Use Jolt Physics in all 3D demos that use physics, improve physics tests demos (#1195)

- Add options for physics ticks per second, time scale, max physics steps per frame
  and physics interpolation to the 2D and 3D physics tests demos.
  - Physics ticks per second are always multiplied by time scale so that
    time scale does not affect the physics simulation quality.
- Enable 4× MSAA for better debug shape display. Remove meshes/lights as
  the debug collision fill make these unnecessary.
  - Switch to the Mobile rendering method in the 2D physics tests demo
    to allow for 2D MSAA, as it's not implemented in Compatibility yet.
- Improve collision shapes color in the 2D and 3D physics tests demos
  for better visibility. Each PhysicsBody type now has its own collision
  shape color.

Author: Calinou

2d/physics_tests/README.md

@@ -12,10 +12,10 @@ They can be used for different purpose:
 
 Language: GDScript
 
-Renderer: Compatibility
+Renderer: Mobile
 
 Check out this demo on the asset library: https://godotengine.org/asset-library/asset/2726
 
 ## Screenshots
 
-![Screenshot](screenshots/screenshot.png)
+![Screenshot](screenshots/physics_tests.webp)

2d/physics_tests/assets/tileset/tileset.tres

@@ -7,12 +7,8 @@ texture = ExtResource("1")
 0:0/next_alternative_id = 8
 0:0/0 = 0
 0:0/0/modulate = Color(0, 0, 1, 1)
-0:0/0/physics_layer_0/linear_velocity = Vector2(0, 0)
-0:0/0/physics_layer_0/angular_velocity = 0.0
 0:0/0/physics_layer_0/polygon_0/points = PackedVector2Array(-8, -8, 8, -8, 8, 8, -8, 8)
 1:0/0 = 0
-1:0/0/physics_layer_0/linear_velocity = Vector2(0, 0)
-1:0/0/physics_layer_0/angular_velocity = 0.0
 1:0/0/physics_layer_0/polygon_0/points = PackedVector2Array(-8, -8, 8, -8, 8, 8, -8, 8)
 1:0/0/physics_layer_0/polygon_0/one_way = true
 

2d/physics_tests/main.tscn

@@ -1,13 +1,17 @@
-[gd_scene load_steps=11 format=3 uid="uid://6a0nxwkgf5dq"]
+[gd_scene load_steps=15 format=3 uid="uid://6a0nxwkgf5dq"]
 
 [ext_resource type="Script" uid="uid://db4ofia8ieq55" path="res://utils/label_fps.gd" id="1"]
 [ext_resource type="Script" uid="uid://dustsplck84ac" path="res://utils/label_version.gd" id="2"]
 [ext_resource type="Script" uid="uid://c87b1snynit3u" path="res://utils/label_engine.gd" id="3"]
 [ext_resource type="Script" uid="uid://cw0pi4lgucxdr" path="res://tests_menu.gd" id="4"]
 [ext_resource type="Script" uid="uid://bjl0grl2gv43y" path="res://utils/label_test.gd" id="5"]
 [ext_resource type="Script" uid="uid://b4rnndt2dw5g1" path="res://utils/label_pause.gd" id="6"]
+[ext_resource type="Script" uid="uid://7kql0xtuc7ny" path="res://utils/ticks_per_second.gd" id="8_dg77c"]
+[ext_resource type="Script" uid="uid://beqnv31yip0bl" path="res://utils/time_scale.gd" id="9_ycdy4"]
 [ext_resource type="Script" uid="uid://k8crlob60yte" path="res://utils/container_log.gd" id="10"]
+[ext_resource type="Script" uid="uid://cvoeuonqmsye1" path="res://utils/max_steps_per_frame.gd" id="10_w48qg"]
 [ext_resource type="Script" uid="uid://b2t0e1okrl3j4" path="res://utils/scroll_log.gd" id="11"]
+[ext_resource type="Script" uid="uid://ijebwwx4t8et" path="res://utils/physics_interpolation.gd" id="11_ycdy4"]
 [ext_resource type="Script" uid="uid://db80201lynb6l" path="res://tests.gd" id="12"]
 
 [sub_resource type="StyleBoxFlat" id="1"]
@@ -29,7 +33,7 @@ offset_left = 10.0
 offset_top = 10.0
 offset_right = 125.0
 offset_bottom = 30.0
-text = "TESTS"
+text = "Tests"
 flat = false
 script = ExtResource("4")
 
@@ -39,17 +43,18 @@ offset_left = 157.0
 offset_top = 13.0
 offset_right = 646.0
 offset_bottom = 27.0
-text = "P - TOGGLE PAUSE / R - RESTART / C - TOGGLE COLLISION / F - TOGGLE FULL SCREEN / ESC - QUIT"
+theme_override_constants/outline_size = 4
+text = "P: Toggle Pause  |  R: Restart  |  C: Toggle Collision  |  F: Toggle Fullscreen  |  ESC: Quit"
 
 [node name="LabelFPS" type="Label" parent="."]
 layout_mode = 1
 anchors_preset = 2
 anchor_top = 1.0
 anchor_bottom = 1.0
 offset_left = 10.0
-offset_top = -19.0
-offset_right = 50.0
-offset_bottom = -5.0
+offset_top = -36.0
+offset_right = 55.0
+offset_bottom = -13.0
 grow_vertical = 0
 theme_override_colors/font_outline_color = Color(0, 0, 0, 1)
 theme_override_constants/outline_size = 4
@@ -62,10 +67,11 @@ anchors_preset = 2
 anchor_top = 1.0
 anchor_bottom = 1.0
 offset_left = 10.0
-offset_top = -56.0
+offset_top = -64.0
 offset_right = 128.0
-offset_bottom = -33.0
+offset_bottom = -41.0
 grow_vertical = 0
+theme_override_colors/font_color = Color(1, 1, 1, 0.752941)
 theme_override_colors/font_outline_color = Color(0, 0, 0, 1)
 theme_override_constants/outline_size = 4
 text = "Physics engine:"
@@ -77,13 +83,14 @@ anchors_preset = 2
 anchor_top = 1.0
 anchor_bottom = 1.0
 offset_left = 10.0
-offset_top = -84.0
+offset_top = -92.0
 offset_right = 125.0
-offset_bottom = -61.0
+offset_bottom = -69.0
 grow_vertical = 0
+theme_override_colors/font_color = Color(1, 1, 1, 0.752941)
 theme_override_colors/font_outline_color = Color(0, 0, 0, 1)
 theme_override_constants/outline_size = 4
-text = "Godot Version:"
+text = "Godot version:"
 script = ExtResource("2")
 
 [node name="LabelTest" type="Label" parent="."]
@@ -92,9 +99,9 @@ anchors_preset = 2
 anchor_top = 1.0
 anchor_bottom = 1.0
 offset_left = 10.0
-offset_top = -112.0
+offset_top = -120.0
 offset_right = 50.0
-offset_bottom = -89.0
+offset_bottom = -97.0
 grow_vertical = 0
 theme_override_colors/font_outline_color = Color(0, 0, 0, 1)
 theme_override_constants/outline_size = 4
@@ -112,10 +119,122 @@ offset_top = 48.0
 offset_right = 62.0
 offset_bottom = 96.0
 grow_horizontal = 2
-theme_override_font_sizes/font_size = 32
-text = "PAUSED"
+theme_override_constants/outline_size = 6
+theme_override_font_sizes/font_size = 24
+text = "Paused"
 script = ExtResource("6")
 
+[node name="Options" type="VBoxContainer" parent="."]
+layout_mode = 1
+anchors_preset = 1
+anchor_left = 1.0
+anchor_right = 1.0
+offset_left = -392.0
+offset_top = 56.0
+offset_right = -16.0
+offset_bottom = 168.0
+grow_horizontal = 0
+theme_override_constants/separation = 6
+
+[node name="TicksPerSecond" type="HBoxContainer" parent="Options"]
+layout_mode = 2
+tooltip_text = "Higher values make physics more precise at the cost of higher CPU utilization.
+Low values may result in objects phasing through each other (tunneling).
+Physics ticks per second are automatically multiplied by Time Scale in this project."
+theme_override_constants/separation = 10
+script = ExtResource("8_dg77c")
+
+[node name="Label" type="Label" parent="Options/TicksPerSecond"]
+custom_minimum_size = Vector2(164, 0)
+layout_mode = 2
+theme_override_colors/font_outline_color = Color(0, 0, 0, 1)
+theme_override_constants/outline_size = 4
+text = "Ticks per Second"
+
+[node name="HSlider" type="HSlider" parent="Options/TicksPerSecond"]
+custom_minimum_size = Vector2(160, 0)
+layout_mode = 2
+size_flags_vertical = 4
+min_value = 10.0
+max_value = 240.0
+step = 10.0
+value = 60.0
+
+[node name="Value" type="Label" parent="Options/TicksPerSecond"]
+layout_mode = 2
+theme_override_colors/font_outline_color = Color(0, 0, 0, 1)
+theme_override_constants/outline_size = 4
+text = "60"
+
+[node name="TimeScale" type="HBoxContainer" parent="Options"]
+layout_mode = 2
+tooltip_text = "Game speed multiplier. Physics ticks per second are
+automatically multiplied by Time Scale in this project
+to ensure accurate simulation regardless of time scale."
+theme_override_constants/separation = 10
+script = ExtResource("9_ycdy4")
+
+[node name="Label" type="Label" parent="Options/TimeScale"]
+custom_minimum_size = Vector2(164, 0)
+layout_mode = 2
+theme_override_colors/font_outline_color = Color(0, 0, 0, 1)
+theme_override_constants/outline_size = 4
+text = "Time Scale"
+
+[node name="HSlider" type="HSlider" parent="Options/TimeScale"]
+custom_minimum_size = Vector2(160, 0)
+layout_mode = 2
+size_flags_vertical = 4
+max_value = 5.0
+step = 0.5
+value = 0.5
+
+[node name="Value" type="Label" parent="Options/TimeScale"]
+layout_mode = 2
+theme_override_colors/font_outline_color = Color(0, 0, 0, 1)
+theme_override_constants/outline_size = 4
+text = "1.0×"
+
+[node name="MaxStepsPerFrame" type="HBoxContainer" parent="Options"]
+layout_mode = 2
+tooltip_text = "Physics will slow down if more physics steps
+than this value need to be simulated in a
+single rendered frame."
+theme_override_constants/separation = 10
+script = ExtResource("10_w48qg")
+
+[node name="Label" type="Label" parent="Options/MaxStepsPerFrame"]
+custom_minimum_size = Vector2(164, 0)
+layout_mode = 2
+theme_override_colors/font_outline_color = Color(0, 0, 0, 1)
+theme_override_constants/outline_size = 4
+text = "Max Steps per Frame"
+
+[node name="HSlider" type="HSlider" parent="Options/MaxStepsPerFrame"]
+custom_minimum_size = Vector2(160, 0)
+layout_mode = 2
+size_flags_vertical = 4
+min_value = 1.0
+max_value = 20.0
+value = 8.0
+
+[node name="Value" type="Label" parent="Options/MaxStepsPerFrame"]
+layout_mode = 2
+theme_override_colors/font_outline_color = Color(0, 0, 0, 1)
+theme_override_constants/outline_size = 4
+text = "8"
+
+[node name="PhysicsInterpolation" type="CheckButton" parent="Options"]
+custom_minimum_size = Vector2(217, 0)
+layout_mode = 2
+size_flags_horizontal = 0
+tooltip_text = "Smooths out rendering regardless of the physics tick rate.
+This is a purely visual effect and has no impact on the physics simulation."
+theme_override_constants/outline_size = 4
+button_pressed = true
+text = "Physics Interpolation"
+script = ExtResource("11_ycdy4")
+
 [node name="PanelLog" type="Panel" parent="."]
 layout_mode = 1
 anchors_preset = 3
@@ -127,6 +246,7 @@ offset_left = -630.0
 offset_top = -251.0
 grow_horizontal = 0
 grow_vertical = 0
+mouse_filter = 1
 theme_override_styles/panel = SubResource("1")
 
 [node name="ButtonClear" type="Button" parent="PanelLog"]
@@ -136,8 +256,8 @@ anchor_left = 1.0
 anchor_top = 1.0
 anchor_right = 1.0
 anchor_bottom = 1.0
-offset_left = -48.0
-offset_top = -25.0
+offset_left = -65.0
+offset_top = -36.0
 offset_right = -5.0
 offset_bottom = -5.0
 grow_horizontal = 0
@@ -152,13 +272,14 @@ anchor_left = 1.0
 anchor_top = 1.0
 anchor_right = 1.0
 anchor_bottom = 1.0
-offset_left = -261.0
+offset_left = -269.0
 offset_top = -35.0
-offset_right = -62.0
+offset_right = -70.0
 offset_bottom = -4.0
 grow_horizontal = 0
 grow_vertical = 0
 focus_mode = 0
+button_pressed = true
 text = "Automatic Scrolling"
 
 [node name="ScrollLog" type="ScrollContainer" parent="PanelLog"]
@@ -182,5 +303,9 @@ layout_mode = 2
 text = "Log start"
 max_lines_visible = 5
 
+[connection signal="value_changed" from="Options/TicksPerSecond/HSlider" to="Options/TicksPerSecond" method="_on_h_slider_value_changed"]
+[connection signal="value_changed" from="Options/TimeScale/HSlider" to="Options/TimeScale" method="_on_h_slider_value_changed"]
+[connection signal="value_changed" from="Options/MaxStepsPerFrame/HSlider" to="Options/MaxStepsPerFrame" method="_on_h_slider_value_changed"]
+[connection signal="toggled" from="Options/PhysicsInterpolation" to="Options/PhysicsInterpolation" method="_on_check_button_toggled"]
 [connection signal="pressed" from="PanelLog/ButtonClear" to="PanelLog/ScrollLog/VBoxLog" method="clear"]
 [connection signal="toggled" from="PanelLog/CheckBoxScroll" to="PanelLog/ScrollLog" method="_on_check_box_scroll_toggled"]

2d/physics_tests/project.godot

@@ -24,6 +24,7 @@ System="*res://utils/system.gd"
 [debug]
 
 gdscript/warnings/untyped_declaration=1
+shapes/collision/shape_color=Color(0, 0.533333, 1, 1)
 
 [display]
 
@@ -103,5 +104,5 @@ common/physics_interpolation=true
 
 [rendering]
 
-renderer/rendering_method="gl_compatibility"
-renderer/rendering_method.mobile="gl_compatibility"
+renderer/rendering_method="mobile"
+anti_aliasing/quality/msaa_2d=2

2d/physics_tests/screenshots/physics_tests.webp

@@ -55,7 +55,7 @@ func add_shape(shape: Shape2D, shape_transform: Transform2D, color: Color) -> vo
 	var collision := CollisionShape2D.new()
 	collision.shape = shape
 	collision.transform = shape_transform
-	collision.modulate = color
+	collision.debug_color = color * Color(1, 1, 1, 0.1)
 	_drawn_nodes.push_back(collision)
 	add_child(collision)
 
@@ -70,6 +70,7 @@ func create_rigidbody(shape: Shape2D, pickable: bool = false, shape_transform: T
 	var collision := CollisionShape2D.new()
 	collision.shape = shape
 	collision.transform = shape_transform
+	collision.debug_color = Color.YELLOW * Color(1, 1, 1, 0.1)
 
 	var body := RigidBody2D.new()
 	body.add_child(collision)

2d/physics_tests/screenshots/screenshot.png

@@ -3,8 +3,9 @@
 [sub_resource type="RectangleShape2D" id="1"]
 size = Vector2(40, 40)
 
-[node name="StackBox" type="RigidDynamicBody2D"]
+[node name="StackBox" type="RigidBody2D"]
 position = Vector2(-180, -20)
 
 [node name="CollisionShape2D" type="CollisionShape2D" parent="."]
 shape = SubResource("1")
+debug_color = Color(1, 1, 0, 0.0980392)