Fix resource leaks in VoxelGI

servers/rendering/renderer_rd/environment/gi.cpp

@@ -1140,6 +1140,7 @@ void GI::SDFGI::erase() {
 
 	RD::get_singleton()->free(lightprobe_data);
 	RD::get_singleton()->free(lightprobe_history_scroll);
+	RD::get_singleton()->free(lightprobe_average_scroll);
 	RD::get_singleton()->free(occlusion_data);
 	RD::get_singleton()->free(ambient_texture);
 
@@ -2427,18 +2428,7 @@ void GI::VoxelGIInstance::update(bool p_update_light_instances, const Vector<RID
 
 	if (last_probe_data_version != data_version) {
 		//need to re-create everything
-		if (texture.is_valid()) {
-			RD::get_singleton()->free(texture);
-			RD::get_singleton()->free(write_buffer);
-			mipmaps.clear();
-		}
-
-		for (int i = 0; i < dynamic_maps.size(); i++) {
-			RD::get_singleton()->free(dynamic_maps[i].texture);
-			RD::get_singleton()->free(dynamic_maps[i].depth);
-		}
-
-		dynamic_maps.clear();
+		free_resources();
 
 		Vector3i octree_size = gi->voxel_gi_get_octree_size(probe);
 
@@ -3130,6 +3120,37 @@ void GI::VoxelGIInstance::update(bool p_update_light_instances, const Vector<RID
 	last_probe_version = gi->voxel_gi_get_version(probe);
 }
 
+void GI::VoxelGIInstance::free_resources() {
+	if (texture.is_valid()) {
+		RD::get_singleton()->free(texture);
+		RD::get_singleton()->free(write_buffer);
+
+		texture = RID();
+		write_buffer = RID();
+		mipmaps.clear();
+	}
+
+	for (int i = 0; i < dynamic_maps.size(); i++) {
+		RD::get_singleton()->free(dynamic_maps[i].texture);
+		RD::get_singleton()->free(dynamic_maps[i].depth);
+
+		// these only exist on the first level...
+		if (dynamic_maps[i].fb_depth.is_valid()) {
+			RD::get_singleton()->free(dynamic_maps[i].fb_depth);
+		}
+		if (dynamic_maps[i].albedo.is_valid()) {
+			RD::get_singleton()->free(dynamic_maps[i].albedo);
+		}
+		if (dynamic_maps[i].normal.is_valid()) {
+			RD::get_singleton()->free(dynamic_maps[i].normal);
+		}
+		if (dynamic_maps[i].orm.is_valid()) {
+			RD::get_singleton()->free(dynamic_maps[i].orm);
+		}
+	}
+	dynamic_maps.clear();
+}
+
 void GI::VoxelGIInstance::debug(RD::DrawListID p_draw_list, RID p_framebuffer, const Projection &p_camera_with_transform, bool p_lighting, bool p_emission, float p_alpha) {
 	RendererRD::MaterialStorage *material_storage = RendererRD::MaterialStorage::get_singleton();
 
@@ -3936,6 +3957,12 @@ RID GI::voxel_gi_instance_create(RID p_base) {
 	return rid;
 }
 
+void GI::voxel_gi_instance_free(RID p_rid) {
+	GI::VoxelGIInstance *voxel_gi = voxel_gi_instance_owner.get_or_null(p_rid);
+	voxel_gi->free_resources();
+	voxel_gi_instance_owner.free(p_rid);
+}
+
 void GI::voxel_gi_instance_set_transform_to_data(RID p_probe, const Transform3D &p_xform) {
 	VoxelGIInstance *voxel_gi = get_probe_instance(p_probe);
 	ERR_FAIL_COND(!voxel_gi);

servers/rendering/renderer_rd/environment/gi.h

@@ -469,6 +469,7 @@ public:
 
 		void update(bool p_update_light_instances, const Vector<RID> &p_light_instances, const PagedArray<RenderGeometryInstance *> &p_dynamic_objects, RendererSceneRenderRD *p_scene_render);
 		void debug(RD::DrawListID p_draw_list, RID p_framebuffer, const Projection &p_camera_with_transform, bool p_lighting, bool p_emission, float p_alpha);
+		void free_resources();
 	};
 
 	mutable RID_Owner<VoxelGIInstance> voxel_gi_instance_owner;
@@ -483,6 +484,12 @@ public:
 		return voxel_gi->texture;
 	};
 
+	bool voxel_gi_instance_owns(RID p_rid) const {
+		return voxel_gi_instance_owner.owns(p_rid);
+	}
+
+	void voxel_gi_instance_free(RID p_rid);
+
 	RS::VoxelGIQuality voxel_gi_quality = RS::VOXEL_GI_QUALITY_LOW;
 
 	/* SDFGI */

servers/rendering/renderer_rd/renderer_scene_render_rd.cpp

@@ -4086,19 +4086,8 @@ bool RendererSceneRenderRD::free(RID p_rid) {
 		decal_instance_owner.free(p_rid);
 	} else if (lightmap_instance_owner.owns(p_rid)) {
 		lightmap_instance_owner.free(p_rid);
-	} else if (gi.voxel_gi_instance_owner.owns(p_rid)) {
-		RendererRD::GI::VoxelGIInstance *voxel_gi = gi.voxel_gi_instance_owner.get_or_null(p_rid);
-		if (voxel_gi->texture.is_valid()) {
-			RD::get_singleton()->free(voxel_gi->texture);
-			RD::get_singleton()->free(voxel_gi->write_buffer);
-		}
-
-		for (int i = 0; i < voxel_gi->dynamic_maps.size(); i++) {
-			RD::get_singleton()->free(voxel_gi->dynamic_maps[i].texture);
-			RD::get_singleton()->free(voxel_gi->dynamic_maps[i].depth);
-		}
-
-		gi.voxel_gi_instance_owner.free(p_rid);
+	} else if (gi.voxel_gi_instance_owns(p_rid)) {
+		gi.voxel_gi_instance_free(p_rid);
 	} else if (sky.sky_owner.owns(p_rid)) {
 		sky.update_dirty_skys();
 		sky.free_sky(p_rid);