Improve 3D global illumination demo (3.x) (#759)

3d/global_illumination/default_env.tres

@@ -9,5 +9,6 @@ background_mode = 2
 background_sky = SubResource( 1 )
 fog_sun_amount = 1.0
 fog_depth_begin = 0.0
-tonemap_mode = 2
+tonemap_mode = 4
 tonemap_white = 6.0
+ssao_intensity = 0.5

3d/global_illumination/project.godot

@@ -27,9 +27,9 @@ cycle_gi_mode={
 "events": [ Object(InputEventKey,"resource_local_to_scene":false,"resource_name":"","device":0,"alt":false,"shift":false,"control":false,"meta":false,"command":false,"pressed":false,"scancode":32,"physical_scancode":0,"unicode":0,"echo":false,"script":null)
  ]
 }
-toggle_reflection_probe={
+cycle_reflection_probe_mode={
 "deadzone": 0.5,
-"events": [ Object(InputEventKey,"resource_local_to_scene":false,"resource_name":"","device":0,"alt":false,"shift":false,"control":false,"meta":false,"command":false,"pressed":false,"scancode":82,"physical_scancode":0,"unicode":0,"echo":false,"script":null)
+"events": [ Object(InputEventKey,"resource_local_to_scene":false,"resource_name":"","device":0,"alt":false,"shift":false,"control":false,"meta":false,"command":false,"pressed":false,"scancode":0,"physical_scancode":82,"unicode":0,"echo":false,"script":null)
  ]
 }
 move_forward={
@@ -62,6 +62,11 @@ toggle_mouse_capture={
 , Object(InputEventKey,"resource_local_to_scene":false,"resource_name":"","device":0,"alt":false,"shift":false,"control":false,"meta":false,"command":false,"pressed":false,"scancode":0,"physical_scancode":16777217,"unicode":0,"echo":false,"script":null)
  ]
 }
+toggle_ssao={
+"deadzone": 0.5,
+"events": [ Object(InputEventKey,"resource_local_to_scene":false,"resource_name":"","device":0,"alt":false,"shift":false,"control":false,"meta":false,"command":false,"pressed":false,"scancode":0,"physical_scancode":70,"unicode":0,"echo":false,"script":null)
+ ]
+}
 
 [physics]
 
@@ -70,4 +75,7 @@ common/enable_pause_aware_picking=true
 [rendering]
 
 quality/shadows/filter_mode=2
+quality/filters/use_fxaa=true
+quality/filters/use_debanding=true
 environment/default_environment="res://default_env.tres"
+quality/filters/use_debanding.mobile=false

3d/global_illumination/test.gd

@@ -16,9 +16,25 @@ const GI_MODE_TEXTS = [
 	"GIProbe (Slow)",
 ]
 
+enum ReflectionProbeMode {
+	NONE,
+	ONCE,
+	ALWAYS,
+	MAX,
+}
+
+# Keep this in sync with the ReflectionProbeMode enum (except for MAX).
+const REFLECTION_PROBE_MODE_TEXTS = [
+	"Disabled - Using environment, VoxelGI or SDFGI reflections (Fastest)",
+	"Enabled - \"Once\" Update Mode (Average)",
+	"Enabled - \"Always\" Update Mode (Slow)",
+]
+
 var gi_mode = GIMode.NONE
-var use_reflection_probe = false
+var reflection_probe_mode = ReflectionProbeMode.NONE
+var use_ssao = false
 
+onready var environment = preload("res://default_env.tres")
 onready var gi_mode_label = $GIMode
 onready var reflection_probe_mode_label = $ReflectionProbeMode
 onready var reflection_probe = $Camera/ReflectiveSphere/ReflectionProbe
@@ -26,15 +42,19 @@ onready var reflection_probe = $Camera/ReflectiveSphere/ReflectionProbe
 
 func _ready():
 	set_gi_mode(GIMode.NONE)
-	set_use_reflection_probe(false)
+	set_reflection_probe_mode(ReflectionProbeMode.NONE)
+	set_use_ssao(use_ssao)
 
 
 func _input(event):
 	if event.is_action_pressed("cycle_gi_mode"):
 		set_gi_mode(wrapi(gi_mode + 1, 0, GIMode.MAX))
 
-	if event.is_action_pressed("toggle_reflection_probe"):
-		set_use_reflection_probe(not use_reflection_probe)
+	if event.is_action_pressed("cycle_reflection_probe_mode"):
+		set_reflection_probe_mode(wrapi(reflection_probe_mode + 1, 0, ReflectionProbeMode.MAX))
+
+	if event.is_action_pressed("toggle_ssao"):
+		set_use_ssao(not use_ssao)
 
 
 func set_gi_mode(p_gi_mode):
@@ -103,12 +123,24 @@ func set_gi_mode(p_gi_mode):
 			$CornerSpotLight.light_bake_mode = Light.BAKE_INDIRECT
 
 
-func set_use_reflection_probe(p_visible):
-	use_reflection_probe = p_visible
+func set_reflection_probe_mode(p_reflection_probe_mode):
+	reflection_probe_mode = p_reflection_probe_mode
+	reflection_probe_mode_label.text = "Reflection probe: %s " % REFLECTION_PROBE_MODE_TEXTS[reflection_probe_mode]
+
+	match p_reflection_probe_mode:
+		ReflectionProbeMode.NONE:
+			reflection_probe.visible = false
+			reflection_probe.update_mode = ReflectionProbe.UPDATE_ONCE
+		ReflectionProbeMode.ONCE:
+			reflection_probe.visible = true
+			reflection_probe.update_mode = ReflectionProbe.UPDATE_ONCE
+		ReflectionProbeMode.ALWAYS:
+			reflection_probe.visible = true
+			reflection_probe.update_mode = ReflectionProbe.UPDATE_ALWAYS
+
 
-	if p_visible:
-		reflection_probe_mode_label.text = "Current reflection probe mode: Enabled - Using reflection probe (Average)"
-	else:
-		reflection_probe_mode_label.text = "Current reflection probe mode: Disabled - Using environment or GIProbe reflections (Fast)"
+func set_use_ssao(p_use_ssao):
+	use_ssao = p_use_ssao
+	reflection_probe_mode_label.text = "Screen-space ambient occlusion: %s" % "Enabled (Slow)" if use_ssao else "Disabled (Fastest)"
 
-	reflection_probe.visible = p_visible
+	environment.ssao_enabled = use_ssao

3d/global_illumination/test.tscn

@@ -84,6 +84,8 @@ data = SubResource( 1 )
 [node name="Sun" type="DirectionalLight" parent="."]
 transform = Transform( 0.889832, -0.251497, 0.380722, 0, 0.834387, 0.551179, -0.456289, -0.490456, 0.742464, 4.47302, 6.47568, 8.72305 )
 shadow_enabled = true
+directional_shadow_normal_bias = 0.1
+directional_shadow_bias_split_scale = 1.0
 directional_shadow_max_distance = 85.0
 
 [node name="GrateOmniLight" type="OmniLight" parent="."]
@@ -133,7 +135,7 @@ material/0 = SubResource( 3 )
 [node name="ReflectionProbe" type="ReflectionProbe" parent="Camera/ReflectiveSphere"]
 transform = Transform( 1, -8.38189e-09, -8.9407e-08, 5.58791e-09, 1, -5.21541e-07, 4.47035e-08, 1.11759e-07, 1, 0, 0, 0 )
 max_distance = 50.0
-extents = Vector3( 10, 10, 10 )
+extents = Vector3( 2, 2, 2 )
 box_projection = true
 enable_shadows = true
 
@@ -152,20 +154,24 @@ margin_left = 16.0
 margin_top = 40.0
 margin_right = 272.0
 margin_bottom = 54.0
-text = "Reflection probe:"
-__meta__ = {
-"_edit_use_anchors_": false
-}
+text = "Disabled - Using environment, VoxelGI or SDFGI reflections (Fastest)"
 
-[node name="Label" type="Label" parent="."]
+[node name="SSAO" type="Label" parent="."]
 margin_left = 16.0
 margin_top = 64.0
-margin_right = 454.0
+margin_right = 455.0
 margin_bottom = 78.0
-text = "Press Space to cycle between GI modes, R to toggle reflection probe
+text = "Screen-space ambient occlusion: Disabled (Fastest)"
+
+[node name="Label" type="Label" parent="."]
+anchor_top = 1.0
+anchor_bottom = 1.0
+margin_left = 16.0
+margin_top = -50.0
+margin_right = 496.0
+margin_bottom = -16.0
+custom_constants/line_spacing = 6
+text = "Press Space to cycle between GI modes, R to cycle reflection probe modes
 Press Esc or F10 to toggle mouse capture"
-__meta__ = {
-"_edit_use_anchors_": false
-}
 
 [editable path="GlowingBox"]