Automatically update the editor viewport when 3D scaling options are changed

This allows for previewing the effects of the various 3D scaling
project settings without having to restart the editor.

editor/plugins/node_3d_editor_plugin.cpp

@@ -2412,6 +2412,18 @@ void Node3DEditorViewport::_project_settings_changed() {
 
 	const float mesh_lod_threshold = GLOBAL_GET("rendering/mesh_lod/lod_change/threshold_pixels");
 	viewport->set_mesh_lod_threshold(mesh_lod_threshold);
+
+	const Viewport::Scaling3DMode scaling_3d_mode = Viewport::Scaling3DMode(int(GLOBAL_GET("rendering/scaling_3d/mode")));
+	viewport->set_scaling_3d_mode(scaling_3d_mode);
+
+	const float scaling_3d_scale = GLOBAL_GET("rendering/scaling_3d/scale");
+	viewport->set_scaling_3d_scale(scaling_3d_scale);
+
+	const float fsr_sharpness = GLOBAL_GET("rendering/scaling_3d/fsr_sharpness");
+	viewport->set_fsr_sharpness(fsr_sharpness);
+
+	const float fsr_mipmap_bias = GLOBAL_GET("rendering/scaling_3d/fsr_mipmap_bias");
+	viewport->set_fsr_mipmap_bias(fsr_mipmap_bias);
 }
 
 void Node3DEditorViewport::_notification(int p_what) {

servers/rendering_server.cpp

@@ -2934,10 +2934,10 @@ void RenderingServer::init() {
 	ProjectSettings::get_singleton()->set_custom_property_info("rendering/anti_aliasing/screen_space_roughness_limiter/amount", PropertyInfo(Variant::FLOAT, "rendering/anti_aliasing/screen_space_roughness_limiter/amount", PROPERTY_HINT_RANGE, "0.01,4.0,0.01"));
 	ProjectSettings::get_singleton()->set_custom_property_info("rendering/anti_aliasing/screen_space_roughness_limiter/limit", PropertyInfo(Variant::FLOAT, "rendering/anti_aliasing/screen_space_roughness_limiter/limit", PROPERTY_HINT_RANGE, "0.01,1.0,0.01"));
 
-	GLOBAL_DEF_RST("rendering/scaling_3d/mode", 0);
-	GLOBAL_DEF_RST("rendering/scaling_3d/scale", 1.0);
-	GLOBAL_DEF_RST("rendering/scaling_3d/fsr_sharpness", 0.2f);
-	GLOBAL_DEF_RST("rendering/scaling_3d/fsr_mipmap_bias", 0.0f);
+	GLOBAL_DEF("rendering/scaling_3d/mode", 0);
+	GLOBAL_DEF("rendering/scaling_3d/scale", 1.0);
+	GLOBAL_DEF("rendering/scaling_3d/fsr_sharpness", 0.2f);
+	GLOBAL_DEF("rendering/scaling_3d/fsr_mipmap_bias", 0.0f);
 	ProjectSettings::get_singleton()->set_custom_property_info("rendering/scaling_3d/mode",
 			PropertyInfo(Variant::INT,
 					"rendering/scaling_3d/mode",