Rewrite render code to be more cache and thread friendly.

core/templates/rid.h

@@ -61,6 +61,8 @@ public:
 	_ALWAYS_INLINE_ bool is_valid() const { return _id != 0; }
 	_ALWAYS_INLINE_ bool is_null() const { return _id == 0; }
 
+	_ALWAYS_INLINE_ uint32_t get_local_index() const { return _id & 0xFFFFFFFF; }
+
 	static _ALWAYS_INLINE_ RID from_uint64(uint64_t p_id) {
 		RID _rid;
 		_rid._id = p_id;

servers/rendering/renderer_rd/renderer_scene_render_forward.h

@@ -48,7 +48,8 @@ class RendererSceneRenderForward : public RendererSceneRenderRD {
 	enum {
 		SDFGI_MAX_CASCADES = 8,
 		MAX_GI_PROBES = 8,
-		MAX_LIGHTMAPS = 8
+		MAX_LIGHTMAPS = 8,
+		MAX_GI_PROBES_PER_INSTANCE = 2,
 	};
 
 	/* Scene Shader */
@@ -199,14 +200,6 @@ class RendererSceneRenderForward : public RendererSceneRenderRD {
 		return static_cast<RendererSceneRenderForward *>(singleton)->_create_material_func(static_cast<ShaderData *>(p_shader));
 	}
 
-	/* Push Constant */
-
-	struct PushConstant {
-		uint32_t index;
-		uint32_t pad;
-		float bake_uv2_offset[2];
-	};
-
 	/* Framebuffer */
 
 	struct RenderBufferDataForward : public RenderBufferData {
@@ -294,16 +287,6 @@ class RendererSceneRenderForward : public RendererSceneRenderRD {
 		INSTANCE_DATA_FLAG_SKELETON = 1 << 19,
 	};
 
-	struct InstanceData {
-		float transform[16];
-		float normal_transform[16];
-		uint32_t flags;
-		uint32_t instance_uniforms_ofs; //instance_offset in instancing/skeleton buffer
-		uint32_t gi_offset; //GI information when using lightmapping (VCT or lightmap)
-		uint32_t mask;
-		float lightmap_uv_scale[4];
-	};
-
 	struct SceneState {
 		struct UBO {
 			float projection_matrix[16];
@@ -398,49 +381,197 @@ class RendererSceneRenderForward : public RendererSceneRenderRD {
 		uint32_t max_lightmap_captures;
 		RID lightmap_capture_buffer;
 
-		RID instance_buffer;
-		InstanceData *instances;
-		uint32_t max_instances;
+		RID giprobe_ids[MAX_GI_PROBES];
+		uint32_t giprobes_used = 0;
 
 		bool used_screen_texture = false;
 		bool used_normal_texture = false;
 		bool used_depth_texture = false;
 		bool used_sss = false;
-		uint32_t current_shader_index = 0;
-		uint32_t current_material_index = 0;
 
 	} scene_state;
 
-	/* Render List */
+	static RendererSceneRenderForward *singleton;
+	uint64_t render_pass;
+	double time;
+	RID default_shader;
+	RID default_material;
+	RID overdraw_material_shader;
+	RID overdraw_material;
+	RID wireframe_material_shader;
+	RID wireframe_material;
+	RID default_shader_rd;
+	RID default_shader_sdfgi_rd;
+
+	RID default_vec4_xform_buffer;
+	RID default_vec4_xform_uniform_set;
+
+	enum PassMode {
+		PASS_MODE_COLOR,
+		PASS_MODE_COLOR_SPECULAR,
+		PASS_MODE_COLOR_TRANSPARENT,
+		PASS_MODE_SHADOW,
+		PASS_MODE_SHADOW_DP,
+		PASS_MODE_DEPTH,
+		PASS_MODE_DEPTH_NORMAL_ROUGHNESS,
+		PASS_MODE_DEPTH_NORMAL_ROUGHNESS_GIPROBE,
+		PASS_MODE_DEPTH_MATERIAL,
+		PASS_MODE_SDF,
+	};
 
+	void _setup_environment(RID p_environment, RID p_render_buffers, const CameraMatrix &p_cam_projection, const Transform &p_cam_transform, RID p_reflection_probe, bool p_no_fog, const Size2 &p_screen_pixel_size, RID p_shadow_atlas, bool p_flip_y, const Color &p_default_bg_color, float p_znear, float p_zfar, bool p_opaque_render_buffers = false, bool p_pancake_shadows = false);
+	void _setup_giprobes(const PagedArray<RID> &p_giprobes);
+	void _setup_lightmaps(const PagedArray<RID> &p_lightmaps, const Transform &p_cam_transform);
+
+	struct GeometryInstanceSurfaceDataCache;
+
+	template <PassMode p_pass_mode>
+	_FORCE_INLINE_ void _render_list_template(RenderingDevice::DrawListID p_draw_list, RenderingDevice::FramebufferFormatID p_framebuffer_Format, GeometryInstanceSurfaceDataCache **p_elements, int p_element_count, bool p_reverse_cull, bool p_no_gi, RID p_render_pass_uniform_set, bool p_force_wireframe = false, const Vector2 &p_uv_offset = Vector2(), const Plane &p_lod_plane = Plane(), float p_lod_distance_multiplier = 0.0, float p_screen_lod_threshold = 0.0);
+
+	void _render_list(RenderingDevice::DrawListID p_draw_list, RenderingDevice::FramebufferFormatID p_framebuffer_Format, GeometryInstanceSurfaceDataCache **p_elements, int p_element_count, bool p_reverse_cull, PassMode p_pass_mode, bool p_no_gi, RID p_render_pass_uniform_set, bool p_force_wireframe = false, const Vector2 &p_uv_offset = Vector2(), const Plane &p_lod_plane = Plane(), float p_lod_distance_multiplier = 0.0, float p_screen_lod_threshold = 0.0);
+
+	void _fill_render_list(const PagedArray<GeometryInstance *> &p_instances, PassMode p_pass_mode, const CameraMatrix &p_cam_projection, const Transform &p_cam_transform, bool p_using_sdfgi = false, bool p_using_opaque_gi = false);
+
+	Map<Size2i, RID> sdfgi_framebuffer_size_cache;
+
+	struct GeometryInstanceData;
 	struct GeometryInstanceForward;
 
-	struct RenderList {
-		int max_elements;
+	struct GeometryInstanceLightmapSH {
+		Color sh[9];
+	};
 
-		struct Element {
-			GeometryInstanceForward *instance;
-			MaterialData *material;
-			union {
-				struct {
-					//from least significant to most significant in sort, TODO: should be endian swapped on big endian
-					uint64_t geometry_index : 20;
-					uint64_t material_index : 15;
-					uint64_t shader_index : 12;
-					uint64_t uses_instancing : 1;
-					uint64_t uses_forward_gi : 1;
-					uint64_t uses_lightmap : 1;
-					uint64_t depth_layer : 4;
-					uint64_t priority : 8;
-				};
-
-				uint64_t sort_key;
+	// Cached data for drawing surfaces
+	struct GeometryInstanceSurfaceDataCache {
+		enum {
+			FLAG_PASS_DEPTH = 1,
+			FLAG_PASS_OPAQUE = 2,
+			FLAG_PASS_ALPHA = 4,
+			FLAG_PASS_SHADOW = 8,
+			FLAG_USES_SHARED_SHADOW_MATERIAL = 128,
+			FLAG_USES_SUBSURFACE_SCATTERING = 2048,
+			FLAG_USES_SCREEN_TEXTURE = 4096,
+			FLAG_USES_DEPTH_TEXTURE = 8192,
+			FLAG_USES_NORMAL_TEXTURE = 16384,
+			FLAG_USES_DOUBLE_SIDED_SHADOWS = 32768,
+		};
+
+		union {
+			struct {
+				uint32_t geometry_id;
+				uint32_t material_id;
+				uint32_t shader_id;
+				uint32_t surface_type : 4;
+				uint32_t uses_forward_gi : 1; //set during addition
+				uint32_t uses_lightmap : 1; //set during addition
+				uint32_t depth_layer : 4; //set during addition
+				uint32_t priority : 8;
 			};
-			uint32_t surface_index;
+			struct {
+				uint64_t sort_key1;
+				uint64_t sort_key2;
+			};
+		} sort;
+
+		RS::PrimitiveType primitive = RS::PRIMITIVE_MAX;
+		uint32_t flags = 0;
+		uint32_t surface_index = 0;
+
+		void *surface = nullptr;
+		RID material_uniform_set;
+		ShaderData *shader = nullptr;
+
+		void *surface_shadow = nullptr;
+		RID material_uniform_set_shadow;
+		ShaderData *shader_shadow = nullptr;
+
+		GeometryInstanceSurfaceDataCache *next = nullptr;
+		GeometryInstanceForward *owner = nullptr;
+	};
+
+	struct GeometryInstanceForward : public GeometryInstance {
+		//used during rendering
+		bool mirror = false;
+		bool non_uniform_scale = false;
+		float lod_bias = 0.0;
+		float lod_model_scale = 1.0;
+		AABB transformed_aabb; //needed for LOD
+		float depth = 0;
+		struct PushConstant {
+			float transform[16];
+			uint32_t flags;
+			uint32_t instance_uniforms_ofs; //base offset in global buffer for instance variables
+			uint32_t gi_offset; //GI information when using lightmapping (VCT or lightmap index)
+			uint32_t layer_mask;
+			float lightmap_uv_scale[4];
+		} push_constant;
+		RID transforms_uniform_set;
+		uint32_t instance_count = 0;
+		RID mesh_instance;
+		bool can_sdfgi = false;
+		//used during setup
+		uint32_t base_flags = 0;
+		RID gi_probes[MAX_GI_PROBES_PER_INSTANCE];
+		RID lightmap_instance;
+		GeometryInstanceLightmapSH *lightmap_sh = nullptr;
+		GeometryInstanceSurfaceDataCache *surface_caches = nullptr;
+		SelfList<GeometryInstanceForward> dirty_list_element;
+
+		struct Data {
+			//data used less often goes into regular heap
+			RID base;
+			RS::InstanceType base_type;
+
+			RID skeleton;
+
+			uint32_t layer_mask = 1;
+
+			Vector<RID> surface_materials;
+			RID material_override;
+			Transform transform;
+			AABB aabb;
+			int32_t shader_parameters_offset = -1;
+
+			bool use_dynamic_gi = false;
+			bool use_baked_light = false;
+			bool cast_double_sided_shaodows = false;
+			bool mirror = false;
+			Rect2 lightmap_uv_scale;
+			uint32_t lightmap_slice_index = 0;
+			bool dirty_dependencies = false;
+
+			RendererStorage::DependencyTracker dependency_tracker;
 		};
 
-		Element *base_elements;
-		Element **elements;
+		Data *data = nullptr;
+
+		GeometryInstanceForward() :
+				dirty_list_element(this) {}
+	};
+
+	static void _geometry_instance_dependency_changed(RendererStorage::DependencyChangedNotification p_notification, RendererStorage::DependencyTracker *p_tracker);
+	static void _geometry_instance_dependency_deleted(const RID &p_dependency, RendererStorage::DependencyTracker *p_tracker);
+
+	SelfList<GeometryInstanceForward>::List geometry_instance_dirty_list;
+
+	PagedAllocator<GeometryInstanceForward> geometry_instance_alloc;
+	PagedAllocator<GeometryInstanceSurfaceDataCache> geometry_instance_surface_alloc;
+	PagedAllocator<GeometryInstanceLightmapSH> geometry_instance_lightmap_sh;
+
+	void _geometry_instance_add_surface_with_material(GeometryInstanceForward *ginstance, uint32_t p_surface, MaterialData *p_material, uint32_t p_material_id, uint32_t p_shader_id, RID p_mesh);
+	void _geometry_instance_add_surface(GeometryInstanceForward *ginstance, uint32_t p_surface, RID p_material, RID p_mesh);
+	void _geometry_instance_mark_dirty(GeometryInstance *p_geometry_instance);
+	void _geometry_instance_update(GeometryInstance *p_geometry_instance);
+	void _update_dirty_geometry_instances();
+
+	bool low_end = false;
+
+	/* Render List */
+
+	struct RenderList {
+		int max_elements;
+
+		GeometryInstanceSurfaceDataCache **elements = nullptr;
 
 		int element_count;
 		int alpha_element_count;
@@ -453,13 +584,13 @@ class RendererSceneRenderForward : public RendererSceneRenderRD {
 		//should eventually be replaced by radix
 
 		struct SortByKey {
-			_FORCE_INLINE_ bool operator()(const Element *A, const Element *B) const {
-				return A->sort_key < B->sort_key;
+			_FORCE_INLINE_ bool operator()(const GeometryInstanceSurfaceDataCache *A, const GeometryInstanceSurfaceDataCache *B) const {
+				return (A->sort.sort_key2 == B->sort.sort_key2) ? (A->sort.sort_key1 < B->sort.sort_key1) : (A->sort.sort_key2 < B->sort.sort_key2);
 			}
 		};
 
 		void sort_by_key(bool p_alpha) {
-			SortArray<Element *, SortByKey> sorter;
+			SortArray<GeometryInstanceSurfaceDataCache *, SortByKey> sorter;
 			if (p_alpha) {
 				sorter.sort(&elements[max_elements - alpha_element_count], alpha_element_count);
 			} else {
@@ -468,14 +599,14 @@ class RendererSceneRenderForward : public RendererSceneRenderRD {
 		}
 
 		struct SortByDepth {
-			_FORCE_INLINE_ bool operator()(const Element *A, const Element *B) const {
-				return A->instance->depth < B->instance->depth;
+			_FORCE_INLINE_ bool operator()(const GeometryInstanceSurfaceDataCache *A, const GeometryInstanceSurfaceDataCache *B) const {
+				return (A->owner->depth < B->owner->depth);
 			}
 		};
 
 		void sort_by_depth(bool p_alpha) { //used for shadows
 
-			SortArray<Element *, SortByDepth> sorter;
+			SortArray<GeometryInstanceSurfaceDataCache *, SortByDepth> sorter;
 			if (p_alpha) {
 				sorter.sort(&elements[max_elements - alpha_element_count], alpha_element_count);
 			} else {
@@ -484,20 +615,14 @@ class RendererSceneRenderForward : public RendererSceneRenderRD {
 		}
 
 		struct SortByReverseDepthAndPriority {
-			_FORCE_INLINE_ bool operator()(const Element *A, const Element *B) const {
-				uint32_t layer_A = uint32_t(A->priority);
-				uint32_t layer_B = uint32_t(B->priority);
-				if (layer_A == layer_B) {
-					return A->instance->depth > B->instance->depth;
-				} else {
-					return layer_A < layer_B;
-				}
+			_FORCE_INLINE_ bool operator()(const GeometryInstanceSurfaceDataCache *A, const GeometryInstanceSurfaceDataCache *B) const {
+				return (A->sort.priority == B->sort.priority) ? (A->owner->depth > B->owner->depth) : (A->sort.priority < B->sort.priority);
 			}
 		};
 
 		void sort_by_reverse_depth_and_priority(bool p_alpha) { //used for alpha
 
-			SortArray<Element *, SortByReverseDepthAndPriority> sorter;
+			SortArray<GeometryInstanceSurfaceDataCache *, SortByReverseDepthAndPriority> sorter;
 			if (p_alpha) {
 				sorter.sort(&elements[max_elements - alpha_element_count], alpha_element_count);
 			} else {
@@ -505,32 +630,27 @@ class RendererSceneRenderForward : public RendererSceneRenderRD {
 			}
 		}
 
-		_FORCE_INLINE_ Element *add_element() {
+		_FORCE_INLINE_ void add_element(GeometryInstanceSurfaceDataCache *p_element) {
 			if (element_count + alpha_element_count >= max_elements) {
-				return nullptr;
+				return;
 			}
-			elements[element_count] = &base_elements[element_count];
-			return elements[element_count++];
+			elements[element_count] = p_element;
+			element_count++;
 		}
 
-		_FORCE_INLINE_ Element *add_alpha_element() {
+		_FORCE_INLINE_ void add_alpha_element(GeometryInstanceSurfaceDataCache *p_element) {
 			if (element_count + alpha_element_count >= max_elements) {
-				return nullptr;
+				return;
 			}
 			int idx = max_elements - alpha_element_count - 1;
-			elements[idx] = &base_elements[idx];
+			elements[idx] = p_element;
 			alpha_element_count++;
-			return elements[idx];
 		}
 
 		void init() {
 			element_count = 0;
 			alpha_element_count = 0;
-			elements = memnew_arr(Element *, max_elements);
-			base_elements = memnew_arr(Element, max_elements);
-			for (int i = 0; i < max_elements; i++) {
-				elements[i] = &base_elements[i]; // assign elements
-			}
+			elements = memnew_arr(GeometryInstanceSurfaceDataCache *, max_elements);
 		}
 
 		RenderList() {
@@ -539,89 +659,11 @@ class RendererSceneRenderForward : public RendererSceneRenderRD {
 
 		~RenderList() {
 			memdelete_arr(elements);
-			memdelete_arr(base_elements);
 		}
 	};
 
 	RenderList render_list;
 
-	static RendererSceneRenderForward *singleton;
-	uint64_t render_pass;
-	double time;
-	RID default_shader;
-	RID default_material;
-	RID overdraw_material_shader;
-	RID overdraw_material;
-	RID wireframe_material_shader;
-	RID wireframe_material;
-	RID default_shader_rd;
-	RID default_shader_sdfgi_rd;
-
-	RID default_vec4_xform_buffer;
-	RID default_vec4_xform_uniform_set;
-
-	enum PassMode {
-		PASS_MODE_COLOR,
-		PASS_MODE_COLOR_SPECULAR,
-		PASS_MODE_COLOR_TRANSPARENT,
-		PASS_MODE_SHADOW,
-		PASS_MODE_SHADOW_DP,
-		PASS_MODE_DEPTH,
-		PASS_MODE_DEPTH_NORMAL_ROUGHNESS,
-		PASS_MODE_DEPTH_NORMAL_ROUGHNESS_GIPROBE,
-		PASS_MODE_DEPTH_MATERIAL,
-		PASS_MODE_SDF,
-	};
-
-	void _setup_environment(RID p_environment, RID p_render_buffers, const CameraMatrix &p_cam_projection, const Transform &p_cam_transform, RID p_reflection_probe, bool p_no_fog, const Size2 &p_screen_pixel_size, RID p_shadow_atlas, bool p_flip_y, const Color &p_default_bg_color, float p_znear, float p_zfar, bool p_opaque_render_buffers = false, bool p_pancake_shadows = false);
-	void _setup_lightmaps(const PagedArray<RID> &p_lightmaps, const Transform &p_cam_transform);
-
-	void _fill_instances(RenderList::Element **p_elements, int p_element_count, bool p_for_depth, bool p_has_sdfgi = false, bool p_has_opaque_gi = false);
-	void _render_list(RenderingDevice::DrawListID p_draw_list, RenderingDevice::FramebufferFormatID p_framebuffer_Format, RenderList::Element **p_elements, int p_element_count, bool p_reverse_cull, PassMode p_pass_mode, bool p_no_gi, RID p_render_pass_uniform_set, bool p_force_wireframe = false, const Vector2 &p_uv_offset = Vector2(), const Plane &p_lod_plane = Plane(), float p_lod_distance_multiplier = 0.0, float p_screen_lod_threshold = 0.0);
-	_FORCE_INLINE_ void _add_geometry(GeometryInstanceForward *p_instance, uint32_t p_surface, RID p_material, PassMode p_pass_mode, uint32_t p_geometry_index, bool p_using_sdfgi = false);
-	_FORCE_INLINE_ void _add_geometry_with_material(GeometryInstanceForward *p_instance, uint32_t p_surface, MaterialData *p_material, RID p_material_rid, PassMode p_pass_mode, uint32_t p_geometry_index, bool p_using_sdfgi = false);
-
-	void _fill_render_list(const PagedArray<GeometryInstance *> &p_instances, PassMode p_pass_mode, const CameraMatrix &p_cam_projection, const Transform &p_cam_transform, bool p_using_sdfgi = false);
-
-	Map<Size2i, RID> sdfgi_framebuffer_size_cache;
-
-	struct GeometryInstanceForward : public GeometryInstance {
-		RID base;
-		RS::InstanceType base_type;
-
-		RID skeleton;
-		RID mesh_instance;
-
-		uint32_t layer_mask = 1;
-
-		float depth = 0;
-		int depth_layer = 0;
-
-		RID gi_probe_instances[MAX_GI_PROBES];
-		uint32_t gi_probe_instance_count = 0;
-
-		Vector<RID> surface_materials;
-		RID material_override;
-		Transform transform;
-		AABB aabb;
-		AABB transformed_aabb;
-		float lod_bias = 0.0;
-		int32_t shader_parameters_offset = -1;
-
-		bool use_dynamic_gi = false;
-		bool use_baked_light = false;
-		bool cast_double_sided_shaodows = false;
-		bool mirror = false;
-		RID lightmap_instance;
-		Rect2 lightmap_uv_scale;
-		uint32_t lightmap_slice_index = 0;
-		Color *lightmap_sh = nullptr;
-	};
-
-	PagedAllocator<GeometryInstanceForward> geometry_instance_alloc;
-
-	bool low_end = false;
-
 protected:
 	virtual void _render_scene(RID p_render_buffer, const Transform &p_cam_transform, const CameraMatrix &p_cam_projection, bool p_cam_ortogonal, const PagedArray<GeometryInstance *> &p_instances, int p_directional_light_count, const PagedArray<RID> &p_gi_probes, const PagedArray<RID> &p_lightmaps, RID p_environment, RID p_camera_effects, RID p_shadow_atlas, RID p_reflection_atlas, RID p_reflection_probe, int p_reflection_probe_pass, const Color &p_default_bg_color, float p_lod_threshold);
 	virtual void _render_shadow(RID p_framebuffer, const PagedArray<GeometryInstance *> &p_instances, const CameraMatrix &p_projection, const Transform &p_transform, float p_zfar, float p_bias, float p_normal_bias, bool p_use_dp, bool p_use_dp_flip, bool p_use_pancake, const Plane &p_camera_plane = Plane(), float p_lod_distance_multiplier = 0.0, float p_screen_lod_threshold = 0.0);

servers/rendering/renderer_rd/renderer_scene_render_rd.h

@@ -1836,6 +1836,10 @@ public:
 
 	virtual RID lightmap_instance_create(RID p_lightmap);
 	virtual void lightmap_instance_set_transform(RID p_lightmap, const Transform &p_transform);
+	_FORCE_INLINE_ bool lightmap_instance_is_valid(RID p_lightmap_instance) {
+		return lightmap_instance_owner.getornull(p_lightmap_instance) != nullptr;
+	}
+
 	_FORCE_INLINE_ RID lightmap_instance_get_lightmap(RID p_lightmap_instance) {
 		LightmapInstance *li = lightmap_instance_owner.getornull(p_lightmap_instance);
 		return li->lightmap;

servers/rendering/renderer_rd/renderer_storage_rd.cpp

@@ -1438,7 +1438,7 @@ void RendererStorageRD::shader_set_code(RID p_shader, const String &p_code) {
 
 	for (Set<Material *>::Element *E = shader->owners.front(); E; E = E->next()) {
 		Material *material = E->get();
-		material->instance_dependency.instance_notify_changed(false, true);
+		material->dependency.changed_notify(DEPENDENCY_CHANGED_MATERIAL);
 		_material_queue_update(material, true, true);
 	}
 }
@@ -1547,7 +1547,8 @@ void RendererStorageRD::material_set_shader(RID p_material, RID p_shader) {
 	}
 
 	if (p_shader.is_null()) {
-		material->instance_dependency.instance_notify_changed(false, true);
+		material->dependency.changed_notify(DEPENDENCY_CHANGED_MATERIAL);
+		material->shader_id = 0;
 		return;
 	}
 
@@ -1555,6 +1556,7 @@ void RendererStorageRD::material_set_shader(RID p_material, RID p_shader) {
 	ERR_FAIL_COND(!shader);
 	material->shader = shader;
 	material->shader_type = shader->type;
+	material->shader_id = p_shader.get_local_index();
 	shader->owners.insert(material);
 
 	if (shader->type == SHADER_TYPE_MAX) {
@@ -1568,7 +1570,7 @@ void RendererStorageRD::material_set_shader(RID p_material, RID p_shader) {
 	material->data->set_next_pass(material->next_pass);
 	material->data->set_render_priority(material->priority);
 	//updating happens later
-	material->instance_dependency.instance_notify_changed(false, true);
+	material->dependency.changed_notify(DEPENDENCY_CHANGED_MATERIAL);
 	_material_queue_update(material, true, true);
 }
 
@@ -1613,7 +1615,7 @@ void RendererStorageRD::material_set_next_pass(RID p_material, RID p_next_materi
 		material->data->set_next_pass(p_next_material);
 	}
 
-	material->instance_dependency.instance_notify_changed(false, true);
+	material->dependency.changed_notify(DEPENDENCY_CHANGED_MATERIAL);
 }
 
 void RendererStorageRD::material_set_render_priority(RID p_material, int priority) {
@@ -1663,10 +1665,10 @@ void RendererStorageRD::material_get_instance_shader_parameters(RID p_material,
 	}
 }
 
-void RendererStorageRD::material_update_dependency(RID p_material, InstanceBaseDependency *p_instance) {
+void RendererStorageRD::material_update_dependency(RID p_material, DependencyTracker *p_instance) {
 	Material *material = material_owner.getornull(p_material);
 	ERR_FAIL_COND(!material);
-	p_instance->update_dependency(&material->instance_dependency);
+	p_instance->update_dependency(&material->dependency);
 	if (material->next_pass.is_valid()) {
 		material_update_dependency(material->next_pass, p_instance);
 	}
@@ -2596,7 +2598,7 @@ void RendererStorageRD::mesh_add_surface(RID p_mesh, const RS::SurfaceData &p_su
 		_mesh_instance_add_surface(mi, mesh, mesh->surface_count - 1);
 	}
 
-	mesh->instance_dependency.instance_notify_changed(true, true);
+	mesh->dependency.changed_notify(DEPENDENCY_CHANGED_MESH);
 
 	mesh->material_cache.clear();
 }
@@ -2638,7 +2640,7 @@ void RendererStorageRD::mesh_surface_set_material(RID p_mesh, int p_surface, RID
 	ERR_FAIL_UNSIGNED_INDEX((uint32_t)p_surface, mesh->surface_count);
 	mesh->surfaces[p_surface]->material = p_material;
 
-	mesh->instance_dependency.instance_notify_changed(false, true);
+	mesh->dependency.changed_notify(DEPENDENCY_CHANGED_MATERIAL);
 	mesh->material_cache.clear();
 }
 
@@ -2858,8 +2860,8 @@ void RendererStorageRD::mesh_clear(RID p_mesh) {
 		MeshInstance *mi = E->get();
 		_mesh_instance_clear(mi);
 	}
-	mesh->instance_dependency.instance_notify_changed(true, true);
 	mesh->has_bone_weights = false;
+	mesh->dependency.changed_notify(DEPENDENCY_CHANGED_MESH);
 }
 
 bool RendererStorageRD::mesh_needs_instance(RID p_mesh, bool p_has_skeleton) {
@@ -3298,6 +3300,8 @@ void RendererStorageRD::multimesh_allocate(RID p_multimesh, int p_instances, RS:
 	if (multimesh->instances) {
 		multimesh->buffer = RD::get_singleton()->storage_buffer_create(multimesh->instances * multimesh->stride_cache * 4);
 	}
+
+	multimesh->dependency.changed_notify(DEPENDENCY_CHANGED_MULTIMESH);
 }
 
 int RendererStorageRD::multimesh_get_instance_count(RID p_multimesh) const {
@@ -3331,7 +3335,7 @@ void RendererStorageRD::multimesh_set_mesh(RID p_multimesh, RID p_mesh) {
 		}
 	}
 
-	multimesh->instance_dependency.instance_notify_changed(true, true);
+	multimesh->dependency.changed_notify(DEPENDENCY_CHANGED_MESH);
 }
 
 #define MULTIMESH_DIRTY_REGION_SIZE 512
@@ -3690,7 +3694,7 @@ void RendererStorageRD::multimesh_set_buffer(RID p_multimesh, const Vector<float
 		const float *data = p_buffer.ptr();
 
 		_multimesh_re_create_aabb(multimesh, data, multimesh->instances);
-		multimesh->instance_dependency.instance_notify_changed(true, false);
+		multimesh->dependency.changed_notify(DEPENDENCY_CHANGED_AABB);
 	}
 }
 
@@ -3731,6 +3735,8 @@ void RendererStorageRD::multimesh_set_visible_instances(RID p_multimesh, int p_v
 	}
 
 	multimesh->visible_instances = p_visible;
+
+	multimesh->dependency.changed_notify(DEPENDENCY_CHANGED_MULTIMESH_VISIBLE_INSTANCES);
 }
 
 int RendererStorageRD::multimesh_get_visible_instances(RID p_multimesh) const {
@@ -3788,7 +3794,7 @@ void RendererStorageRD::_update_dirty_multimeshes() {
 				//aabb is dirty..
 				_multimesh_re_create_aabb(multimesh, data, visible_instances);
 				multimesh->aabb_dirty = false;
-				multimesh->instance_dependency.instance_notify_changed(true, false);
+				multimesh->dependency.changed_notify(DEPENDENCY_CHANGED_AABB);
 			}
 		}
 
@@ -3926,7 +3932,7 @@ void RendererStorageRD::particles_set_custom_aabb(RID p_particles, const AABB &p
 	Particles *particles = particles_owner.getornull(p_particles);
 	ERR_FAIL_COND(!particles);
 	particles->custom_aabb = p_aabb;
-	particles->instance_dependency.instance_notify_changed(true, false);
+	particles->dependency.changed_notify(DEPENDENCY_CHANGED_AABB);
 }
 
 void RendererStorageRD::particles_set_speed_scale(RID p_particles, float p_scale) {
@@ -4687,7 +4693,7 @@ void RendererStorageRD::update_particles() {
 			RD::get_singleton()->compute_list_end();
 		}
 
-		particles->instance_dependency.instance_notify_changed(true, false); //make sure shadows are updated
+		particles->dependency.changed_notify(DEPENDENCY_CHANGED_AABB);
 	}
 }
 
@@ -4986,7 +4992,7 @@ void RendererStorageRD::particles_collision_set_collision_type(RID p_particles_c
 		particles_collision->heightfield_texture = RID();
 	}
 	particles_collision->type = p_type;
-	particles_collision->instance_dependency.instance_notify_changed(true, false);
+	particles_collision->dependency.changed_notify(DEPENDENCY_CHANGED_AABB);
 }
 
 void RendererStorageRD::particles_collision_set_cull_mask(RID p_particles_collision, uint32_t p_cull_mask) {
@@ -5000,7 +5006,7 @@ void RendererStorageRD::particles_collision_set_sphere_radius(RID p_particles_co
 	ERR_FAIL_COND(!particles_collision);
 
 	particles_collision->radius = p_radius;
-	particles_collision->instance_dependency.instance_notify_changed(true, false);
+	particles_collision->dependency.changed_notify(DEPENDENCY_CHANGED_AABB);
 }
 
 void RendererStorageRD::particles_collision_set_box_extents(RID p_particles_collision, const Vector3 &p_extents) {
@@ -5008,7 +5014,7 @@ void RendererStorageRD::particles_collision_set_box_extents(RID p_particles_coll
 	ERR_FAIL_COND(!particles_collision);
 
 	particles_collision->extents = p_extents;
-	particles_collision->instance_dependency.instance_notify_changed(true, false);
+	particles_collision->dependency.changed_notify(DEPENDENCY_CHANGED_AABB);
 }
 
 void RendererStorageRD::particles_collision_set_attractor_strength(RID p_particles_collision, float p_strength) {
@@ -5042,7 +5048,7 @@ void RendererStorageRD::particles_collision_set_field_texture(RID p_particles_co
 void RendererStorageRD::particles_collision_height_field_update(RID p_particles_collision) {
 	ParticlesCollision *particles_collision = particles_collision_owner.getornull(p_particles_collision);
 	ERR_FAIL_COND(!particles_collision);
-	particles_collision->instance_dependency.instance_notify_changed(true, false);
+	particles_collision->dependency.changed_notify(DEPENDENCY_CHANGED_AABB);
 }
 
 void RendererStorageRD::particles_collision_set_height_field_resolution(RID p_particles_collision, RS::ParticlesCollisionHeightfieldResolution p_resolution) {
@@ -5165,6 +5171,8 @@ void RendererStorageRD::skeleton_allocate(RID p_skeleton, int p_bones, bool p_2d
 			skeleton->uniform_set_mi = RD::get_singleton()->uniform_set_create(uniforms, skeleton_shader.version_shader[0], SkeletonShader::UNIFORM_SET_SKELETON);
 		}
 	}
+
+	skeleton->dependency.changed_notify(DEPENDENCY_CHANGED_SKELETON_DATA);
 }
 
 int RendererStorageRD::skeleton_get_bone_count(RID p_skeleton) const {
@@ -5285,7 +5293,8 @@ void RendererStorageRD::_update_dirty_skeletons() {
 
 		skeleton_dirty_list = skeleton->dirty_list;
 
-		skeleton->instance_dependency.instance_notify_changed(true, false);
+		skeleton->dependency.changed_notify(DEPENDENCY_CHANGED_SKELETON_BONES);
+
 		skeleton->version++;
 
 		skeleton->dirty = false;
@@ -5347,7 +5356,7 @@ void RendererStorageRD::light_set_param(RID p_light, RS::LightParam p_param, flo
 		case RS::LIGHT_PARAM_SHADOW_PANCAKE_SIZE:
 		case RS::LIGHT_PARAM_SHADOW_BIAS: {
 			light->version++;
-			light->instance_dependency.instance_notify_changed(true, false);
+			light->dependency.changed_notify(DEPENDENCY_CHANGED_LIGHT);
 		} break;
 		default: {
 		}
@@ -5362,7 +5371,7 @@ void RendererStorageRD::light_set_shadow(RID p_light, bool p_enabled) {
 	light->shadow = p_enabled;
 
 	light->version++;
-	light->instance_dependency.instance_notify_changed(true, false);
+	light->dependency.changed_notify(DEPENDENCY_CHANGED_LIGHT);
 }
 
 void RendererStorageRD::light_set_shadow_color(RID p_light, const Color &p_color) {
@@ -5404,7 +5413,7 @@ void RendererStorageRD::light_set_cull_mask(RID p_light, uint32_t p_mask) {
 	light->cull_mask = p_mask;
 
 	light->version++;
-	light->instance_dependency.instance_notify_changed(true, false);
+	light->dependency.changed_notify(DEPENDENCY_CHANGED_LIGHT);
 }
 
 void RendererStorageRD::light_set_reverse_cull_face_mode(RID p_light, bool p_enabled) {
@@ -5414,7 +5423,7 @@ void RendererStorageRD::light_set_reverse_cull_face_mode(RID p_light, bool p_ena
 	light->reverse_cull = p_enabled;
 
 	light->version++;
-	light->instance_dependency.instance_notify_changed(true, false);
+	light->dependency.changed_notify(DEPENDENCY_CHANGED_LIGHT);
 }
 
 void RendererStorageRD::light_set_bake_mode(RID p_light, RS::LightBakeMode p_bake_mode) {
@@ -5424,7 +5433,7 @@ void RendererStorageRD::light_set_bake_mode(RID p_light, RS::LightBakeMode p_bak
 	light->bake_mode = p_bake_mode;
 
 	light->version++;
-	light->instance_dependency.instance_notify_changed(true, false);
+	light->dependency.changed_notify(DEPENDENCY_CHANGED_LIGHT);
 }
 
 void RendererStorageRD::light_set_max_sdfgi_cascade(RID p_light, uint32_t p_cascade) {
@@ -5434,7 +5443,7 @@ void RendererStorageRD::light_set_max_sdfgi_cascade(RID p_light, uint32_t p_casc
 	light->max_sdfgi_cascade = p_cascade;
 
 	light->version++;
-	light->instance_dependency.instance_notify_changed(true, false);
+	light->dependency.changed_notify(DEPENDENCY_CHANGED_LIGHT);
 }
 
 void RendererStorageRD::light_omni_set_shadow_mode(RID p_light, RS::LightOmniShadowMode p_mode) {
@@ -5444,7 +5453,7 @@ void RendererStorageRD::light_omni_set_shadow_mode(RID p_light, RS::LightOmniSha
 	light->omni_shadow_mode = p_mode;
 
 	light->version++;
-	light->instance_dependency.instance_notify_changed(true, false);
+	light->dependency.changed_notify(DEPENDENCY_CHANGED_LIGHT);
 }
 
 RS::LightOmniShadowMode RendererStorageRD::light_omni_get_shadow_mode(RID p_light) {
@@ -5460,7 +5469,7 @@ void RendererStorageRD::light_directional_set_shadow_mode(RID p_light, RS::Light
 
 	light->directional_shadow_mode = p_mode;
 	light->version++;
-	light->instance_dependency.instance_notify_changed(true, false);
+	light->dependency.changed_notify(DEPENDENCY_CHANGED_LIGHT);
 }
 
 void RendererStorageRD::light_directional_set_blend_splits(RID p_light, bool p_enable) {
@@ -5469,7 +5478,7 @@ void RendererStorageRD::light_directional_set_blend_splits(RID p_light, bool p_e
 
 	light->directional_blend_splits = p_enable;
 	light->version++;
-	light->instance_dependency.instance_notify_changed(true, false);
+	light->dependency.changed_notify(DEPENDENCY_CHANGED_LIGHT);
 }
 
 bool RendererStorageRD::light_directional_get_blend_splits(RID p_light) const {
@@ -5568,7 +5577,7 @@ void RendererStorageRD::reflection_probe_set_update_mode(RID p_probe, RS::Reflec
 	ERR_FAIL_COND(!reflection_probe);
 
 	reflection_probe->update_mode = p_mode;
-	reflection_probe->instance_dependency.instance_notify_changed(true, false);
+	reflection_probe->dependency.changed_notify(DEPENDENCY_CHANGED_REFLECTION_PROBE);
 }
 
 void RendererStorageRD::reflection_probe_set_intensity(RID p_probe, float p_intensity) {
@@ -5605,7 +5614,7 @@ void RendererStorageRD::reflection_probe_set_max_distance(RID p_probe, float p_d
 
 	reflection_probe->max_distance = p_distance;
 
-	reflection_probe->instance_dependency.instance_notify_changed(true, false);
+	reflection_probe->dependency.changed_notify(DEPENDENCY_CHANGED_REFLECTION_PROBE);
 }
 
 void RendererStorageRD::reflection_probe_set_extents(RID p_probe, const Vector3 &p_extents) {
@@ -5616,7 +5625,7 @@ void RendererStorageRD::reflection_probe_set_extents(RID p_probe, const Vector3
 		return;
 	}
 	reflection_probe->extents = p_extents;
-	reflection_probe->instance_dependency.instance_notify_changed(true, false);
+	reflection_probe->dependency.changed_notify(DEPENDENCY_CHANGED_REFLECTION_PROBE);
 }
 
 void RendererStorageRD::reflection_probe_set_origin_offset(RID p_probe, const Vector3 &p_offset) {
@@ -5624,7 +5633,7 @@ void RendererStorageRD::reflection_probe_set_origin_offset(RID p_probe, const Ve
 	ERR_FAIL_COND(!reflection_probe);
 
 	reflection_probe->origin_offset = p_offset;
-	reflection_probe->instance_dependency.instance_notify_changed(true, false);
+	reflection_probe->dependency.changed_notify(DEPENDENCY_CHANGED_REFLECTION_PROBE);
 }
 
 void RendererStorageRD::reflection_probe_set_as_interior(RID p_probe, bool p_enable) {
@@ -5632,7 +5641,7 @@ void RendererStorageRD::reflection_probe_set_as_interior(RID p_probe, bool p_ena
 	ERR_FAIL_COND(!reflection_probe);
 
 	reflection_probe->interior = p_enable;
-	reflection_probe->instance_dependency.instance_notify_changed(true, false);
+	reflection_probe->dependency.changed_notify(DEPENDENCY_CHANGED_REFLECTION_PROBE);
 }
 
 void RendererStorageRD::reflection_probe_set_enable_box_projection(RID p_probe, bool p_enable) {
@@ -5647,7 +5656,7 @@ void RendererStorageRD::reflection_probe_set_enable_shadows(RID p_probe, bool p_
 	ERR_FAIL_COND(!reflection_probe);
 
 	reflection_probe->enable_shadows = p_enable;
-	reflection_probe->instance_dependency.instance_notify_changed(true, false);
+	reflection_probe->dependency.changed_notify(DEPENDENCY_CHANGED_REFLECTION_PROBE);
 }
 
 void RendererStorageRD::reflection_probe_set_cull_mask(RID p_probe, uint32_t p_layers) {
@@ -5655,7 +5664,7 @@ void RendererStorageRD::reflection_probe_set_cull_mask(RID p_probe, uint32_t p_l
 	ERR_FAIL_COND(!reflection_probe);
 
 	reflection_probe->cull_mask = p_layers;
-	reflection_probe->instance_dependency.instance_notify_changed(true, false);
+	reflection_probe->dependency.changed_notify(DEPENDENCY_CHANGED_REFLECTION_PROBE);
 }
 
 void RendererStorageRD::reflection_probe_set_resolution(RID p_probe, int p_resolution) {
@@ -5672,7 +5681,7 @@ void RendererStorageRD::reflection_probe_set_lod_threshold(RID p_probe, float p_
 
 	reflection_probe->lod_threshold = p_ratio;
 
-	reflection_probe->instance_dependency.instance_notify_changed(true, false);
+	reflection_probe->dependency.changed_notify(DEPENDENCY_CHANGED_REFLECTION_PROBE);
 }
 
 AABB RendererStorageRD::reflection_probe_get_aabb(RID p_probe) const {
@@ -5790,7 +5799,7 @@ void RendererStorageRD::decal_set_extents(RID p_decal, const Vector3 &p_extents)
 	Decal *decal = decal_owner.getornull(p_decal);
 	ERR_FAIL_COND(!decal);
 	decal->extents = p_extents;
-	decal->instance_dependency.instance_notify_changed(true, false);
+	decal->dependency.changed_notify(DEPENDENCY_CHANGED_AABB);
 }
 
 void RendererStorageRD::decal_set_texture(RID p_decal, RS::DecalTexture p_type, RID p_texture) {
@@ -5814,7 +5823,7 @@ void RendererStorageRD::decal_set_texture(RID p_decal, RS::DecalTexture p_type,
 		texture_add_to_decal_atlas(decal->textures[p_type]);
 	}
 
-	decal->instance_dependency.instance_notify_changed(false, true);
+	decal->dependency.changed_notify(DEPENDENCY_CHANGED_DECAL);
 }
 
 void RendererStorageRD::decal_set_emission_energy(RID p_decal, float p_energy) {
@@ -5839,7 +5848,7 @@ void RendererStorageRD::decal_set_cull_mask(RID p_decal, uint32_t p_layers) {
 	Decal *decal = decal_owner.getornull(p_decal);
 	ERR_FAIL_COND(!decal);
 	decal->cull_mask = p_layers;
-	decal->instance_dependency.instance_notify_changed(true, false);
+	decal->dependency.changed_notify(DEPENDENCY_CHANGED_AABB);
 }
 
 void RendererStorageRD::decal_set_distance_fade(RID p_decal, bool p_enabled, float p_begin, float p_length) {
@@ -5996,7 +6005,7 @@ void RendererStorageRD::gi_probe_allocate(RID p_gi_probe, const Transform &p_to_
 	gi_probe->version++;
 	gi_probe->data_version++;
 
-	gi_probe->instance_dependency.instance_notify_changed(true, false);
+	gi_probe->dependency.changed_notify(DEPENDENCY_CHANGED_AABB);
 }
 
 AABB RendererStorageRD::gi_probe_get_bounds(RID p_gi_probe) const {
@@ -7074,45 +7083,45 @@ void RendererStorageRD::render_target_set_backbuffer_uniform_set(RID p_render_ta
 	rt->backbuffer_uniform_set = p_uniform_set;
 }
 
-void RendererStorageRD::base_update_dependency(RID p_base, InstanceBaseDependency *p_instance) {
+void RendererStorageRD::base_update_dependency(RID p_base, DependencyTracker *p_instance) {
 	if (mesh_owner.owns(p_base)) {
 		Mesh *mesh = mesh_owner.getornull(p_base);
-		p_instance->update_dependency(&mesh->instance_dependency);
+		p_instance->update_dependency(&mesh->dependency);
 	} else if (multimesh_owner.owns(p_base)) {
 		MultiMesh *multimesh = multimesh_owner.getornull(p_base);
-		p_instance->update_dependency(&multimesh->instance_dependency);
+		p_instance->update_dependency(&multimesh->dependency);
 		if (multimesh->mesh.is_valid()) {
 			base_update_dependency(multimesh->mesh, p_instance);
 		}
 	} else if (reflection_probe_owner.owns(p_base)) {
 		ReflectionProbe *rp = reflection_probe_owner.getornull(p_base);
-		p_instance->update_dependency(&rp->instance_dependency);
+		p_instance->update_dependency(&rp->dependency);
 	} else if (decal_owner.owns(p_base)) {
 		Decal *decal = decal_owner.getornull(p_base);
-		p_instance->update_dependency(&decal->instance_dependency);
+		p_instance->update_dependency(&decal->dependency);
 	} else if (gi_probe_owner.owns(p_base)) {
 		GIProbe *gip = gi_probe_owner.getornull(p_base);
-		p_instance->update_dependency(&gip->instance_dependency);
+		p_instance->update_dependency(&gip->dependency);
 	} else if (lightmap_owner.owns(p_base)) {
 		Lightmap *lm = lightmap_owner.getornull(p_base);
-		p_instance->update_dependency(&lm->instance_dependency);
+		p_instance->update_dependency(&lm->dependency);
 	} else if (light_owner.owns(p_base)) {
 		Light *l = light_owner.getornull(p_base);
-		p_instance->update_dependency(&l->instance_dependency);
+		p_instance->update_dependency(&l->dependency);
 	} else if (particles_owner.owns(p_base)) {
 		Particles *p = particles_owner.getornull(p_base);
-		p_instance->update_dependency(&p->instance_dependency);
+		p_instance->update_dependency(&p->dependency);
 	} else if (particles_collision_owner.owns(p_base)) {
 		ParticlesCollision *pc = particles_collision_owner.getornull(p_base);
-		p_instance->update_dependency(&pc->instance_dependency);
+		p_instance->update_dependency(&pc->dependency);
 	}
 }
 
-void RendererStorageRD::skeleton_update_dependency(RID p_skeleton, InstanceBaseDependency *p_instance) {
+void RendererStorageRD::skeleton_update_dependency(RID p_skeleton, DependencyTracker *p_instance) {
 	Skeleton *skeleton = skeleton_owner.getornull(p_skeleton);
 	ERR_FAIL_COND(!skeleton);
 
-	p_instance->update_dependency(&skeleton->instance_dependency);
+	p_instance->update_dependency(&skeleton->dependency);
 }
 
 RS::InstanceType RendererStorageRD::get_base_type(RID p_rid) const {
@@ -8133,12 +8142,13 @@ bool RendererStorageRD::free(RID p_rid) {
 			_update_queued_materials();
 		}
 		material_set_shader(p_rid, RID()); //clean up shader
-		material->instance_dependency.instance_notify_deleted(p_rid);
+		material->dependency.deleted_notify(p_rid);
+
 		material_owner.free(p_rid);
 	} else if (mesh_owner.owns(p_rid)) {
 		mesh_clear(p_rid);
 		Mesh *mesh = mesh_owner.getornull(p_rid);
-		mesh->instance_dependency.instance_notify_deleted(p_rid);
+		mesh->dependency.deleted_notify(p_rid);
 		if (mesh->instances.size()) {
 			ERR_PRINT("deleting mesh with active instances");
 		}
@@ -8155,17 +8165,17 @@ bool RendererStorageRD::free(RID p_rid) {
 		_update_dirty_multimeshes();
 		multimesh_allocate(p_rid, 0, RS::MULTIMESH_TRANSFORM_2D);
 		MultiMesh *multimesh = multimesh_owner.getornull(p_rid);
-		multimesh->instance_dependency.instance_notify_deleted(p_rid);
+		multimesh->dependency.deleted_notify(p_rid);
 		multimesh_owner.free(p_rid);
 	} else if (skeleton_owner.owns(p_rid)) {
 		_update_dirty_skeletons();
 		skeleton_allocate(p_rid, 0);
 		Skeleton *skeleton = skeleton_owner.getornull(p_rid);
-		skeleton->instance_dependency.instance_notify_deleted(p_rid);
+		skeleton->dependency.deleted_notify(p_rid);
 		skeleton_owner.free(p_rid);
 	} else if (reflection_probe_owner.owns(p_rid)) {
 		ReflectionProbe *reflection_probe = reflection_probe_owner.getornull(p_rid);
-		reflection_probe->instance_dependency.instance_notify_deleted(p_rid);
+		reflection_probe->dependency.deleted_notify(p_rid);
 		reflection_probe_owner.free(p_rid);
 	} else if (decal_owner.owns(p_rid)) {
 		Decal *decal = decal_owner.getornull(p_rid);
@@ -8174,30 +8184,30 @@ bool RendererStorageRD::free(RID p_rid) {
 				texture_remove_from_decal_atlas(decal->textures[i]);
 			}
 		}
-		decal->instance_dependency.instance_notify_deleted(p_rid);
+		decal->dependency.deleted_notify(p_rid);
 		decal_owner.free(p_rid);
 	} else if (gi_probe_owner.owns(p_rid)) {
 		gi_probe_allocate(p_rid, Transform(), AABB(), Vector3i(), Vector<uint8_t>(), Vector<uint8_t>(), Vector<uint8_t>(), Vector<int>()); //deallocate
 		GIProbe *gi_probe = gi_probe_owner.getornull(p_rid);
-		gi_probe->instance_dependency.instance_notify_deleted(p_rid);
+		gi_probe->dependency.deleted_notify(p_rid);
 		gi_probe_owner.free(p_rid);
 	} else if (lightmap_owner.owns(p_rid)) {
 		lightmap_set_textures(p_rid, RID(), false);
 		Lightmap *lightmap = lightmap_owner.getornull(p_rid);
-		lightmap->instance_dependency.instance_notify_deleted(p_rid);
+		lightmap->dependency.deleted_notify(p_rid);
 		lightmap_owner.free(p_rid);
 
 	} else if (light_owner.owns(p_rid)) {
 		light_set_projector(p_rid, RID()); //clear projector
 		// delete the texture
 		Light *light = light_owner.getornull(p_rid);
-		light->instance_dependency.instance_notify_deleted(p_rid);
+		light->dependency.deleted_notify(p_rid);
 		light_owner.free(p_rid);
 
 	} else if (particles_owner.owns(p_rid)) {
 		Particles *particles = particles_owner.getornull(p_rid);
 		_particles_free_data(particles);
-		particles->instance_dependency.instance_notify_deleted(p_rid);
+		particles->dependency.deleted_notify(p_rid);
 		particles_owner.free(p_rid);
 	} else if (particles_collision_owner.owns(p_rid)) {
 		ParticlesCollision *particles_collision = particles_collision_owner.getornull(p_rid);
@@ -8205,7 +8215,7 @@ bool RendererStorageRD::free(RID p_rid) {
 		if (particles_collision->heightfield_texture.is_valid()) {
 			RD::get_singleton()->free(particles_collision->heightfield_texture);
 		}
-		particles_collision->instance_dependency.instance_notify_deleted(p_rid);
+		particles_collision->dependency.deleted_notify(p_rid);
 		particles_collision_owner.free(p_rid);
 	} else if (particles_collision_instance_owner.owns(p_rid)) {
 		particles_collision_instance_owner.free(p_rid);

servers/rendering/renderer_rd/renderer_storage_rd.h

@@ -360,6 +360,7 @@ private:
 		Shader *shader;
 		//shortcut to shader data and type
 		ShaderType shader_type;
+		uint32_t shader_id = 0;
 		bool update_requested;
 		bool uniform_dirty;
 		bool texture_dirty;
@@ -367,7 +368,7 @@ private:
 		Map<StringName, Variant> params;
 		int32_t priority;
 		RID next_pass;
-		RendererStorage::InstanceDependency instance_dependency;
+		Dependency dependency;
 	};
 
 	MaterialDataRequestFunction material_data_request_func[SHADER_TYPE_MAX];
@@ -460,7 +461,7 @@ private:
 
 		List<MeshInstance *> instances;
 
-		RendererStorage::InstanceDependency instance_dependency;
+		Dependency dependency;
 	};
 
 	mutable RID_Owner<Mesh> mesh_owner;
@@ -563,7 +564,7 @@ private:
 		bool dirty = false;
 		MultiMesh *dirty_list = nullptr;
 
-		RendererStorage::InstanceDependency instance_dependency;
+		Dependency dependency;
 	};
 
 	mutable RID_Owner<MultiMesh> multimesh_owner;
@@ -761,7 +762,7 @@ private:
 				clear(true) {
 		}
 
-		RendererStorage::InstanceDependency instance_dependency;
+		Dependency dependency;
 
 		ParticlesFrameParams frame_params;
 	};
@@ -889,7 +890,7 @@ private:
 
 		RS::ParticlesCollisionHeightfieldResolution heightfield_resolution = RS::PARTICLES_COLLISION_HEIGHTFIELD_RESOLUTION_1024;
 
-		RendererStorage::InstanceDependency instance_dependency;
+		Dependency dependency;
 	};
 
 	mutable RID_Owner<ParticlesCollision> particles_collision_owner;
@@ -919,7 +920,7 @@ private:
 
 		uint64_t version = 1;
 
-		RendererStorage::InstanceDependency instance_dependency;
+		Dependency dependency;
 	};
 
 	mutable RID_Owner<Skeleton> skeleton_owner;
@@ -951,7 +952,7 @@ private:
 		bool directional_sky_only = false;
 		uint64_t version = 0;
 
-		RendererStorage::InstanceDependency instance_dependency;
+		Dependency dependency;
 	};
 
 	mutable RID_Owner<Light> light_owner;
@@ -974,7 +975,7 @@ private:
 		uint32_t cull_mask = (1 << 20) - 1;
 		float lod_threshold = 0.01;
 
-		RendererStorage::InstanceDependency instance_dependency;
+		Dependency dependency;
 	};
 
 	mutable RID_Owner<ReflectionProbe> reflection_probe_owner;
@@ -995,7 +996,7 @@ private:
 		float distance_fade_length = 1;
 		float normal_fade = 0.0;
 
-		RendererStorage::InstanceDependency instance_dependency;
+		Dependency dependency;
 	};
 
 	mutable RID_Owner<Decal> decal_owner;
@@ -1033,7 +1034,7 @@ private:
 		uint32_t version = 1;
 		uint32_t data_version = 1;
 
-		RendererStorage::InstanceDependency instance_dependency;
+		Dependency dependency;
 	};
 
 	GiprobeSdfShaderRD giprobe_sdf_shader;
@@ -1062,7 +1063,7 @@ private:
 			int32_t over = EMPTY_LEAF, under = EMPTY_LEAF;
 		};
 
-		RendererStorage::InstanceDependency instance_dependency;
+		Dependency dependency;
 	};
 
 	bool using_lightmap_array; //high end uses this
@@ -1355,11 +1356,16 @@ public:
 
 	void material_get_instance_shader_parameters(RID p_material, List<InstanceShaderParam> *r_parameters);
 
-	void material_update_dependency(RID p_material, InstanceBaseDependency *p_instance);
+	void material_update_dependency(RID p_material, DependencyTracker *p_instance);
 	void material_force_update_textures(RID p_material, ShaderType p_shader_type);
 
 	void material_set_data_request_function(ShaderType p_shader_type, MaterialDataRequestFunction p_function);
 
+	_FORCE_INLINE_ uint32_t material_get_shader_id(RID p_material) {
+		Material *material = material_owner.getornull(p_material);
+		return material->shader_id;
+	}
+
 	_FORCE_INLINE_ MaterialData *material_get_data(RID p_material, ShaderType p_shader_type) {
 		Material *material = material_owner.getornull(p_material);
 		if (!material || material->shader_type != p_shader_type) {
@@ -1672,6 +1678,10 @@ public:
 	void skeleton_bone_set_transform_2d(RID p_skeleton, int p_bone, const Transform2D &p_transform);
 	Transform2D skeleton_bone_get_transform_2d(RID p_skeleton, int p_bone) const;
 
+	_FORCE_INLINE_ bool skeleton_is_valid(RID p_skeleton) {
+		return skeleton_owner.getornull(p_skeleton) != nullptr;
+	}
+
 	_FORCE_INLINE_ RID skeleton_get_3d_uniform_set(RID p_skeleton, RID p_shader, uint32_t p_set) const {
 		Skeleton *skeleton = skeleton_owner.getornull(p_skeleton);
 		ERR_FAIL_COND_V(!skeleton, RID());
@@ -1835,8 +1845,8 @@ public:
 	Color reflection_probe_get_ambient_color(RID p_probe) const;
 	float reflection_probe_get_ambient_color_energy(RID p_probe) const;
 
-	void base_update_dependency(RID p_base, InstanceBaseDependency *p_instance);
-	void skeleton_update_dependency(RID p_skeleton, InstanceBaseDependency *p_instance);
+	void base_update_dependency(RID p_base, DependencyTracker *p_instance);
+	void skeleton_update_dependency(RID p_skeleton, DependencyTracker *p_instance);
 
 	/* DECAL API */
 

servers/rendering/renderer_rd/shaders/scene_forward.glsl

@@ -97,8 +97,6 @@ VERTEX_SHADER_GLOBALS
 
 invariant gl_Position;
 
-layout(location = 7) flat out uint instance_index;
-
 #ifdef MODE_DUAL_PARABOLOID
 
 layout(location = 8) out float dp_clip;
@@ -106,22 +104,27 @@ layout(location = 8) out float dp_clip;
 #endif
 
 void main() {
-	instance_index = draw_call.instance_index;
 	vec4 instance_custom = vec4(0.0);
 #if defined(COLOR_USED)
 	color_interp = color_attrib;
 #endif
 
-	mat4 world_matrix = instances.data[instance_index].transform;
-	mat3 world_normal_matrix = mat3(instances.data[instance_index].normal_transform);
+	mat4 world_matrix = draw_call.transform;
+
+	mat3 world_normal_matrix;
+	if (bool(draw_call.flags & INSTANCE_FLAGS_NON_UNIFORM_SCALE)) {
+		world_normal_matrix = inverse(mat3(world_matrix));
+	} else {
+		world_normal_matrix = mat3(world_matrix);
+	}
 
-	if (bool(instances.data[instance_index].flags & INSTANCE_FLAGS_MULTIMESH)) {
+	if (bool(draw_call.flags & INSTANCE_FLAGS_MULTIMESH)) {
 		//multimesh, instances are for it
-		uint offset = (instances.data[instance_index].flags >> INSTANCE_FLAGS_MULTIMESH_STRIDE_SHIFT) & INSTANCE_FLAGS_MULTIMESH_STRIDE_MASK;
+		uint offset = (draw_call.flags >> INSTANCE_FLAGS_MULTIMESH_STRIDE_SHIFT) & INSTANCE_FLAGS_MULTIMESH_STRIDE_MASK;
 		offset *= gl_InstanceIndex;
 
 		mat4 matrix;
-		if (bool(instances.data[instance_index].flags & INSTANCE_FLAGS_MULTIMESH_FORMAT_2D)) {
+		if (bool(draw_call.flags & INSTANCE_FLAGS_MULTIMESH_FORMAT_2D)) {
 			matrix = mat4(transforms.data[offset + 0], transforms.data[offset + 1], vec4(0.0, 0.0, 1.0, 0.0), vec4(0.0, 0.0, 0.0, 1.0));
 			offset += 2;
 		} else {
@@ -129,14 +132,14 @@ void main() {
 			offset += 3;
 		}
 
-		if (bool(instances.data[instance_index].flags & INSTANCE_FLAGS_MULTIMESH_HAS_COLOR)) {
+		if (bool(draw_call.flags & INSTANCE_FLAGS_MULTIMESH_HAS_COLOR)) {
 #ifdef COLOR_USED
 			color_interp *= transforms.data[offset];
 #endif
 			offset += 1;
 		}
 
-		if (bool(instances.data[instance_index].flags & INSTANCE_FLAGS_MULTIMESH_HAS_CUSTOM_DATA)) {
+		if (bool(draw_call.flags & INSTANCE_FLAGS_MULTIMESH_HAS_CUSTOM_DATA)) {
 			instance_custom = transforms.data[offset];
 		}
 
@@ -144,10 +147,6 @@ void main() {
 		matrix = transpose(matrix);
 		world_matrix = world_matrix * matrix;
 		world_normal_matrix = world_normal_matrix * mat3(matrix);
-
-	} else {
-		//not a multimesh, instances are for multiple draw calls
-		instance_index += gl_InstanceIndex;
 	}
 
 	vec3 vertex = vertex_attrib;
@@ -162,7 +161,7 @@ void main() {
 #endif
 
 #if 0
-	if (bool(instances.data[instance_index].flags & INSTANCE_FLAGS_SKELETON)) {
+	if (bool(draw_call.flags & INSTANCE_FLAGS_SKELETON)) {
 		//multimesh, instances are for it
 
 		uvec2 bones_01 = uvec2(bone_attrib.x & 0xFFFF, bone_attrib.x >> 16) * 3;
@@ -305,7 +304,7 @@ VERTEX_SHADER_CODE
 #endif
 #ifdef MODE_RENDER_MATERIAL
 	if (scene_data.material_uv2_mode) {
-		gl_Position.xy = (uv2_attrib.xy + draw_call.bake_uv2_offset) * 2.0 - 1.0;
+		gl_Position.xy = (uv2_attrib.xy + draw_call.lightmap_uv_scale.xy) * 2.0 - 1.0;
 		gl_Position.z = 0.00001;
 		gl_Position.w = 1.0;
 	}
@@ -345,8 +344,6 @@ layout(location = 5) in vec3 tangent_interp;
 layout(location = 6) in vec3 binormal_interp;
 #endif
 
-layout(location = 7) flat in uint instance_index;
-
 #ifdef MODE_DUAL_PARABOLOID
 
 layout(location = 8) in float dp_clip;
@@ -355,8 +352,7 @@ layout(location = 8) in float dp_clip;
 
 //defines to keep compatibility with vertex
 
-#define world_matrix instances.data[instance_index].transform
-#define world_normal_matrix instances.data[instance_index].normal_transform
+#define world_matrix draw_call.transform
 #define projection_matrix scene_data.projection_matrix
 
 #if defined(ENABLE_SSS) && defined(ENABLE_TRANSMITTANCE)
@@ -1971,7 +1967,7 @@ FRAGMENT_SHADER_CODE
 
 		for (uint i = 0; i < decal_count; i++) {
 			uint decal_index = cluster_data.indices[decal_pointer + i];
-			if (!bool(decals.data[decal_index].mask & instances.data[instance_index].layer_mask)) {
+			if (!bool(decals.data[decal_index].mask & draw_call.layer_mask)) {
 				continue; //not masked
 			}
 
@@ -2102,8 +2098,8 @@ FRAGMENT_SHADER_CODE
 #ifdef USE_LIGHTMAP
 
 	//lightmap
-	if (bool(instances.data[instance_index].flags & INSTANCE_FLAGS_USE_LIGHTMAP_CAPTURE)) { //has lightmap capture
-		uint index = instances.data[instance_index].gi_offset;
+	if (bool(draw_call.flags & INSTANCE_FLAGS_USE_LIGHTMAP_CAPTURE)) { //has lightmap capture
+		uint index = draw_call.gi_offset;
 
 		vec3 wnormal = mat3(scene_data.camera_matrix) * normal;
 		const float c1 = 0.429043;
@@ -2122,12 +2118,12 @@ FRAGMENT_SHADER_CODE
 						  2.0 * c2 * lightmap_captures.data[index].sh[1].rgb * wnormal.y +
 						  2.0 * c2 * lightmap_captures.data[index].sh[2].rgb * wnormal.z);
 
-	} else if (bool(instances.data[instance_index].flags & INSTANCE_FLAGS_USE_LIGHTMAP)) { // has actual lightmap
-		bool uses_sh = bool(instances.data[instance_index].flags & INSTANCE_FLAGS_USE_SH_LIGHTMAP);
-		uint ofs = instances.data[instance_index].gi_offset & 0xFFF;
+	} else if (bool(draw_call.flags & INSTANCE_FLAGS_USE_LIGHTMAP)) { // has actual lightmap
+		bool uses_sh = bool(draw_call.flags & INSTANCE_FLAGS_USE_SH_LIGHTMAP);
+		uint ofs = draw_call.gi_offset & 0xFFFF;
 		vec3 uvw;
-		uvw.xy = uv2 * instances.data[instance_index].lightmap_uv_scale.zw + instances.data[instance_index].lightmap_uv_scale.xy;
-		uvw.z = float((instances.data[instance_index].gi_offset >> 12) & 0xFF);
+		uvw.xy = uv2 * draw_call.lightmap_uv_scale.zw + draw_call.lightmap_uv_scale.xy;
+		uvw.z = float((draw_call.gi_offset >> 16) & 0xFFFF);
 
 		if (uses_sh) {
 			uvw.z *= 4.0; //SH textures use 4 times more data
@@ -2136,7 +2132,7 @@ FRAGMENT_SHADER_CODE
 			vec3 lm_light_l1_0 = textureLod(sampler2DArray(lightmap_textures[ofs], material_samplers[SAMPLER_LINEAR_CLAMP]), uvw + vec3(0.0, 0.0, 2.0), 0.0).rgb;
 			vec3 lm_light_l1p1 = textureLod(sampler2DArray(lightmap_textures[ofs], material_samplers[SAMPLER_LINEAR_CLAMP]), uvw + vec3(0.0, 0.0, 3.0), 0.0).rgb;
 
-			uint idx = instances.data[instance_index].gi_offset >> 20;
+			uint idx = draw_call.gi_offset >> 20;
 			vec3 n = normalize(lightmaps.data[idx].normal_xform * normal);
 
 			ambient_light += lm_light_l0 * 0.282095f;
@@ -2156,7 +2152,7 @@ FRAGMENT_SHADER_CODE
 	}
 #elif defined(USE_FORWARD_GI)
 
-	if (bool(instances.data[instance_index].flags & INSTANCE_FLAGS_USE_SDFGI)) { //has lightmap capture
+	if (bool(draw_call.flags & INSTANCE_FLAGS_USE_SDFGI)) { //has lightmap capture
 
 		//make vertex orientation the world one, but still align to camera
 		vec3 cam_pos = mat3(scene_data.camera_matrix) * vertex;
@@ -2228,9 +2224,9 @@ FRAGMENT_SHADER_CODE
 		}
 	}
 
-	if (bool(instances.data[instance_index].flags & INSTANCE_FLAGS_USE_GIPROBE)) { // process giprobes
+	if (bool(draw_call.flags & INSTANCE_FLAGS_USE_GIPROBE)) { // process giprobes
 
-		uint index1 = instances.data[instance_index].gi_offset & 0xFFFF;
+		uint index1 = draw_call.gi_offset & 0xFFFF;
 		vec3 ref_vec = normalize(reflect(normalize(vertex), normal));
 		//find arbitrary tangent and bitangent, then build a matrix
 		vec3 v0 = abs(normal.z) < 0.999 ? vec3(0.0, 0.0, 1.0) : vec3(0.0, 1.0, 0.0);
@@ -2242,7 +2238,7 @@ FRAGMENT_SHADER_CODE
 		vec4 spec_accum = vec4(0.0);
 		gi_probe_compute(index1, vertex, normal, ref_vec, normal_mat, roughness * roughness, ambient_light, specular_light, spec_accum, amb_accum);
 
-		uint index2 = instances.data[instance_index].gi_offset >> 16;
+		uint index2 = draw_call.gi_offset >> 16;
 
 		if (index2 != 0xFFFF) {
 			gi_probe_compute(index2, vertex, normal, ref_vec, normal_mat, roughness * roughness, ambient_light, specular_light, spec_accum, amb_accum);
@@ -2261,7 +2257,7 @@ FRAGMENT_SHADER_CODE
 	}
 #elif !defined(LOW_END_MODE)
 
-	if (bool(instances.data[instance_index].flags & INSTANCE_FLAGS_USE_GI_BUFFERS)) { //use GI buffers
+	if (bool(draw_call.flags & INSTANCE_FLAGS_USE_GI_BUFFERS)) { //use GI buffers
 
 		ivec2 coord;
 
@@ -2343,7 +2339,7 @@ FRAGMENT_SHADER_CODE
 	{ //directional light
 
 		for (uint i = 0; i < scene_data.directional_light_count; i++) {
-			if (!bool(directional_lights.data[i].mask & instances.data[instance_index].layer_mask)) {
+			if (!bool(directional_lights.data[i].mask & draw_call.layer_mask)) {
 				continue; //not masked
 			}
 
@@ -2613,7 +2609,7 @@ FRAGMENT_SHADER_CODE
 		for (uint i = 0; i < omni_light_count; i++) {
 			uint light_index = cluster_data.indices[omni_light_pointer + i];
 
-			if (!bool(lights.data[light_index].mask & instances.data[instance_index].layer_mask)) {
+			if (!bool(lights.data[light_index].mask & draw_call.layer_mask)) {
 				continue; //not masked
 			}
 
@@ -2651,7 +2647,7 @@ FRAGMENT_SHADER_CODE
 		for (uint i = 0; i < spot_light_count; i++) {
 			uint light_index = cluster_data.indices[spot_light_pointer + i];
 
-			if (!bool(lights.data[light_index].mask & instances.data[instance_index].layer_mask)) {
+			if (!bool(lights.data[light_index].mask & draw_call.layer_mask)) {
 				continue; //not masked
 			}
 
@@ -2822,9 +2818,9 @@ FRAGMENT_SHADER_CODE
 	normal_roughness_output_buffer = vec4(normal * 0.5 + 0.5, roughness);
 
 #ifdef MODE_RENDER_GIPROBE
-	if (bool(instances.data[instance_index].flags & INSTANCE_FLAGS_USE_GIPROBE)) { // process giprobes
-		uint index1 = instances.data[instance_index].gi_offset & 0xFFFF;
-		uint index2 = instances.data[instance_index].gi_offset >> 16;
+	if (bool(draw_call.flags & INSTANCE_FLAGS_USE_GIPROBE)) { // process giprobes
+		uint index1 = draw_call.gi_offset & 0xFFFF;
+		uint index2 = draw_call.gi_offset >> 16;
 		giprobe_buffer.x = index1 & 0xFF;
 		giprobe_buffer.y = index2 & 0xFF;
 	} else {

servers/rendering/renderer_rd/shaders/scene_forward_inc.glsl

@@ -12,9 +12,12 @@
 #endif
 
 layout(push_constant, binding = 0, std430) uniform DrawCall {
-	uint instance_index;
-	uint pad; //16 bits minimum size
-	vec2 bake_uv2_offset; //used for bake to uv2, ignored otherwise
+	mat4 transform;
+	uint flags;
+	uint instance_uniforms_ofs; //base offset in global buffer for instance variables
+	uint gi_offset; //GI information when using lightmapping (VCT or lightmap index)
+	uint layer_mask;
+	vec4 lightmap_uv_scale;
 }
 draw_call;
 
@@ -134,21 +137,7 @@ scene_data;
 #define INSTANCE_FLAGS_MULTIMESH_STRIDE_MASK 0x7
 
 #define INSTANCE_FLAGS_SKELETON (1 << 19)
-
-struct InstanceData {
-	mat4 transform;
-	mat4 normal_transform;
-	uint flags;
-	uint instance_uniforms_ofs; //base offset in global buffer for instance variables
-	uint gi_offset; //GI information when using lightmapping (VCT or lightmap index)
-	uint layer_mask;
-	vec4 lightmap_uv_scale;
-};
-
-layout(set = 0, binding = 4, std430) restrict readonly buffer Instances {
-	InstanceData data[];
-}
-instances;
+#define INSTANCE_FLAGS_NON_UNIFORM_SCALE (1 << 20)
 
 layout(set = 0, binding = 5, std430) restrict readonly buffer Lights {
 	LightData data[];

servers/rendering/renderer_scene_cull.cpp

@@ -596,7 +596,7 @@ void RendererSceneCull::instance_set_base(RID p_instance, RID p_base) {
 		}
 
 		//forcefully update the dependency now, so if for some reason it gets removed, we can immediately clear it
-		RSG::storage->base_update_dependency(p_base, instance);
+		RSG::storage->base_update_dependency(p_base, &instance->dependency_tracker);
 	}
 
 	_instance_queue_update(instance, true, true);
@@ -830,7 +830,7 @@ void RendererSceneCull::instance_attach_skeleton(RID p_instance, RID p_skeleton)
 
 	if (p_skeleton.is_valid()) {
 		//update the dependency now, so if cleared, we remove it
-		RSG::storage->skeleton_update_dependency(p_skeleton, instance);
+		RSG::storage->skeleton_update_dependency(p_skeleton, &instance->dependency_tracker);
 	}
 
 	_instance_queue_update(instance, true, true);
@@ -3152,14 +3152,14 @@ void RendererSceneCull::_update_dirty_instance(Instance *p_instance) {
 	}
 
 	if (p_instance->update_dependencies) {
-		p_instance->instance_increase_version();
+		p_instance->dependency_tracker.update_begin();
 
 		if (p_instance->base.is_valid()) {
-			RSG::storage->base_update_dependency(p_instance->base, p_instance);
+			RSG::storage->base_update_dependency(p_instance->base, &p_instance->dependency_tracker);
 		}
 
 		if (p_instance->material_override.is_valid()) {
-			RSG::storage->material_update_dependency(p_instance->material_override, p_instance);
+			RSG::storage->material_update_dependency(p_instance->material_override, &p_instance->dependency_tracker);
 		}
 
 		if (p_instance->base_type == RS::INSTANCE_MESH) {
@@ -3211,7 +3211,7 @@ void RendererSceneCull::_update_dirty_instance(Instance *p_instance) {
 
 								_update_instance_shader_parameters_from_material(isparams, p_instance->instance_shader_parameters, mat);
 
-								RSG::storage->material_update_dependency(mat, p_instance);
+								RSG::storage->material_update_dependency(mat, &p_instance->dependency_tracker);
 							}
 						}
 
@@ -3242,7 +3242,7 @@ void RendererSceneCull::_update_dirty_instance(Instance *p_instance) {
 
 								_update_instance_shader_parameters_from_material(isparams, p_instance->instance_shader_parameters, mat);
 
-								RSG::storage->material_update_dependency(mat, p_instance);
+								RSG::storage->material_update_dependency(mat, &p_instance->dependency_tracker);
 							}
 						}
 
@@ -3250,7 +3250,7 @@ void RendererSceneCull::_update_dirty_instance(Instance *p_instance) {
 							can_cast_shadows = false;
 						}
 
-						RSG::storage->base_update_dependency(mesh, p_instance);
+						RSG::storage->base_update_dependency(mesh, &p_instance->dependency_tracker);
 					}
 				} else if (p_instance->base_type == RS::INSTANCE_IMMEDIATE) {
 					RID mat = RSG::storage->immediate_get_material(p_instance->base);
@@ -3268,7 +3268,7 @@ void RendererSceneCull::_update_dirty_instance(Instance *p_instance) {
 					}
 
 					if (mat.is_valid()) {
-						RSG::storage->material_update_dependency(mat, p_instance);
+						RSG::storage->material_update_dependency(mat, &p_instance->dependency_tracker);
 					}
 
 				} else if (p_instance->base_type == RS::INSTANCE_PARTICLES) {
@@ -3299,7 +3299,7 @@ void RendererSceneCull::_update_dirty_instance(Instance *p_instance) {
 
 								_update_instance_shader_parameters_from_material(isparams, p_instance->instance_shader_parameters, mat);
 
-								RSG::storage->material_update_dependency(mat, p_instance);
+								RSG::storage->material_update_dependency(mat, &p_instance->dependency_tracker);
 							}
 						}
 					}
@@ -3343,10 +3343,10 @@ void RendererSceneCull::_update_dirty_instance(Instance *p_instance) {
 		}
 
 		if (p_instance->skeleton.is_valid()) {
-			RSG::storage->skeleton_update_dependency(p_instance->skeleton, p_instance);
+			RSG::storage->skeleton_update_dependency(p_instance->skeleton, &p_instance->dependency_tracker);
 		}
 
-		p_instance->clean_up_dependencies();
+		p_instance->dependency_tracker.update_end();
 
 		if ((1 << p_instance->base_type) & RS::INSTANCE_GEOMETRY_MASK) {
 			InstanceGeometryData *geom = static_cast<InstanceGeometryData *>(p_instance->base_data);

servers/rendering/renderer_scene_cull.h

@@ -329,7 +329,7 @@ public:
 		virtual ~InstanceBaseData() {}
 	};
 
-	struct Instance : public RendererStorage::InstanceBaseDependency {
+	struct Instance {
 		RS::InstanceType base_type;
 		RID base;
 
@@ -412,18 +412,43 @@ public:
 		SelfList<InstancePair>::List pairs;
 		uint64_t pair_check;
 
-		virtual void dependency_deleted(RID p_dependency) {
-			if (p_dependency == base) {
-				singleton->instance_set_base(self, RID());
-			} else if (p_dependency == skeleton) {
-				singleton->instance_attach_skeleton(self, RID());
-			} else {
-				singleton->_instance_queue_update(this, false, true);
+		RendererStorage::DependencyTracker dependency_tracker;
+
+		static void dependency_changed(RendererStorage::DependencyChangedNotification p_notification, RendererStorage::DependencyTracker *tracker) {
+			Instance *instance = (Instance *)tracker->userdata;
+			switch (p_notification) {
+				case RendererStorage::DEPENDENCY_CHANGED_SKELETON_DATA:
+				case RendererStorage::DEPENDENCY_CHANGED_AABB: {
+					singleton->_instance_queue_update(instance, true, false);
+
+				} break;
+				case RendererStorage::DEPENDENCY_CHANGED_MATERIAL: {
+					singleton->_instance_queue_update(instance, false, true);
+				} break;
+				case RendererStorage::DEPENDENCY_CHANGED_MESH:
+				case RendererStorage::DEPENDENCY_CHANGED_MULTIMESH:
+				case RendererStorage::DEPENDENCY_CHANGED_DECAL:
+				case RendererStorage::DEPENDENCY_CHANGED_LIGHT:
+				case RendererStorage::DEPENDENCY_CHANGED_REFLECTION_PROBE: {
+					singleton->_instance_queue_update(instance, true, true);
+				} break;
+				case RendererStorage::DEPENDENCY_CHANGED_MULTIMESH_VISIBLE_INSTANCES:
+				case RendererStorage::DEPENDENCY_CHANGED_SKELETON_BONES: {
+					//ignored
+				} break;
 			}
 		}
 
-		virtual void dependency_changed(bool p_aabb, bool p_dependencies) {
-			singleton->_instance_queue_update(this, p_aabb, p_dependencies);
+		static void dependency_deleted(const RID &p_dependency, RendererStorage::DependencyTracker *tracker) {
+			Instance *instance = (Instance *)tracker->userdata;
+
+			if (p_dependency == instance->base) {
+				singleton->instance_set_base(instance->self, RID());
+			} else if (p_dependency == instance->skeleton) {
+				singleton->instance_attach_skeleton(instance->self, RID());
+			} else {
+				singleton->_instance_queue_update(instance, false, true);
+			}
 		}
 
 		Instance() :
@@ -434,7 +459,6 @@ public:
 			receive_shadows = true;
 			visible = true;
 			layer_mask = 1;
-			instance_version = 0;
 			baked_light = false;
 			dynamic_gi = false;
 			redraw_if_visible = false;
@@ -465,6 +489,10 @@ public:
 
 			pair_check = 0;
 			array_index = -1;
+
+			dependency_tracker.userdata = this;
+			dependency_tracker.changed_callback = dependency_changed;
+			dependency_tracker.deleted_callback = dependency_deleted;
 		}
 
 		~Instance() {

servers/rendering/renderer_storage.cpp

@@ -32,28 +32,31 @@
 
 RendererStorage *RendererStorage::base_singleton = nullptr;
 
-void RendererStorage::InstanceDependency::instance_notify_changed(bool p_aabb, bool p_dependencies) {
-	for (Map<InstanceBaseDependency *, uint32_t>::Element *E = instances.front(); E; E = E->next()) {
-		E->key()->dependency_changed(p_aabb, p_dependencies);
+void RendererStorage::Dependency::changed_notify(DependencyChangedNotification p_notification) {
+	for (Map<DependencyTracker *, uint32_t>::Element *E = instances.front(); E; E = E->next()) {
+		if (E->key()->changed_callback) {
+			E->key()->changed_callback(p_notification, E->key());
+		}
 	}
 }
 
-void RendererStorage::InstanceDependency::instance_notify_deleted(RID p_deleted) {
-	for (Map<InstanceBaseDependency *, uint32_t>::Element *E = instances.front(); E; E = E->next()) {
-		E->key()->dependency_deleted(p_deleted);
+void RendererStorage::Dependency::deleted_notify(const RID &p_rid) {
+	for (Map<DependencyTracker *, uint32_t>::Element *E = instances.front(); E; E = E->next()) {
+		if (E->key()->deleted_callback) {
+			E->key()->deleted_callback(p_rid, E->key());
+		}
 	}
-	for (Map<InstanceBaseDependency *, uint32_t>::Element *E = instances.front(); E; E = E->next()) {
+	for (Map<DependencyTracker *, uint32_t>::Element *E = instances.front(); E; E = E->next()) {
 		E->key()->dependencies.erase(this);
 	}
-
 	instances.clear();
 }
 
-RendererStorage::InstanceDependency::~InstanceDependency() {
+RendererStorage::Dependency::~Dependency() {
 #ifdef DEBUG_ENABLED
 	if (instances.size()) {
 		WARN_PRINT("Leaked instance dependency: Bug - did not call instance_notify_deleted when freeing.");
-		for (Map<InstanceBaseDependency *, uint32_t>::Element *E = instances.front(); E; E = E->next()) {
+		for (Map<DependencyTracker *, uint32_t>::Element *E = instances.front(); E; E = E->next()) {
 			E->key()->dependencies.erase(this);
 		}
 	}

servers/rendering/renderer_storage.h

@@ -37,43 +37,59 @@ class RendererStorage {
 	Color default_clear_color;
 
 public:
-	struct InstanceBaseDependency;
+	enum DependencyChangedNotification {
+		DEPENDENCY_CHANGED_AABB,
+		DEPENDENCY_CHANGED_MATERIAL,
+		DEPENDENCY_CHANGED_MESH,
+		DEPENDENCY_CHANGED_MULTIMESH,
+		DEPENDENCY_CHANGED_MULTIMESH_VISIBLE_INSTANCES,
+		DEPENDENCY_CHANGED_DECAL,
+		DEPENDENCY_CHANGED_SKELETON_DATA,
+		DEPENDENCY_CHANGED_SKELETON_BONES,
+		DEPENDENCY_CHANGED_LIGHT,
+		DEPENDENCY_CHANGED_REFLECTION_PROBE,
+	};
+
+	struct DependencyTracker;
 
-	struct InstanceDependency {
-		void instance_notify_changed(bool p_aabb, bool p_dependencies);
-		void instance_notify_deleted(RID p_deleted);
+protected:
+	struct Dependency {
+		void changed_notify(DependencyChangedNotification p_notification);
+		void deleted_notify(const RID &p_rid);
 
-		~InstanceDependency();
+		~Dependency();
 
 	private:
-		friend struct InstanceBaseDependency;
-		Map<InstanceBaseDependency *, uint32_t> instances;
+		friend struct DependencyTracker;
+		Map<DependencyTracker *, uint32_t> instances;
 	};
 
-	struct InstanceBaseDependency {
-		uint32_t instance_version;
-		Set<InstanceDependency *> dependencies;
+public:
+	struct DependencyTracker {
+		void *userdata = nullptr;
+		typedef void (*ChangedCallback)(DependencyChangedNotification, DependencyTracker *);
+		typedef void (*DeletedCallback)(const RID &, DependencyTracker *);
 
-		virtual void dependency_deleted(RID p_dependency) {}
-		virtual void dependency_changed(bool p_aabb, bool p_dependencies) {}
+		ChangedCallback changed_callback = nullptr;
+		DeletedCallback deleted_callback = nullptr;
 
-		void instance_increase_version() {
+		void update_begin() { // call before updating dependencies
 			instance_version++;
 		}
 
-		void update_dependency(InstanceDependency *p_dependency) {
+		void update_dependency(Dependency *p_dependency) { //called internally, can't be used directly, use update functions in Storage
 			dependencies.insert(p_dependency);
 			p_dependency->instances[this] = instance_version;
 		}
 
-		void clean_up_dependencies() {
-			List<Pair<InstanceDependency *, Map<InstanceBaseDependency *, uint32_t>::Element *>> to_clean_up;
-			for (Set<InstanceDependency *>::Element *E = dependencies.front(); E; E = E->next()) {
-				InstanceDependency *dep = E->get();
-				Map<InstanceBaseDependency *, uint32_t>::Element *F = dep->instances.find(this);
+		void update_end() { //call after updating dependencies
+			List<Pair<Dependency *, Map<DependencyTracker *, uint32_t>::Element *>> to_clean_up;
+			for (Set<Dependency *>::Element *E = dependencies.front(); E; E = E->next()) {
+				Dependency *dep = E->get();
+				Map<DependencyTracker *, uint32_t>::Element *F = dep->instances.find(this);
 				ERR_CONTINUE(!F);
 				if (F->get() != instance_version) {
-					Pair<InstanceDependency *, Map<InstanceBaseDependency *, uint32_t>::Element *> p;
+					Pair<Dependency *, Map<DependencyTracker *, uint32_t>::Element *> p;
 					p.first = dep;
 					p.second = F;
 					to_clean_up.push_back(p);
@@ -86,15 +102,20 @@ public:
 			}
 		}
 
-		void clear_dependencies() {
-			for (Set<InstanceDependency *>::Element *E = dependencies.front(); E; E = E->next()) {
-				InstanceDependency *dep = E->get();
+		void clear() { // clear all dependencies
+			for (Set<Dependency *>::Element *E = dependencies.front(); E; E = E->next()) {
+				Dependency *dep = E->get();
 				dep->instances.erase(this);
 			}
 			dependencies.clear();
 		}
 
-		virtual ~InstanceBaseDependency() { clear_dependencies(); }
+		~DependencyTracker() { clear(); }
+
+	private:
+		friend class Dependency;
+		uint32_t instance_version = 0;
+		Set<Dependency *> dependencies;
 	};
 
 	/* TEXTURE API */
@@ -181,7 +202,7 @@ public:
 
 	virtual void material_get_instance_shader_parameters(RID p_material, List<InstanceShaderParam> *r_parameters) = 0;
 
-	virtual void material_update_dependency(RID p_material, InstanceBaseDependency *p_instance) = 0;
+	virtual void material_update_dependency(RID p_material, DependencyTracker *p_instance) = 0;
 
 	/* MESH API */
 
@@ -349,8 +370,8 @@ public:
 	virtual bool reflection_probe_renders_shadows(RID p_probe) const = 0;
 	virtual float reflection_probe_get_lod_threshold(RID p_probe) const = 0;
 
-	virtual void base_update_dependency(RID p_base, InstanceBaseDependency *p_instance) = 0;
-	virtual void skeleton_update_dependency(RID p_base, InstanceBaseDependency *p_instance) = 0;
+	virtual void base_update_dependency(RID p_base, DependencyTracker *p_instance) = 0;
+	virtual void skeleton_update_dependency(RID p_base, DependencyTracker *p_instance) = 0;
 
 	/* DECAL API */