429afe0c62
Problem: the Blender synchronization process creates and tags nodes for usage. It does this by directly adding and removing nodes from the scene data. If some node is not tagged as used at the end of a synchronization, it then deletes the node from the scene. This poses a problem when it comes to supporting procedural nodes who can create other nodes not known by the Blender synchonization system, which will remove them. Nodes now have a NodeOwner, which is set after creation. Those owners for now are the Scene for scene level nodes and ShaderGraph for shader nodes. Instead of creating and deleting nodes using `new` and `delete` explicitely, we now use `create_node` and `delete_node` methods found on the owners. `delete_node` will assert that the owner is the right one. Whenever a scene level node is created or deleted, the appropriate node manager is tagged for an update, freeing this responsability from BlenderSync or other software exporters. Concerning BlenderSync, the `id_maps` do not explicitely manipulate scene data anymore, they only keep track of which nodes are used, employing the scene to create and delete them. To achieve this, the ParticleSystem is now a Node, although it does not have any sockets. This is part of T79131. Reviewed By: #cycles, brecht Maniphest Tasks: T79131 Differential Revision: https://developer.blender.org/D8540
115 lines
3.9 KiB
C++
115 lines
3.9 KiB
C++
/*
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* Copyright 2011-2016 Blender Foundation
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#pragma once
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#include "graph/node_type.h"
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#include "util/util_array.h"
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#include "util/util_map.h"
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#include "util/util_param.h"
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CCL_NAMESPACE_BEGIN
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class MD5Hash;
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struct Node;
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struct NodeType;
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struct Transform;
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/* Node */
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struct NodeOwner {
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virtual ~NodeOwner();
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};
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struct Node {
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explicit Node(const NodeType *type, ustring name = ustring());
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virtual ~Node() = 0;
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/* set values */
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void set(const SocketType &input, bool value);
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void set(const SocketType &input, int value);
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void set(const SocketType &input, uint value);
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void set(const SocketType &input, float value);
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void set(const SocketType &input, float2 value);
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void set(const SocketType &input, float3 value);
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void set(const SocketType &input, const char *value);
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void set(const SocketType &input, ustring value);
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void set(const SocketType &input, const Transform &value);
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void set(const SocketType &input, Node *value);
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/* set array values. the memory from the input array will taken over
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* by the node and the input array will be empty after return */
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void set(const SocketType &input, array<bool> &value);
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void set(const SocketType &input, array<int> &value);
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void set(const SocketType &input, array<float> &value);
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void set(const SocketType &input, array<float2> &value);
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void set(const SocketType &input, array<float3> &value);
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void set(const SocketType &input, array<ustring> &value);
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void set(const SocketType &input, array<Transform> &value);
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void set(const SocketType &input, array<Node *> &value);
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/* get values */
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bool get_bool(const SocketType &input) const;
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int get_int(const SocketType &input) const;
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uint get_uint(const SocketType &input) const;
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float get_float(const SocketType &input) const;
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float2 get_float2(const SocketType &input) const;
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float3 get_float3(const SocketType &input) const;
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ustring get_string(const SocketType &input) const;
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Transform get_transform(const SocketType &input) const;
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Node *get_node(const SocketType &input) const;
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/* get array values */
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const array<bool> &get_bool_array(const SocketType &input) const;
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const array<int> &get_int_array(const SocketType &input) const;
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const array<float> &get_float_array(const SocketType &input) const;
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const array<float2> &get_float2_array(const SocketType &input) const;
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const array<float3> &get_float3_array(const SocketType &input) const;
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const array<ustring> &get_string_array(const SocketType &input) const;
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const array<Transform> &get_transform_array(const SocketType &input) const;
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const array<Node *> &get_node_array(const SocketType &input) const;
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/* generic values operations */
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bool has_default_value(const SocketType &input) const;
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void set_default_value(const SocketType &input);
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bool equals_value(const Node &other, const SocketType &input) const;
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void copy_value(const SocketType &input, const Node &other, const SocketType &other_input);
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/* equals */
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bool equals(const Node &other) const;
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/* compute hash of node and its socket values */
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void hash(MD5Hash &md5);
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/* Get total size of this node. */
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size_t get_total_size_in_bytes() const;
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/* Type testing, taking into account base classes. */
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bool is_a(const NodeType *type);
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ustring name;
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const NodeType *type;
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const NodeOwner *get_owner() const;
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void set_owner(const NodeOwner *owner_);
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protected:
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const NodeOwner *owner;
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};
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CCL_NAMESPACE_END
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