Optionally scale 3D render content

2 files changed, 39 insertions, 0 deletions

diff --git a/scene/main/viewport.cpp b/scene/main/viewport.cpp
index ea2323c651..801c7cf86e 100644
--- a/scene/main/viewport.cpp
+++ b/scene/main/viewport.cpp
@@ -3451,6 +3451,17 @@ void Viewport::set_use_xr(bool p_use_xr) {
 bool Viewport::is_using_xr() {
 	return use_xr;
 }
+
+void Viewport::set_scale_3d(const Scale3D p_scale_3d) {
+	scale_3d = p_scale_3d;
+
+	RS::get_singleton()->viewport_set_scale_3d(viewport, RS::ViewportScale3D(scale_3d));
+}
+
+Viewport::Scale3D Viewport::get_scale_3d() const {
+	return scale_3d;
+}
+
 #endif // _3D_DISABLED
 
 void Viewport::_bind_methods() {
@@ -3575,8 +3586,12 @@ void Viewport::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("set_use_xr", "use"), &Viewport::set_use_xr);
 	ClassDB::bind_method(D_METHOD("is_using_xr"), &Viewport::is_using_xr);
 
+	ClassDB::bind_method(D_METHOD("set_scale_3d", "scale"), &Viewport::set_scale_3d);
+	ClassDB::bind_method(D_METHOD("get_scale_3d"), &Viewport::get_scale_3d);
+
 	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "disable_3d"), "set_disable_3d", "is_3d_disabled");
 	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "use_xr"), "set_use_xr", "is_using_xr");
+	ADD_PROPERTY(PropertyInfo(Variant::INT, "scale_3d", PROPERTY_HINT_ENUM, String::utf8("Disabled,75%,50%,33%,25%")), "set_scale_3d", "get_scale_3d");
 	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "audio_listener_enable_3d"), "set_as_audio_listener_3d", "is_audio_listener_3d");
 	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "own_world_3d"), "set_use_own_world_3d", "is_using_own_world_3d");
 	ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "world_3d", PROPERTY_HINT_RESOURCE_TYPE, "World3D"), "set_world_3d", "get_world_3d");
@@ -3620,6 +3635,12 @@ void Viewport::_bind_methods() {
 	ADD_SIGNAL(MethodInfo("size_changed"));
 	ADD_SIGNAL(MethodInfo("gui_focus_changed", PropertyInfo(Variant::OBJECT, "node", PROPERTY_HINT_RESOURCE_TYPE, "Control")));
 
+	BIND_ENUM_CONSTANT(SCALE_3D_DISABLED);
+	BIND_ENUM_CONSTANT(SCALE_3D_75_PERCENT);
+	BIND_ENUM_CONSTANT(SCALE_3D_50_PERCENT);
+	BIND_ENUM_CONSTANT(SCALE_3D_33_PERCENT);
+	BIND_ENUM_CONSTANT(SCALE_3D_25_PERCENT);
+
 	BIND_ENUM_CONSTANT(SHADOW_ATLAS_QUADRANT_SUBDIV_DISABLED);
 	BIND_ENUM_CONSTANT(SHADOW_ATLAS_QUADRANT_SUBDIV_1);
 	BIND_ENUM_CONSTANT(SHADOW_ATLAS_QUADRANT_SUBDIV_4);
@@ -3734,6 +3755,11 @@ Viewport::Viewport() {
 	gui.tooltip_delay = GLOBAL_DEF("gui/timers/tooltip_delay_sec", 0.5);
 	ProjectSettings::get_singleton()->set_custom_property_info("gui/timers/tooltip_delay_sec", PropertyInfo(Variant::FLOAT, "gui/timers/tooltip_delay_sec", PROPERTY_HINT_RANGE, "0,5,0.01,or_greater")); // No negative numbers
 
+#ifndef _3D_DISABLED
+	int scale = GLOBAL_GET("rendering/3d/viewport/scale");
+	set_scale_3d((Scale3D)scale);
+#endif // _3D_DISABLED
+
 	set_sdf_oversize(sdf_oversize); //set to server
 }
 
diff --git a/scene/main/viewport.h b/scene/main/viewport.h
index b24de77e6b..d9b21ce6a8 100644
--- a/scene/main/viewport.h
+++ b/scene/main/viewport.h
@@ -88,6 +88,14 @@ class Viewport : public Node {
 	GDCLASS(Viewport, Node);
 
 public:
+	enum Scale3D {
+		SCALE_3D_DISABLED,
+		SCALE_3D_75_PERCENT,
+		SCALE_3D_50_PERCENT,
+		SCALE_3D_33_PERCENT,
+		SCALE_3D_25_PERCENT
+	};
+
 	enum ShadowAtlasQuadrantSubdiv {
 		SHADOW_ATLAS_QUADRANT_SUBDIV_DISABLED,
 		SHADOW_ATLAS_QUADRANT_SUBDIV_1,
@@ -577,6 +585,7 @@ public:
 
 #ifndef _3D_DISABLED
 	bool use_xr = false;
+	Scale3D scale_3d = SCALE_3D_DISABLED;
 	friend class Listener3D;
 	Listener3D *listener_3d = nullptr;
 	Set<Listener3D *> listener_3d_set;
@@ -647,6 +656,9 @@ public:
 
 	void set_use_xr(bool p_use_xr);
 	bool is_using_xr();
+
+	void set_scale_3d(const Scale3D p_scale_3d);
+	Scale3D get_scale_3d() const;
 #endif // _3D_DISABLED
 
 	Viewport();
@@ -705,6 +717,7 @@ VARIANT_ENUM_CAST(SubViewport::UpdateMode);
 VARIANT_ENUM_CAST(Viewport::ShadowAtlasQuadrantSubdiv);
 VARIANT_ENUM_CAST(Viewport::MSAA);
 VARIANT_ENUM_CAST(Viewport::ScreenSpaceAA);
+VARIANT_ENUM_CAST(Viewport::Scale3D);
 VARIANT_ENUM_CAST(Viewport::DebugDraw);
 VARIANT_ENUM_CAST(Viewport::SDFScale);
 VARIANT_ENUM_CAST(Viewport::SDFOversize);