Tweak 3D settings in various demos

- Use 4× MSAA for a better visual appearance.
- Use "3D Without Effects" framebuffer allocation when possible
  for better performance.
- Disable Glow in the 3D Kinematic Character demo for better
  performance. Increase the DirectionalLight strength to compensate.
- Use a non-linear attenuation for the OmniLight in the
  Window Management demo (and increase its range to compensate).

misc/multitouch_cubes/Main.tscn

@@ -32,7 +32,9 @@ size = Vector2( 510, 298 )
 own_world = true
 transparent_bg = true
 handle_input_locally = false
+msaa = 2
 hdr = false
+usage = 3
 render_target_update_mode = 3
 
 [node name="Spatial" parent="HBoxContainer/ViewportContainer/Viewport" instance=ExtResource( 2 )]
@@ -64,7 +66,9 @@ size = Vector2( 510, 298 )
 own_world = true
 transparent_bg = true
 handle_input_locally = false
+msaa = 2
 hdr = false
+usage = 3
 render_target_update_mode = 3
 
 [node name="Spatial" parent="HBoxContainer/ViewportContainer2/Viewport" instance=ExtResource( 2 )]
@@ -101,7 +105,9 @@ size = Vector2( 510, 298 )
 own_world = true
 transparent_bg = true
 handle_input_locally = false
+msaa = 2
 hdr = false
+usage = 3
 render_target_update_mode = 3
 
 [node name="Spatial" parent="HBoxContainer2/ViewportContainer/Viewport" instance=ExtResource( 2 )]
@@ -131,7 +137,9 @@ size = Vector2( 510, 298 )
 own_world = true
 transparent_bg = true
 handle_input_locally = false
+msaa = 2
 hdr = false
+usage = 3
 render_target_update_mode = 3
 
 [node name="Spatial" parent="HBoxContainer2/ViewportContainer2/Viewport" instance=ExtResource( 2 )]

misc/pause/project.godot

@@ -30,4 +30,5 @@ singletons=[  ]
 
 [rendering]
 
+quality/intended_usage/framebuffer_allocation=3
 quality/filters/msaa=2

misc/window_management/observer/observer.tscn

@@ -17,3 +17,4 @@ far = 1000.0
 
 [node name="OmniLight" type="OmniLight" parent="."]
 omni_range = 8.0
+omni_attenuation = 2.0

misc/window_management/project.godot

@@ -72,3 +72,8 @@ move_right={
 , Object(InputEventKey,"resource_local_to_scene":false,"resource_name":"","device":0,"alt":false,"shift":false,"control":false,"meta":false,"command":false,"pressed":false,"scancode":16777233,"unicode":0,"echo":false,"script":null)
  ]
 }
+
+[rendering]
+
+quality/intended_usage/framebuffer_allocation=3
+quality/filters/msaa=2