Deprecate ImmediateGeometry

* Removed entirely from RenderingServer.
* Replaced by ImmediateMesh resource.
* ImmediateMesh replaces ImmediateGeometry, but could use more optimization in the future.
* Sprite3D and AnimatedSprite3D work again, ported from Godot 3.x (though a lot of work was needed to adapt them to Godot 4).
* RootMotionView works again.
* Polygon3D editor works again.

8 files changed, 43 insertions, 144 deletions

diff --git a/servers/rendering/rasterizer_dummy.h b/servers/rendering/rasterizer_dummy.h
index d4c25b6253..bc5aae2b48 100644
--- a/servers/rendering/rasterizer_dummy.h
+++ b/servers/rendering/rasterizer_dummy.h
@@ -324,7 +324,9 @@ public:
 	void mesh_set_blend_shape_mode(RID p_mesh, RS::BlendShapeMode p_mode) override {}
 	RS::BlendShapeMode mesh_get_blend_shape_mode(RID p_mesh) const override { return RS::BLEND_SHAPE_MODE_NORMALIZED; }
 
-	void mesh_surface_update_region(RID p_mesh, int p_surface, int p_offset, const Vector<uint8_t> &p_data) override {}
+	void mesh_surface_update_vertex_region(RID p_mesh, int p_surface, int p_offset, const Vector<uint8_t> &p_data) override {}
+	void mesh_surface_update_attribute_region(RID p_mesh, int p_surface, int p_offset, const Vector<uint8_t> &p_data) override {}
+	void mesh_surface_update_skin_region(RID p_mesh, int p_surface, int p_offset, const Vector<uint8_t> &p_data) override {}
 
 	void mesh_surface_set_material(RID p_mesh, int p_surface, RID p_material) override {}
 	RID mesh_surface_get_material(RID p_mesh, int p_surface) const override { return RID(); }
@@ -365,23 +367,6 @@ public:
 	void multimesh_set_visible_instances(RID p_multimesh, int p_visible) override {}
 	int multimesh_get_visible_instances(RID p_multimesh) const override { return 0; }
 
-	/* IMMEDIATE API */
-
-	RID immediate_allocate() override { return RID(); }
-	void immediate_initialize(RID p_rid) override {}
-	void immediate_begin(RID p_immediate, RS::PrimitiveType p_rimitive, RID p_texture = RID()) override {}
-	void immediate_vertex(RID p_immediate, const Vector3 &p_vertex) override {}
-	void immediate_normal(RID p_immediate, const Vector3 &p_normal) override {}
-	void immediate_tangent(RID p_immediate, const Plane &p_tangent) override {}
-	void immediate_color(RID p_immediate, const Color &p_color) override {}
-	void immediate_uv(RID p_immediate, const Vector2 &tex_uv) override {}
-	void immediate_uv2(RID p_immediate, const Vector2 &tex_uv) override {}
-	void immediate_end(RID p_immediate) override {}
-	void immediate_clear(RID p_immediate) override {}
-	void immediate_set_material(RID p_immediate, RID p_material) override {}
-	RID immediate_get_material(RID p_immediate) const override { return RID(); }
-	AABB immediate_get_aabb(RID p_immediate) const override { return AABB(); }
-
 	/* SKELETON API */
 
 	RID skeleton_allocate() override { return RID(); }
diff --git a/servers/rendering/renderer_rd/renderer_storage_rd.cpp b/servers/rendering/renderer_rd/renderer_storage_rd.cpp
index a5a4b0e2d1..ee6fee6142 100644
--- a/servers/rendering/renderer_rd/renderer_storage_rd.cpp
+++ b/servers/rendering/renderer_rd/renderer_storage_rd.cpp
@@ -2655,7 +2655,7 @@ RS::BlendShapeMode RendererStorageRD::mesh_get_blend_shape_mode(RID p_mesh) cons
 	return mesh->blend_shape_mode;
 }
 
-void RendererStorageRD::mesh_surface_update_region(RID p_mesh, int p_surface, int p_offset, const Vector<uint8_t> &p_data) {
+void RendererStorageRD::mesh_surface_update_vertex_region(RID p_mesh, int p_surface, int p_offset, const Vector<uint8_t> &p_data) {
 	Mesh *mesh = mesh_owner.getornull(p_mesh);
 	ERR_FAIL_COND(!mesh);
 	ERR_FAIL_UNSIGNED_INDEX((uint32_t)p_surface, mesh->surface_count);
@@ -2666,6 +2666,30 @@ void RendererStorageRD::mesh_surface_update_region(RID p_mesh, int p_surface, in
 	RD::get_singleton()->buffer_update(mesh->surfaces[p_surface]->vertex_buffer, p_offset, data_size, r);
 }
 
+void RendererStorageRD::mesh_surface_update_attribute_region(RID p_mesh, int p_surface, int p_offset, const Vector<uint8_t> &p_data) {
+	Mesh *mesh = mesh_owner.getornull(p_mesh);
+	ERR_FAIL_COND(!mesh);
+	ERR_FAIL_UNSIGNED_INDEX((uint32_t)p_surface, mesh->surface_count);
+	ERR_FAIL_COND(p_data.size() == 0);
+	ERR_FAIL_COND(mesh->surfaces[p_surface]->attribute_buffer.is_null());
+	uint64_t data_size = p_data.size();
+	const uint8_t *r = p_data.ptr();
+
+	RD::get_singleton()->buffer_update(mesh->surfaces[p_surface]->attribute_buffer, p_offset, data_size, r);
+}
+
+void RendererStorageRD::mesh_surface_update_skin_region(RID p_mesh, int p_surface, int p_offset, const Vector<uint8_t> &p_data) {
+	Mesh *mesh = mesh_owner.getornull(p_mesh);
+	ERR_FAIL_COND(!mesh);
+	ERR_FAIL_UNSIGNED_INDEX((uint32_t)p_surface, mesh->surface_count);
+	ERR_FAIL_COND(p_data.size() == 0);
+	ERR_FAIL_COND(mesh->surfaces[p_surface]->skin_buffer.is_null());
+	uint64_t data_size = p_data.size();
+	const uint8_t *r = p_data.ptr();
+
+	RD::get_singleton()->buffer_update(mesh->surfaces[p_surface]->skin_buffer, p_offset, data_size, r);
+}
+
 void RendererStorageRD::mesh_surface_set_material(RID p_mesh, int p_surface, RID p_material) {
 	Mesh *mesh = mesh_owner.getornull(p_mesh);
 	ERR_FAIL_COND(!mesh);
diff --git a/servers/rendering/renderer_rd/renderer_storage_rd.h b/servers/rendering/renderer_rd/renderer_storage_rd.h
index 5de5593204..e09b1d6b16 100644
--- a/servers/rendering/renderer_rd/renderer_storage_rd.h
+++ b/servers/rendering/renderer_rd/renderer_storage_rd.h
@@ -1457,7 +1457,9 @@ public:
 	virtual void mesh_set_blend_shape_mode(RID p_mesh, RS::BlendShapeMode p_mode);
 	virtual RS::BlendShapeMode mesh_get_blend_shape_mode(RID p_mesh) const;
 
-	virtual void mesh_surface_update_region(RID p_mesh, int p_surface, int p_offset, const Vector<uint8_t> &p_data);
+	virtual void mesh_surface_update_vertex_region(RID p_mesh, int p_surface, int p_offset, const Vector<uint8_t> &p_data);
+	virtual void mesh_surface_update_attribute_region(RID p_mesh, int p_surface, int p_offset, const Vector<uint8_t> &p_data);
+	virtual void mesh_surface_update_skin_region(RID p_mesh, int p_surface, int p_offset, const Vector<uint8_t> &p_data);
 
 	virtual void mesh_surface_set_material(RID p_mesh, int p_surface, RID p_material);
 	virtual RID mesh_surface_get_material(RID p_mesh, int p_surface) const;
@@ -1746,24 +1748,6 @@ public:
 		return multimesh->uniform_set_2d;
 	}
 
-	/* IMMEDIATE API */
-
-	RID immediate_allocate() { return RID(); }
-	void immediate_initialize(RID p_immediate) {}
-
-	virtual void immediate_begin(RID p_immediate, RS::PrimitiveType p_rimitive, RID p_texture = RID()) {}
-	virtual void immediate_vertex(RID p_immediate, const Vector3 &p_vertex) {}
-	virtual void immediate_normal(RID p_immediate, const Vector3 &p_normal) {}
-	virtual void immediate_tangent(RID p_immediate, const Plane &p_tangent) {}
-	virtual void immediate_color(RID p_immediate, const Color &p_color) {}
-	virtual void immediate_uv(RID p_immediate, const Vector2 &tex_uv) {}
-	virtual void immediate_uv2(RID p_immediate, const Vector2 &tex_uv) {}
-	virtual void immediate_end(RID p_immediate) {}
-	virtual void immediate_clear(RID p_immediate) {}
-	virtual void immediate_set_material(RID p_immediate, RID p_material) {}
-	virtual RID immediate_get_material(RID p_immediate) const { return RID(); }
-	virtual AABB immediate_get_aabb(RID p_immediate) const { return AABB(); }
-
 	/* SKELETON API */
 
 	RID skeleton_allocate();
diff --git a/servers/rendering/renderer_scene_cull.cpp b/servers/rendering/renderer_scene_cull.cpp
index 5aaecb83c4..7e7139463b 100644
--- a/servers/rendering/renderer_scene_cull.cpp
+++ b/servers/rendering/renderer_scene_cull.cpp
@@ -478,7 +478,6 @@ void RendererSceneCull::instance_set_base(RID p_instance, RID p_base) {
 		switch (instance->base_type) {
 			case RS::INSTANCE_MESH:
 			case RS::INSTANCE_MULTIMESH:
-			case RS::INSTANCE_IMMEDIATE:
 			case RS::INSTANCE_PARTICLES: {
 				InstanceGeometryData *geom = static_cast<InstanceGeometryData *>(instance->base_data);
 				scene_render->geometry_instance_free(geom->geometry_instance);
@@ -590,7 +589,6 @@ void RendererSceneCull::instance_set_base(RID p_instance, RID p_base) {
 			} break;
 			case RS::INSTANCE_MESH:
 			case RS::INSTANCE_MULTIMESH:
-			case RS::INSTANCE_IMMEDIATE:
 			case RS::INSTANCE_PARTICLES: {
 				InstanceGeometryData *geom = memnew(InstanceGeometryData);
 				instance->base_data = geom;
@@ -888,7 +886,7 @@ void RendererSceneCull::instance_set_visible(RID p_instance, bool p_visible) {
 }
 
 inline bool is_geometry_instance(RenderingServer::InstanceType p_type) {
-	return p_type == RS::INSTANCE_MESH || p_type == RS::INSTANCE_MULTIMESH || p_type == RS::INSTANCE_PARTICLES || p_type == RS::INSTANCE_IMMEDIATE;
+	return p_type == RS::INSTANCE_MESH || p_type == RS::INSTANCE_MULTIMESH || p_type == RS::INSTANCE_PARTICLES;
 }
 
 void RendererSceneCull::instance_set_custom_aabb(RID p_instance, AABB p_aabb) {
@@ -1529,7 +1527,6 @@ void RendererSceneCull::_update_instance(Instance *p_instance) {
 		switch (p_instance->base_type) {
 			case RS::INSTANCE_MESH:
 			case RS::INSTANCE_MULTIMESH:
-			case RS::INSTANCE_IMMEDIATE:
 			case RS::INSTANCE_PARTICLES: {
 				InstanceGeometryData *geom = static_cast<InstanceGeometryData *>(p_instance->base_data);
 				idata.instance_geometry = geom->geometry_instance;
@@ -1748,14 +1745,6 @@ void RendererSceneCull::_update_instance_aabb(Instance *p_instance) {
 			}
 
 		} break;
-		case RenderingServer::INSTANCE_IMMEDIATE: {
-			if (p_instance->custom_aabb) {
-				new_aabb = *p_instance->custom_aabb;
-			} else {
-				new_aabb = RSG::storage->immediate_get_aabb(p_instance->base);
-			}
-
-		} break;
 		case RenderingServer::INSTANCE_PARTICLES: {
 			if (p_instance->custom_aabb) {
 				new_aabb = *p_instance->custom_aabb;
@@ -3681,25 +3670,6 @@ void RendererSceneCull::_update_dirty_instance(Instance *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);
-
-					if (!(!mat.is_valid() || RSG::storage->material_casts_shadows(mat))) {
-						can_cast_shadows = false;
-					}
-
-					if (mat.is_valid() && RSG::storage->material_is_animated(mat)) {
-						is_animated = true;
-					}
-
-					if (mat.is_valid()) {
-						_update_instance_shader_parameters_from_material(isparams, p_instance->instance_shader_parameters, mat);
-					}
-
-					if (mat.is_valid()) {
-						RSG::storage->material_update_dependency(mat, &p_instance->dependency_tracker);
-					}
-
 				} else if (p_instance->base_type == RS::INSTANCE_PARTICLES) {
 					bool cast_shadows = false;
 
diff --git a/servers/rendering/renderer_storage.h b/servers/rendering/renderer_storage.h
index f22c582f48..62b23acedf 100644
--- a/servers/rendering/renderer_storage.h
+++ b/servers/rendering/renderer_storage.h
@@ -230,7 +230,9 @@ public:
 	virtual void mesh_set_blend_shape_mode(RID p_mesh, RS::BlendShapeMode p_mode) = 0;
 	virtual RS::BlendShapeMode mesh_get_blend_shape_mode(RID p_mesh) const = 0;
 
-	virtual void mesh_surface_update_region(RID p_mesh, int p_surface, int p_offset, const Vector<uint8_t> &p_data) = 0;
+	virtual void mesh_surface_update_vertex_region(RID p_mesh, int p_surface, int p_offset, const Vector<uint8_t> &p_data) = 0;
+	virtual void mesh_surface_update_attribute_region(RID p_mesh, int p_surface, int p_offset, const Vector<uint8_t> &p_data) = 0;
+	virtual void mesh_surface_update_skin_region(RID p_mesh, int p_surface, int p_offset, const Vector<uint8_t> &p_data) = 0;
 
 	virtual void mesh_surface_set_material(RID p_mesh, int p_surface, RID p_material) = 0;
 	virtual RID mesh_surface_get_material(RID p_mesh, int p_surface) const = 0;
@@ -288,24 +290,6 @@ public:
 
 	virtual AABB multimesh_get_aabb(RID p_multimesh) const = 0;
 
-	/* IMMEDIATE API */
-
-	virtual RID immediate_allocate() = 0;
-	virtual void immediate_initialize(RID p_rid) = 0;
-
-	virtual void immediate_begin(RID p_immediate, RS::PrimitiveType p_rimitive, RID p_texture = RID()) = 0;
-	virtual void immediate_vertex(RID p_immediate, const Vector3 &p_vertex) = 0;
-	virtual void immediate_normal(RID p_immediate, const Vector3 &p_normal) = 0;
-	virtual void immediate_tangent(RID p_immediate, const Plane &p_tangent) = 0;
-	virtual void immediate_color(RID p_immediate, const Color &p_color) = 0;
-	virtual void immediate_uv(RID p_immediate, const Vector2 &tex_uv) = 0;
-	virtual void immediate_uv2(RID p_immediate, const Vector2 &tex_uv) = 0;
-	virtual void immediate_end(RID p_immediate) = 0;
-	virtual void immediate_clear(RID p_immediate) = 0;
-	virtual void immediate_set_material(RID p_immediate, RID p_material) = 0;
-	virtual RID immediate_get_material(RID p_immediate) const = 0;
-	virtual AABB immediate_get_aabb(RID p_immediate) const = 0;
-
 	/* SKELETON API */
 
 	virtual RID skeleton_allocate() = 0;
diff --git a/servers/rendering/rendering_server_default.h b/servers/rendering/rendering_server_default.h
index b9afeafbab..22c1f6d909 100644
--- a/servers/rendering/rendering_server_default.h
+++ b/servers/rendering/rendering_server_default.h
@@ -290,7 +290,9 @@ public:
 	FUNC2(mesh_set_blend_shape_mode, RID, BlendShapeMode)
 	FUNC1RC(BlendShapeMode, mesh_get_blend_shape_mode, RID)
 
-	FUNC4(mesh_surface_update_region, RID, int, int, const Vector<uint8_t> &)
+	FUNC4(mesh_surface_update_vertex_region, RID, int, int, const Vector<uint8_t> &)
+	FUNC4(mesh_surface_update_attribute_region, RID, int, int, const Vector<uint8_t> &)
+	FUNC4(mesh_surface_update_skin_region, RID, int, int, const Vector<uint8_t> &)
 
 	FUNC3(mesh_surface_set_material, RID, int, RID)
 	FUNC2RC(RID, mesh_surface_get_material, RID, int)
@@ -333,21 +335,6 @@ public:
 	FUNC2(multimesh_set_visible_instances, RID, int)
 	FUNC1RC(int, multimesh_get_visible_instances, RID)
 
-	/* IMMEDIATE API */
-
-	FUNCRIDSPLIT(immediate)
-	FUNC3(immediate_begin, RID, PrimitiveType, RID)
-	FUNC2(immediate_vertex, RID, const Vector3 &)
-	FUNC2(immediate_normal, RID, const Vector3 &)
-	FUNC2(immediate_tangent, RID, const Plane &)
-	FUNC2(immediate_color, RID, const Color &)
-	FUNC2(immediate_uv, RID, const Vector2 &)
-	FUNC2(immediate_uv2, RID, const Vector2 &)
-	FUNC1(immediate_end, RID)
-	FUNC1(immediate_clear, RID)
-	FUNC2(immediate_set_material, RID, RID)
-	FUNC1RC(RID, immediate_get_material, RID)
-
 	/* SKELETON API */
 
 	FUNCRIDSPLIT(skeleton)
diff --git a/servers/rendering_server.cpp b/servers/rendering_server.cpp
index f25f255321..b7e20631c9 100644
--- a/servers/rendering_server.cpp
+++ b/servers/rendering_server.cpp
@@ -1482,7 +1482,7 @@ void RenderingServer::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("mesh_get_blend_shape_count", "mesh"), &RenderingServer::mesh_get_blend_shape_count);
 	ClassDB::bind_method(D_METHOD("mesh_set_blend_shape_mode", "mesh", "mode"), &RenderingServer::mesh_set_blend_shape_mode);
 	ClassDB::bind_method(D_METHOD("mesh_get_blend_shape_mode", "mesh"), &RenderingServer::mesh_get_blend_shape_mode);
-	ClassDB::bind_method(D_METHOD("mesh_surface_update_region", "mesh", "surface", "offset", "data"), &RenderingServer::mesh_surface_update_region);
+
 	ClassDB::bind_method(D_METHOD("mesh_surface_set_material", "mesh", "surface", "material"), &RenderingServer::mesh_surface_set_material);
 	ClassDB::bind_method(D_METHOD("mesh_surface_get_material", "mesh", "surface"), &RenderingServer::mesh_surface_get_material);
 	ClassDB::bind_method(D_METHOD("mesh_surface_get_arrays", "mesh", "surface"), &RenderingServer::mesh_surface_get_arrays);
@@ -1510,21 +1510,6 @@ void RenderingServer::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("multimesh_get_visible_instances", "multimesh"), &RenderingServer::multimesh_get_visible_instances);
 	ClassDB::bind_method(D_METHOD("multimesh_set_buffer", "multimesh", "buffer"), &RenderingServer::multimesh_set_buffer);
 	ClassDB::bind_method(D_METHOD("multimesh_get_buffer", "multimesh"), &RenderingServer::multimesh_get_buffer);
-#ifndef _3D_DISABLED
-	ClassDB::bind_method(D_METHOD("immediate_create"), &RenderingServer::immediate_create);
-	ClassDB::bind_method(D_METHOD("immediate_begin", "immediate", "primitive", "texture"), &RenderingServer::immediate_begin, DEFVAL(RID()));
-	ClassDB::bind_method(D_METHOD("immediate_vertex", "immediate", "vertex"), &RenderingServer::immediate_vertex);
-	ClassDB::bind_method(D_METHOD("immediate_vertex_2d", "immediate", "vertex"), &RenderingServer::immediate_vertex_2d);
-	ClassDB::bind_method(D_METHOD("immediate_normal", "immediate", "normal"), &RenderingServer::immediate_normal);
-	ClassDB::bind_method(D_METHOD("immediate_tangent", "immediate", "tangent"), &RenderingServer::immediate_tangent);
-	ClassDB::bind_method(D_METHOD("immediate_color", "immediate", "color"), &RenderingServer::immediate_color);
-	ClassDB::bind_method(D_METHOD("immediate_uv", "immediate", "tex_uv"), &RenderingServer::immediate_uv);
-	ClassDB::bind_method(D_METHOD("immediate_uv2", "immediate", "tex_uv"), &RenderingServer::immediate_uv2);
-	ClassDB::bind_method(D_METHOD("immediate_end", "immediate"), &RenderingServer::immediate_end);
-	ClassDB::bind_method(D_METHOD("immediate_clear", "immediate"), &RenderingServer::immediate_clear);
-	ClassDB::bind_method(D_METHOD("immediate_set_material", "immediate", "material"), &RenderingServer::immediate_set_material);
-	ClassDB::bind_method(D_METHOD("immediate_get_material", "immediate"), &RenderingServer::immediate_get_material);
-#endif
 
 	ClassDB::bind_method(D_METHOD("skeleton_create"), &RenderingServer::skeleton_create);
 	ClassDB::bind_method(D_METHOD("skeleton_allocate_data", "skeleton", "bones", "is_2d_skeleton"), &RenderingServer::skeleton_allocate_data, DEFVAL(false));
@@ -2113,7 +2098,6 @@ void RenderingServer::_bind_methods() {
 	BIND_ENUM_CONSTANT(INSTANCE_NONE);
 	BIND_ENUM_CONSTANT(INSTANCE_MESH);
 	BIND_ENUM_CONSTANT(INSTANCE_MULTIMESH);
-	BIND_ENUM_CONSTANT(INSTANCE_IMMEDIATE);
 	BIND_ENUM_CONSTANT(INSTANCE_PARTICLES);
 	BIND_ENUM_CONSTANT(INSTANCE_PARTICLES_COLLISION);
 	BIND_ENUM_CONSTANT(INSTANCE_LIGHT);
@@ -2253,10 +2237,6 @@ void RenderingServer::mesh_add_surface_from_planes(RID p_mesh, const Vector<Plan
 	mesh_add_surface_from_mesh_data(p_mesh, mdata);
 }
 
-void RenderingServer::immediate_vertex_2d(RID p_immediate, const Vector2 &p_vertex) {
-	immediate_vertex(p_immediate, Vector3(p_vertex.x, p_vertex.y, 0));
-}
-
 RID RenderingServer::instance_create2(RID p_base, RID p_scenario) {
 	RID instance = instance_create();
 	instance_set_base(instance, p_base);
diff --git a/servers/rendering_server.h b/servers/rendering_server.h
index 0a568eeb13..431d1a827c 100644
--- a/servers/rendering_server.h
+++ b/servers/rendering_server.h
@@ -342,7 +342,9 @@ public:
 	virtual void mesh_set_blend_shape_mode(RID p_mesh, BlendShapeMode p_mode) = 0;
 	virtual BlendShapeMode mesh_get_blend_shape_mode(RID p_mesh) const = 0;
 
-	virtual void mesh_surface_update_region(RID p_mesh, int p_surface, int p_offset, const Vector<uint8_t> &p_data) = 0;
+	virtual void mesh_surface_update_vertex_region(RID p_mesh, int p_surface, int p_offset, const Vector<uint8_t> &p_data) = 0;
+	virtual void mesh_surface_update_attribute_region(RID p_mesh, int p_surface, int p_offset, const Vector<uint8_t> &p_data) = 0;
+	virtual void mesh_surface_update_skin_region(RID p_mesh, int p_surface, int p_offset, const Vector<uint8_t> &p_data) = 0;
 
 	virtual void mesh_surface_set_material(RID p_mesh, int p_surface, RID p_material) = 0;
 	virtual RID mesh_surface_get_material(RID p_mesh, int p_surface) const = 0;
@@ -390,22 +392,6 @@ public:
 	virtual void multimesh_set_visible_instances(RID p_multimesh, int p_visible) = 0;
 	virtual int multimesh_get_visible_instances(RID p_multimesh) const = 0;
 
-	/* IMMEDIATE API */
-
-	virtual RID immediate_create() = 0;
-	virtual void immediate_begin(RID p_immediate, PrimitiveType p_rimitive, RID p_texture = RID()) = 0;
-	virtual void immediate_vertex(RID p_immediate, const Vector3 &p_vertex) = 0;
-	virtual void immediate_vertex_2d(RID p_immediate, const Vector2 &p_vertex);
-	virtual void immediate_normal(RID p_immediate, const Vector3 &p_normal) = 0;
-	virtual void immediate_tangent(RID p_immediate, const Plane &p_tangent) = 0;
-	virtual void immediate_color(RID p_immediate, const Color &p_color) = 0;
-	virtual void immediate_uv(RID p_immediate, const Vector2 &tex_uv) = 0;
-	virtual void immediate_uv2(RID p_immediate, const Vector2 &tex_uv) = 0;
-	virtual void immediate_end(RID p_immediate) = 0;
-	virtual void immediate_clear(RID p_immediate) = 0;
-	virtual void immediate_set_material(RID p_immediate, RID p_material) = 0;
-	virtual RID immediate_get_material(RID p_immediate) const = 0;
-
 	/* SKELETON API */
 
 	virtual RID skeleton_create() = 0;
@@ -1146,7 +1132,6 @@ public:
 		INSTANCE_NONE,
 		INSTANCE_MESH,
 		INSTANCE_MULTIMESH,
-		INSTANCE_IMMEDIATE,
 		INSTANCE_PARTICLES,
 		INSTANCE_PARTICLES_COLLISION,
 		INSTANCE_LIGHT,
@@ -1158,7 +1143,7 @@ public:
 		INSTANCE_VISIBLITY_NOTIFIER,
 		INSTANCE_MAX,
 
-		INSTANCE_GEOMETRY_MASK = (1 << INSTANCE_MESH) | (1 << INSTANCE_MULTIMESH) | (1 << INSTANCE_IMMEDIATE) | (1 << INSTANCE_PARTICLES)
+		INSTANCE_GEOMETRY_MASK = (1 << INSTANCE_MESH) | (1 << INSTANCE_MULTIMESH) | (1 << INSTANCE_PARTICLES)
 	};
 
 	virtual RID instance_create2(RID p_base, RID p_scenario);