Add SMAA option to the 3D antialiasing demo

- Rename various labels for readability.
- Use infinity symbol when FPS limit is set to 0.
- Use lossless compression for ship textures since they are low-resolution,
  and applied to a large object (making VRAM compression look bad).

Author: Calinou

3d/antialiasing/README.md

@@ -1,13 +1,17 @@
 # 3D Anti-Aliasing
 
-This project showcases the various 3D antialiasing techniques supported by Godot.
+This project showcases the various [3D antialiasing](https://docs.godotengine.org/en/latest/tutorials/3d/3d_antialiasing.html)
+techniques supported by Godot.
 
 - **Multisample antialiasing (MSAA):** High quality, high performance cost.
   Does not blur the image.
   - Does not affect shader-induced aliasing (such as specular aliasing) or alpha
 	scissor materials, so these will remain aliased.
-- **Fast approximate antialiasing (FXAA):** Medium quality, low performance cost.
+- **Fast approximate antialiasing (FXAA):** Low quality, low performance cost.
   Slightly blurs the image.
+- **Subpixel morphological antialiasing (SMAA):** Medium quality, moderate performance
+  cost. Slightly blurs the image, but not as much as FXAA. Godot only supports
+  the spatial version of SMAA, also called SMAA 1x.
 - **Temporal antialiasing (TAA):** High-quality, low performance cost. Slightly
   blurs the image (but less so than FXAA).
   - Antialiasing quality is worse on fast-moving objects than other methods,

3d/antialiasing/anti_aliasing.gd

@@ -23,8 +23,8 @@ func _ready() -> void:
 	if RenderingServer.get_current_rendering_method() == "gl_compatibility":
 		is_compatibility = true
 		# Hide unsupported features.
-		$Antialiasing/FXAAContainer.visible = false
-		$Antialiasing/TAAContainer.visible = false
+		$Antialiasing/ScreenSpaceAAContainer.visible = false
+		$Antialiasing/TemporalAAContainer.visible = false
 
 		# Darken the light's energy to compensate for sRGB blending (without affecting sky rendering).
 		$DirectionalLight3D.sky_mode = DirectionalLight3D.SKY_MODE_SKY_ONLY
@@ -78,8 +78,6 @@ func _process(delta: float) -> void:
 	fps_label.modulate = fps_label.get_meta(&"gradient").sample(remap(Engine.get_frames_per_second(), 0, 180, 0.0, 1.0))
 
 
-
-
 func _on_previous_pressed() -> void:
 	tester_index = max(0, tester_index - 1)
 	update_gui()
@@ -102,11 +100,11 @@ func _on_msaa_item_selected(index: int) -> void:
 	get_viewport().msaa_3d = index as Viewport.MSAA
 
 
-func _on_limit_fps_scale_value_changed(value: float) -> void:
+func _on_fps_limit_scale_value_changed(value: float) -> void:
 	# The rendering FPS affects the appearance of TAA, as higher framerates allow it to converge faster.
 	# On high refresh rate monitors, TAA ghosting issues may appear less noticeable as a result
 	# (if the GPU can keep up).
-	$Antialiasing/LimitFPSContainer/Value.text = str(value)
+	$Antialiasing/FPSLimitContainer/Value.text = str(roundi(value)) if not is_zero_approx(value) else "∞"
 	Engine.max_fps = roundi(value)
 
 
@@ -151,18 +149,19 @@ func _on_viewport_size_changed() -> void:
 
 
 func _on_v_sync_item_selected(index: int) -> void:
-	# Vsync is enabled by default.
+	# V-Sync is enabled by default.
 	# Vertical synchronization locks framerate and makes screen tearing not visible at the cost of
 	# higher input latency and stuttering when the framerate target is not met.
 	# Adaptive V-Sync automatically disables V-Sync when the framerate target is not met, and enables
 	# V-Sync otherwise. This prevents suttering and reduces input latency when the framerate target
 	# is not met, at the cost of visible tearing.
-	if index == 0: # Disabled (default)
-		DisplayServer.window_set_vsync_mode(DisplayServer.VSYNC_DISABLED)
-	elif index == 1: # Adaptive
-		DisplayServer.window_set_vsync_mode(DisplayServer.VSYNC_ADAPTIVE)
-	elif index == 2: # Enabled
-		DisplayServer.window_set_vsync_mode(DisplayServer.VSYNC_ENABLED)
+	match index:
+		0: # Disabled (default)
+			DisplayServer.window_set_vsync_mode(DisplayServer.VSYNC_DISABLED)
+		1: # Adaptive
+			DisplayServer.window_set_vsync_mode(DisplayServer.VSYNC_ADAPTIVE)
+		2: # Enabled
+			DisplayServer.window_set_vsync_mode(DisplayServer.VSYNC_ENABLED)
 
 
 func _on_taa_item_selected(index: int) -> void:
@@ -171,7 +170,8 @@ func _on_taa_item_selected(index: int) -> void:
 	get_viewport().use_taa = index == 1
 
 
-func _on_fxaa_item_selected(index: int) -> void:
-	# Fast approximate anti-aliasing. Much faster than MSAA (and works on alpha scissor edges),
+func _on_screen_space_aa_item_selected(index: int) -> void:
+	# Screen-space antialiasing. Much faster than MSAA (and works on alpha scissor edges),
 	# but blurs the whole scene rendering slightly.
-	get_viewport().screen_space_aa = int(index == 1) as Viewport.ScreenSpaceAA
+	# SMAA looks sharper than FXAA and has better edge coverage, but is slower.
+	get_viewport().screen_space_aa = int(index) as Viewport.ScreenSpaceAA

3d/antialiasing/anti_aliasing.tscn

@@ -813,7 +813,7 @@ transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, -68)
 mesh = SubResource("SphereMesh_v4x6x")
 
 [node name="Decal" type="Decal" parent="Testers/MovingDecal"]
-transform = Transform3D(-0.70710397, -1.0132787e-06, -0.7071092, 0.18301255, 0.96592563, -0.1830126, 0.68301517, -0.25881886, -0.68300986, 1, 1, 1)
+transform = Transform3D(-0.70710397, -1.0132787e-06, -0.7071092, 0.18301255, 0.9659256, -0.1830126, 0.68301517, -0.25881886, -0.68300986, 1, 1, 1)
 texture_albedo = ExtResource("3_2nulf")
 texture_normal = ExtResource("4_fdfpv")
 
@@ -886,20 +886,19 @@ offset_right = 394.0
 offset_bottom = 340.0
 theme_override_constants/separation = 10
 
-[node name="MSAAContainer" type="HBoxContainer" parent="Antialiasing"]
+[node name="MultisampleAAContainer" type="HBoxContainer" parent="Antialiasing"]
 layout_mode = 2
 
-[node name="Label" type="Label" parent="Antialiasing/MSAAContainer"]
+[node name="Label" type="Label" parent="Antialiasing/MultisampleAAContainer"]
 custom_minimum_size = Vector2(120, 2.08165e-12)
 layout_mode = 2
 size_flags_horizontal = 3
 theme_override_colors/font_outline_color = Color(0, 0, 0, 1)
 theme_override_constants/outline_size = 4
-text = "MSAA
-"
+text = "Multisample AA"
 vertical_alignment = 1
 
-[node name="MSAA" type="OptionButton" parent="Antialiasing/MSAAContainer"]
+[node name="MultisampleAA" type="OptionButton" parent="Antialiasing/MultisampleAAContainer"]
 custom_minimum_size = Vector2(235, 2.08165e-12)
 layout_mode = 2
 selected = 0
@@ -913,43 +912,43 @@ popup/item_2/id = 2
 popup/item_3/text = "8× (Slower)"
 popup/item_3/id = 3
 
-[node name="FXAAContainer" type="HBoxContainer" parent="Antialiasing"]
+[node name="ScreenSpaceAAContainer" type="HBoxContainer" parent="Antialiasing"]
 layout_mode = 2
 
-[node name="Label" type="Label" parent="Antialiasing/FXAAContainer"]
+[node name="Label" type="Label" parent="Antialiasing/ScreenSpaceAAContainer"]
 custom_minimum_size = Vector2(120, 2.08165e-12)
 layout_mode = 2
 size_flags_horizontal = 3
 theme_override_colors/font_outline_color = Color(0, 0, 0, 1)
 theme_override_constants/outline_size = 4
-text = "FXAA
-"
+text = "Screen-Space AA"
 vertical_alignment = 1
 
-[node name="FXAA" type="OptionButton" parent="Antialiasing/FXAAContainer"]
+[node name="ScreenSpaceAA" type="OptionButton" parent="Antialiasing/ScreenSpaceAAContainer"]
 custom_minimum_size = Vector2(235, 2.08165e-12)
 layout_mode = 2
 selected = 0
-item_count = 2
+item_count = 3
 popup/item_0/text = "Disabled (Fastest)"
 popup/item_0/id = 0
-popup/item_1/text = "Enabled (Fast)"
+popup/item_1/text = "FXAA (Fast)"
 popup/item_1/id = 1
+popup/item_2/text = "SMAA (Average)"
+popup/item_2/id = 2
 
-[node name="TAAContainer" type="HBoxContainer" parent="Antialiasing"]
+[node name="TemporalAAContainer" type="HBoxContainer" parent="Antialiasing"]
 layout_mode = 2
 
-[node name="Label" type="Label" parent="Antialiasing/TAAContainer"]
+[node name="Label" type="Label" parent="Antialiasing/TemporalAAContainer"]
 custom_minimum_size = Vector2(120, 2.08165e-12)
 layout_mode = 2
 size_flags_horizontal = 3
 theme_override_colors/font_outline_color = Color(0, 0, 0, 1)
 theme_override_constants/outline_size = 4
-text = "TAA
-"
+text = "Temporal AA"
 vertical_alignment = 1
 
-[node name="TAA" type="OptionButton" parent="Antialiasing/TAAContainer"]
+[node name="TemporalAA" type="OptionButton" parent="Antialiasing/TemporalAAContainer"]
 custom_minimum_size = Vector2(235, 2.08165e-12)
 layout_mode = 2
 selected = 0
@@ -983,33 +982,33 @@ popup/item_1/id = 1
 popup/item_2/text = "Enabled"
 popup/item_2/id = 2
 
-[node name="LimitFPSContainer" type="HBoxContainer" parent="Antialiasing"]
+[node name="FPSLimitContainer" type="HBoxContainer" parent="Antialiasing"]
 layout_mode = 2
 theme_override_constants/separation = 15
 
-[node name="Label" type="Label" parent="Antialiasing/LimitFPSContainer"]
+[node name="Label" type="Label" parent="Antialiasing/FPSLimitContainer"]
 custom_minimum_size = Vector2(120, 2.08165e-12)
 layout_mode = 2
 size_flags_horizontal = 3
 theme_override_colors/font_outline_color = Color(0, 0, 0, 1)
 theme_override_constants/outline_size = 4
-text = "Limit FPS"
+text = "FPS Limit"
 vertical_alignment = 1
 
-[node name="LimitFPSScale" type="HSlider" parent="Antialiasing/LimitFPSContainer"]
+[node name="FPSLimitScale" type="HSlider" parent="Antialiasing/FPSLimitContainer"]
 layout_mode = 2
 size_flags_horizontal = 3
 size_flags_vertical = 4
 size_flags_stretch_ratio = 3.0
 max_value = 300.0
 step = 10.0
 
-[node name="Value" type="Label" parent="Antialiasing/LimitFPSContainer"]
+[node name="Value" type="Label" parent="Antialiasing/FPSLimitContainer"]
 layout_mode = 2
 size_flags_horizontal = 3
 theme_override_colors/font_outline_color = Color(0, 0, 0, 1)
 theme_override_constants/outline_size = 4
-text = "0"
+text = "∞"
 horizontal_alignment = 1
 vertical_alignment = 1
 
@@ -1099,11 +1098,11 @@ metadata/gradient = SubResource("Gradient_ehij4")
 
 [connection signal="pressed" from="Previous" to="." method="_on_previous_pressed"]
 [connection signal="pressed" from="Next" to="." method="_on_next_pressed"]
-[connection signal="item_selected" from="Antialiasing/MSAAContainer/MSAA" to="." method="_on_msaa_item_selected"]
-[connection signal="item_selected" from="Antialiasing/FXAAContainer/FXAA" to="." method="_on_fxaa_item_selected"]
-[connection signal="item_selected" from="Antialiasing/TAAContainer/TAA" to="." method="_on_taa_item_selected"]
+[connection signal="item_selected" from="Antialiasing/MultisampleAAContainer/MultisampleAA" to="." method="_on_msaa_item_selected"]
+[connection signal="item_selected" from="Antialiasing/ScreenSpaceAAContainer/ScreenSpaceAA" to="." method="_on_screen_space_aa_item_selected"]
+[connection signal="item_selected" from="Antialiasing/TemporalAAContainer/TemporalAA" to="." method="_on_taa_item_selected"]
 [connection signal="item_selected" from="Antialiasing/VSyncContainer/VSync" to="." method="_on_v_sync_item_selected"]
-[connection signal="value_changed" from="Antialiasing/LimitFPSContainer/LimitFPSScale" to="." method="_on_limit_fps_scale_value_changed"]
+[connection signal="value_changed" from="Antialiasing/FPSLimitContainer/FPSLimitScale" to="." method="_on_fps_limit_scale_value_changed"]
 [connection signal="value_changed" from="Antialiasing/RenderScaleContainer/RenderScale" to="." method="_on_render_scale_value_changed"]
 [connection signal="toggled" from="Antialiasing/FidelityFXFSR" to="." method="_on_amd_fidelityfx_fsr1_toggled"]
 [connection signal="item_selected" from="Antialiasing/FSRSharpness" to="." method="_on_fsr_sharpness_item_selected"]

3d/antialiasing/polyhaven/textures/dutch_ship_medium_hull_arm_1k.jpg.import

@@ -3,20 +3,19 @@
 importer="texture"
 type="CompressedTexture2D"
 uid="uid://y1d8bbofs2j1"
-path.s3tc="res://.godot/imported/dutch_ship_medium_hull_arm_1k.jpg-1bcb2be1a58190217bafabbba5a96cb5.s3tc.ctex"
+path="res://.godot/imported/dutch_ship_medium_hull_arm_1k.jpg-1bcb2be1a58190217bafabbba5a96cb5.ctex"
 metadata={
-"imported_formats": ["s3tc_bptc"],
-"vram_texture": true
+"vram_texture": false
 }
 
 [deps]
 
 source_file="res://polyhaven/textures/dutch_ship_medium_hull_arm_1k.jpg"
-dest_files=["res://.godot/imported/dutch_ship_medium_hull_arm_1k.jpg-1bcb2be1a58190217bafabbba5a96cb5.s3tc.ctex"]
+dest_files=["res://.godot/imported/dutch_ship_medium_hull_arm_1k.jpg-1bcb2be1a58190217bafabbba5a96cb5.ctex"]
 
 [params]
 
-compress/mode=2
+compress/mode=0
 compress/high_quality=false
 compress/lossy_quality=0.7
 compress/uastc_level=0

3d/antialiasing/polyhaven/textures/dutch_ship_medium_hull_diff_1k.jpg.import

@@ -3,20 +3,19 @@
 importer="texture"
 type="CompressedTexture2D"
 uid="uid://cpqm052kluinu"
-path.s3tc="res://.godot/imported/dutch_ship_medium_hull_diff_1k.jpg-d22f57383d3437ac6151a5dc155d1b44.s3tc.ctex"
+path="res://.godot/imported/dutch_ship_medium_hull_diff_1k.jpg-d22f57383d3437ac6151a5dc155d1b44.ctex"
 metadata={
-"imported_formats": ["s3tc_bptc"],
-"vram_texture": true
+"vram_texture": false
 }
 
 [deps]
 
 source_file="res://polyhaven/textures/dutch_ship_medium_hull_diff_1k.jpg"
-dest_files=["res://.godot/imported/dutch_ship_medium_hull_diff_1k.jpg-d22f57383d3437ac6151a5dc155d1b44.s3tc.ctex"]
+dest_files=["res://.godot/imported/dutch_ship_medium_hull_diff_1k.jpg-d22f57383d3437ac6151a5dc155d1b44.ctex"]
 
 [params]
 
-compress/mode=2
+compress/mode=0
 compress/high_quality=false
 compress/lossy_quality=0.7
 compress/uastc_level=0

3d/antialiasing/polyhaven/textures/dutch_ship_medium_hull_nor_gl_1k.jpg.import

@@ -3,20 +3,19 @@
 importer="texture"
 type="CompressedTexture2D"
 uid="uid://dx4v7lwh3dlk2"
-path.s3tc="res://.godot/imported/dutch_ship_medium_hull_nor_gl_1k.jpg-f0fc1f178ac5ff99bdf2aae06e0701f1.s3tc.ctex"
+path="res://.godot/imported/dutch_ship_medium_hull_nor_gl_1k.jpg-f0fc1f178ac5ff99bdf2aae06e0701f1.ctex"
 metadata={
-"imported_formats": ["s3tc_bptc"],
-"vram_texture": true
+"vram_texture": false
 }
 
 [deps]
 
 source_file="res://polyhaven/textures/dutch_ship_medium_hull_nor_gl_1k.jpg"
-dest_files=["res://.godot/imported/dutch_ship_medium_hull_nor_gl_1k.jpg-f0fc1f178ac5ff99bdf2aae06e0701f1.s3tc.ctex"]
+dest_files=["res://.godot/imported/dutch_ship_medium_hull_nor_gl_1k.jpg-f0fc1f178ac5ff99bdf2aae06e0701f1.ctex"]
 
 [params]
 
-compress/mode=2
+compress/mode=0
 compress/high_quality=false
 compress/lossy_quality=0.7
 compress/uastc_level=0

3d/antialiasing/polyhaven/textures/dutch_ship_medium_rigging_arm_1k.jpg.import

@@ -3,20 +3,19 @@
 importer="texture"
 type="CompressedTexture2D"
 uid="uid://cprmlobj741yv"
-path.s3tc="res://.godot/imported/dutch_ship_medium_rigging_arm_1k.jpg-6de8e054b6e80b00009332eaf9eafbeb.s3tc.ctex"
+path="res://.godot/imported/dutch_ship_medium_rigging_arm_1k.jpg-6de8e054b6e80b00009332eaf9eafbeb.ctex"
 metadata={
-"imported_formats": ["s3tc_bptc"],
-"vram_texture": true
+"vram_texture": false
 }
 
 [deps]
 
 source_file="res://polyhaven/textures/dutch_ship_medium_rigging_arm_1k.jpg"
-dest_files=["res://.godot/imported/dutch_ship_medium_rigging_arm_1k.jpg-6de8e054b6e80b00009332eaf9eafbeb.s3tc.ctex"]
+dest_files=["res://.godot/imported/dutch_ship_medium_rigging_arm_1k.jpg-6de8e054b6e80b00009332eaf9eafbeb.ctex"]
 
 [params]
 
-compress/mode=2
+compress/mode=0
 compress/high_quality=false
 compress/lossy_quality=0.7
 compress/uastc_level=0

3d/antialiasing/polyhaven/textures/dutch_ship_medium_rigging_diff_1k.jpg.import

@@ -3,20 +3,19 @@
 importer="texture"
 type="CompressedTexture2D"
 uid="uid://d0r11ltathrwx"
-path.s3tc="res://.godot/imported/dutch_ship_medium_rigging_diff_1k.jpg-b381c8dba5fcad22696086becdc354b0.s3tc.ctex"
+path="res://.godot/imported/dutch_ship_medium_rigging_diff_1k.jpg-b381c8dba5fcad22696086becdc354b0.ctex"
 metadata={
-"imported_formats": ["s3tc_bptc"],
-"vram_texture": true
+"vram_texture": false
 }
 
 [deps]
 
 source_file="res://polyhaven/textures/dutch_ship_medium_rigging_diff_1k.jpg"
-dest_files=["res://.godot/imported/dutch_ship_medium_rigging_diff_1k.jpg-b381c8dba5fcad22696086becdc354b0.s3tc.ctex"]
+dest_files=["res://.godot/imported/dutch_ship_medium_rigging_diff_1k.jpg-b381c8dba5fcad22696086becdc354b0.ctex"]
 
 [params]
 
-compress/mode=2
+compress/mode=0
 compress/high_quality=false
 compress/lossy_quality=0.7
 compress/uastc_level=0

3d/antialiasing/polyhaven/textures/dutch_ship_medium_rigging_nor_gl_1k.jpg.import

@@ -3,20 +3,19 @@
 importer="texture"
 type="CompressedTexture2D"
 uid="uid://bws456aqy70dc"
-path.s3tc="res://.godot/imported/dutch_ship_medium_rigging_nor_gl_1k.jpg-26a255f6574d49990ad4162b06c015da.s3tc.ctex"
+path="res://.godot/imported/dutch_ship_medium_rigging_nor_gl_1k.jpg-26a255f6574d49990ad4162b06c015da.ctex"
 metadata={
-"imported_formats": ["s3tc_bptc"],
-"vram_texture": true
+"vram_texture": false
 }
 
 [deps]
 
 source_file="res://polyhaven/textures/dutch_ship_medium_rigging_nor_gl_1k.jpg"
-dest_files=["res://.godot/imported/dutch_ship_medium_rigging_nor_gl_1k.jpg-26a255f6574d49990ad4162b06c015da.s3tc.ctex"]
+dest_files=["res://.godot/imported/dutch_ship_medium_rigging_nor_gl_1k.jpg-26a255f6574d49990ad4162b06c015da.ctex"]
 
 [params]
 
-compress/mode=2
+compress/mode=0
 compress/high_quality=false
 compress/lossy_quality=0.7
 compress/uastc_level=0