4 files changed, 101 insertions, 1 deletions
diff --git a/scene/main/viewport.cpp b/scene/main/viewport.cpp
index cdf1f495e4..adbc2eb719 100644
--- a/scene/main/viewport.cpp
+++ b/scene/main/viewport.cpp
@@ -3682,6 +3682,7 @@ void Viewport::_bind_methods() {
 	BIND_ENUM_CONSTANT(DEBUG_DRAW_DIRECTIONAL_SHADOW_ATLAS);
 	BIND_ENUM_CONSTANT(DEBUG_DRAW_SCENE_LUMINANCE);
 	BIND_ENUM_CONSTANT(DEBUG_DRAW_SSAO);
+	BIND_ENUM_CONSTANT(DEBUG_DRAW_SSIL);
 	BIND_ENUM_CONSTANT(DEBUG_DRAW_PSSM_SPLITS);
 	BIND_ENUM_CONSTANT(DEBUG_DRAW_DECAL_ATLAS);
 	BIND_ENUM_CONSTANT(DEBUG_DRAW_SDFGI);
diff --git a/scene/main/viewport.h b/scene/main/viewport.h
index 1f19ff04c9..ae00928dc5 100644
--- a/scene/main/viewport.h
+++ b/scene/main/viewport.h
@@ -142,6 +142,7 @@ public:
 		DEBUG_DRAW_DIRECTIONAL_SHADOW_ATLAS,
 		DEBUG_DRAW_SCENE_LUMINANCE,
 		DEBUG_DRAW_SSAO,
+		DEBUG_DRAW_SSIL,
 		DEBUG_DRAW_PSSM_SPLITS,
 		DEBUG_DRAW_DECAL_ATLAS,
 		DEBUG_DRAW_SDFGI,
diff --git a/scene/resources/environment.cpp b/scene/resources/environment.cpp
index 9f8e89564d..1f4dc1daf5 100644
--- a/scene/resources/environment.cpp
+++ b/scene/resources/environment.cpp
@@ -426,6 +426,64 @@ void Environment::_update_ssao() {
 			ssao_ao_channel_affect);
 }
 
+// SSIL
+
+void Environment::set_ssil_enabled(bool p_enabled) {
+	ssil_enabled = p_enabled;
+	_update_ssil();
+	notify_property_list_changed();
+}
+
+bool Environment::is_ssil_enabled() const {
+	return ssil_enabled;
+}
+
+void Environment::set_ssil_radius(float p_radius) {
+	ssil_radius = p_radius;
+	_update_ssil();
+}
+
+float Environment::get_ssil_radius() const {
+	return ssil_radius;
+}
+
+void Environment::set_ssil_intensity(float p_intensity) {
+	ssil_intensity = p_intensity;
+	_update_ssil();
+}
+
+float Environment::get_ssil_intensity() const {
+	return ssil_intensity;
+}
+
+void Environment::set_ssil_sharpness(float p_sharpness) {
+	ssil_sharpness = p_sharpness;
+	_update_ssil();
+}
+
+float Environment::get_ssil_sharpness() const {
+	return ssil_sharpness;
+}
+
+void Environment::set_ssil_normal_rejection(float p_normal_rejection) {
+	ssil_normal_rejection = p_normal_rejection;
+	_update_ssil();
+}
+
+float Environment::get_ssil_normal_rejection() const {
+	return ssil_normal_rejection;
+}
+
+void Environment::_update_ssil() {
+	RS::get_singleton()->environment_set_ssil(
+			environment,
+			ssil_enabled,
+			ssil_radius,
+			ssil_intensity,
+			ssil_sharpness,
+			ssil_normal_rejection);
+}
+
 // SDFGI
 
 void Environment::set_sdfgi_enabled(bool p_enabled) {
@@ -1164,7 +1222,6 @@ void Environment::_bind_methods() {
 	ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "ss_reflections_depth_tolerance", PROPERTY_HINT_RANGE, "0.01,128,0.1"), "set_ssr_depth_tolerance", "get_ssr_depth_tolerance");
 
 	// SSAO
-
 	ClassDB::bind_method(D_METHOD("set_ssao_enabled", "enabled"), &Environment::set_ssao_enabled);
 	ClassDB::bind_method(D_METHOD("is_ssao_enabled"), &Environment::is_ssao_enabled);
 	ClassDB::bind_method(D_METHOD("set_ssao_radius", "radius"), &Environment::set_ssao_radius);
@@ -1195,6 +1252,25 @@ void Environment::_bind_methods() {
 	ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "ssao_light_affect", PROPERTY_HINT_RANGE, "0.00,1,0.01"), "set_ssao_direct_light_affect", "get_ssao_direct_light_affect");
 	ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "ssao_ao_channel_affect", PROPERTY_HINT_RANGE, "0.00,1,0.01"), "set_ssao_ao_channel_affect", "get_ssao_ao_channel_affect");
 
+	// SSIL
+	ClassDB::bind_method(D_METHOD("set_ssil_enabled", "enabled"), &Environment::set_ssil_enabled);
+	ClassDB::bind_method(D_METHOD("is_ssil_enabled"), &Environment::is_ssil_enabled);
+	ClassDB::bind_method(D_METHOD("set_ssil_radius", "radius"), &Environment::set_ssil_radius);
+	ClassDB::bind_method(D_METHOD("get_ssil_radius"), &Environment::get_ssil_radius);
+	ClassDB::bind_method(D_METHOD("set_ssil_intensity", "intensity"), &Environment::set_ssil_intensity);
+	ClassDB::bind_method(D_METHOD("get_ssil_intensity"), &Environment::get_ssil_intensity);
+	ClassDB::bind_method(D_METHOD("set_ssil_sharpness", "sharpness"), &Environment::set_ssil_sharpness);
+	ClassDB::bind_method(D_METHOD("get_ssil_sharpness"), &Environment::get_ssil_sharpness);
+	ClassDB::bind_method(D_METHOD("set_ssil_normal_rejection", "normal_rejection"), &Environment::set_ssil_normal_rejection);
+	ClassDB::bind_method(D_METHOD("get_ssil_normal_rejection"), &Environment::get_ssil_normal_rejection);
+
+	ADD_GROUP("SSIL", "ssil_");
+	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "ssil_enabled"), "set_ssil_enabled", "is_ssil_enabled");
+	ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "ssil_radius", PROPERTY_HINT_RANGE, "0.01,16,0.01,or_greater"), "set_ssil_radius", "get_ssil_radius");
+	ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "ssil_intensity", PROPERTY_HINT_RANGE, "0,16,0.01,or_greater"), "set_ssil_intensity", "get_ssil_intensity");
+	ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "ssil_sharpness", PROPERTY_HINT_RANGE, "0,1,0.01"), "set_ssil_sharpness", "get_ssil_sharpness");
+	ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "ssil_normal_rejection", PROPERTY_HINT_RANGE, "0,1,0.01"), "set_ssil_normal_rejection", "get_ssil_normal_rejection");
+
 	// SDFGI
 
 	ClassDB::bind_method(D_METHOD("set_sdfgi_enabled", "enabled"), &Environment::set_sdfgi_enabled);
@@ -1431,6 +1507,7 @@ Environment::Environment() {
 	_update_tonemap();
 	_update_ssr();
 	_update_ssao();
+	_update_ssil();
 	_update_sdfgi();
 	_update_glow();
 	_update_fog();
diff --git a/scene/resources/environment.h b/scene/resources/environment.h
index 024bef34de..7fcc626f77 100644
--- a/scene/resources/environment.h
+++ b/scene/resources/environment.h
@@ -142,6 +142,15 @@ private:
 	float ssao_ao_channel_affect = 0.0;
 	void _update_ssao();
 
+	// SSIL
+	bool ssil_enabled = false;
+	float ssil_radius = 5.0;
+	float ssil_intensity = 1.0;
+	float ssil_sharpness = 0.98;
+	float ssil_normal_rejection = 1.0;
+
+	void _update_ssil();
+
 	// SDFGI
 	bool sdfgi_enabled = false;
 	SDFGICascades sdfgi_cascades = SDFGI_CASCADES_6;
@@ -296,6 +305,18 @@ public:
 	void set_ssao_ao_channel_affect(float p_ao_channel_affect);
 	float get_ssao_ao_channel_affect() const;
 
+	// SSIL
+	void set_ssil_enabled(bool p_enabled);
+	bool is_ssil_enabled() const;
+	void set_ssil_radius(float p_radius);
+	float get_ssil_radius() const;
+	void set_ssil_intensity(float p_intensity);
+	float get_ssil_intensity() const;
+	void set_ssil_sharpness(float p_sharpness);
+	float get_ssil_sharpness() const;
+	void set_ssil_normal_rejection(float p_normal_rejection);
+	float get_ssil_normal_rejection() const;
+
 	// SDFGI
 	void set_sdfgi_enabled(bool p_enabled);
 	bool is_sdfgi_enabled() const;