Fix meshasset not saving card height offset, consolidate density

doc/api/class_terrain3dmeshasset.rst

@@ -36,7 +36,7 @@ Properties
    +-------------------------------------------------+-------------------------------------------------------------------------------+-------------------+
    | GeometryInstance3D.ShadowCastingSetting         | :ref:`cast_shadows<class_Terrain3DMeshAsset_property_cast_shadows>`           | ``1``             |
    +-------------------------------------------------+-------------------------------------------------------------------------------+-------------------+
-   | ``float``                                       | :ref:`density<class_Terrain3DMeshAsset_property_density>`                     | ``-1.0``          |
+   | ``float``                                       | :ref:`density<class_Terrain3DMeshAsset_property_density>`                     | ``10.0``          |
    +-------------------------------------------------+-------------------------------------------------------------------------------+-------------------+
    | ``int``                                         | :ref:`generated_faces<class_Terrain3DMeshAsset_property_generated_faces>`     | ``2``             |
    +-------------------------------------------------+-------------------------------------------------------------------------------+-------------------+
@@ -205,7 +205,7 @@ Tells the renderer how to cast shadows from this mesh asset onto the terrain and
 
 .. rst-class:: classref-property
 
-``float`` **density** = ``-1.0`` :ref:`🔗<class_Terrain3DMeshAsset_property_density>`
+``float`` **density** = ``10.0`` :ref:`🔗<class_Terrain3DMeshAsset_property_density>`
 
 .. rst-class:: classref-property-setget
 

doc/doc_classes/Terrain3DMeshAsset.xml

@@ -41,7 +41,7 @@
 		<member name="cast_shadows" type="int" setter="set_cast_shadows" getter="get_cast_shadows" enum="GeometryInstance3D.ShadowCastingSetting" default="1">
 			Tells the renderer how to cast shadows from this mesh asset onto the terrain and other objects. This sets [code skip-lint]GeometryInstance3D.cast_shadow[/code] on all MultiMeshInstances used by this mesh.
 		</member>
-		<member name="density" type="float" setter="set_density" getter="get_density" default="-1.0">
+		<member name="density" type="float" setter="set_density" getter="get_density" default="10.0">
 			Density is used to set the approximate default spacing between instances based on the size of the mesh. When painting meshes on the terrain, mesh density is multiplied by brush strength.
 			This value is not tied to any real world unit. It is calculated as [code skip-lint]10.f / mesh-&gt;get_aabb().get_volume()[/code], then clamped to a sane range. If the calculated amount is inappropriate, increase or decrease it here.
 		</member>

project/addons/terrain_3d/src/asset_dock.gd

@@ -792,8 +792,8 @@ class ListEntry extends VBoxContainer:
 				var ma := Terrain3DMeshAsset.new()
 				if resource is Terrain3DMeshAsset:
 					ma.id = resource.id
-				ma.set_scene_file(res)
 				set_edited_resource(ma, false)
+				ma.set_scene_file(res)
 				resource = ma
 			elif res is Terrain3DMeshAsset and type == Terrain3DAssets.TYPE_MESH:
 				if resource is Terrain3DMeshAsset:

src/terrain_3d_mesh_asset.cpp

@@ -26,10 +26,6 @@ void Terrain3DMeshAsset::_set_generated_type(const GenType p_type) {
 		LOG(DEBUG, "Generating card mesh");
 		_meshes.push_back(_get_generated_mesh());
 		_set_material_override(_get_material());
-		_height_offset = 0.5f;
-		_generated_faces = 2;
-		_relative_density = 10.f;
-		_calculated_density = 10.f;
 	}
 }
 
@@ -158,8 +154,7 @@ void Terrain3DMeshAsset::clear() {
 	_cast_shadows = GeometryInstance3D::SHADOW_CASTING_SETTING_ON;
 	_generated_faces = 2.f;
 	_generated_size = Vector2(1.f, 1.f);
-	_relative_density = -1.f;
-	_calculated_density = -1.f;
+	_density = 10.f;
 	_packed_scene.unref();
 	_material_override.unref();
 	_set_generated_type(TYPE_TEXTURE_CARD);
@@ -187,19 +182,7 @@ void Terrain3DMeshAsset::set_height_offset(const real_t p_offset) {
 
 void Terrain3DMeshAsset::set_density(const real_t p_density) {
 	LOG(INFO, "Setting mesh density: ", p_density);
-	if (p_density < 0) {
-		_relative_density = _calculated_density;
-	} else {
-		_relative_density = CLAMP(p_density, 0.01f, 10.f);
-	}
-}
-
-real_t Terrain3DMeshAsset::get_density() const {
-	if (_relative_density > 0) {
-		return _relative_density;
-	} else {
-		return _calculated_density;
-	}
+	_density = CLAMP(p_density, 0.01f, 10.f);
 }
 
 void Terrain3DMeshAsset::set_visibility_range(const real_t p_visibility_range) {
@@ -260,30 +243,33 @@ void Terrain3DMeshAsset::set_scene_file(const Ref<PackedScene> &p_scene_file) {
 		}
 		if (_meshes.size() > 0) {
 			Ref<Mesh> mesh = _meshes[0];
-			_calculated_density = CLAMP(10.f / mesh->get_aabb().get_volume(), 0.01f, 10.0f);
-			_relative_density = _calculated_density;
-			LOG(DEBUG, "Emitting file_changed");
-			emit_signal("file_changed");
+			_density = CLAMP(10.f / mesh->get_aabb().get_volume(), 0.01f, 10.0f);
 		} else {
 			LOG(ERROR, "No MeshInstance3D found in scene file");
 		}
 		notify_property_list_changed();
 	} else {
 		set_generated_type(TYPE_TEXTURE_CARD);
+		_density = 10.f;
 	}
+	LOG(DEBUG, "Emitting file_changed");
+	emit_signal("file_changed");
+	emit_signal("instancer_setting_changed");
 }
 
 void Terrain3DMeshAsset::set_material_override(const Ref<Material> &p_material) {
 	_set_material_override(p_material);
 	LOG(DEBUG, "Emitting setting_changed");
 	emit_signal("setting_changed");
+	emit_signal("instancer_setting_changed");
 }
 
 void Terrain3DMeshAsset::set_generated_type(const GenType p_type) {
 	_set_generated_type(p_type);
 	LOG(DEBUG, "Emitting file_changed");
 	notify_property_list_changed();
 	emit_signal("file_changed");
+	emit_signal("instancer_setting_changed");
 }
 
 void Terrain3DMeshAsset::set_generated_faces(const int p_count) {
@@ -295,6 +281,7 @@ void Terrain3DMeshAsset::set_generated_faces(const int p_count) {
 			_set_material_override(_get_material());
 			LOG(DEBUG, "Emitting setting_changed");
 			emit_signal("setting_changed");
+			emit_signal("instancer_setting_changed");
 		}
 	}
 }
@@ -308,6 +295,7 @@ void Terrain3DMeshAsset::set_generated_size(const Vector2 &p_size) {
 			_set_material_override(_get_material());
 			LOG(DEBUG, "Emitting setting_changed");
 			emit_signal("setting_changed");
+			emit_signal("instancer_setting_changed");
 		}
 	}
 }

src/terrain_3d_mesh_asset.h

@@ -37,8 +37,7 @@ class Terrain3DMeshAsset : public Terrain3DAssetResource {
 	Vector2 _generated_size = Vector2(1.f, 1.f);
 	Ref<PackedScene> _packed_scene;
 	Ref<Material> _material_override;
-	real_t _relative_density = -1.f;
-	real_t _calculated_density = -1.f;
+	real_t _density = 10.f;
 
 	// Working data
 	TypedArray<Mesh> _meshes;
@@ -65,7 +64,7 @@ class Terrain3DMeshAsset : public Terrain3DAssetResource {
 	void set_height_offset(const real_t p_offset);
 	real_t get_height_offset() const { return _height_offset; }
 	void set_density(const real_t p_density);
-	real_t get_density() const;
+	real_t get_density() const { return _density; }
 
 	void set_visibility_range(const real_t p_visibility_range);
 	real_t get_visibility_range() const { return _visibility_range; };