedStringArray("3d", "demo", "official", "rendering", "settings")
 
 [display]
 

3d/graphics_settings/settings.gd

@@ -1,5 +1,6 @@
 extends Control
 
+
 # Window project settings:
 #  - Stretch mode is set to `canvas_items` (`2d` in Godot 3.x)
 #  - Stretch aspect is set to `expand`
@@ -114,6 +115,12 @@ func _on_vsync_option_button_item_selected(index: int) -> void:
 		DisplayServer.window_set_vsync_mode(DisplayServer.VSYNC_ENABLED)
 
 
+func _on_limit_fps_slider_value_changed(value: float):
+	# The maximum number of frames per second that can be rendered.
+	# A value of 0 means "no limit".
+	Engine.max_fps = value
+
+
 func _on_msaa_option_button_item_selected(index: int) -> void:
 	# Multi-sample anti-aliasing. High quality, but slow. It also does not smooth out the edges of
 	# transparent (alpha scissor) textures.