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
79 lines
1.7 KiB
C++
79 lines
1.7 KiB
C++
/*
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* Copyright 2011-2013 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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#ifndef __PARTICLES_H__
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#define __PARTICLES_H__
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#include "util/util_array.h"
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#include "util/util_types.h"
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#include "graph/node.h"
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CCL_NAMESPACE_BEGIN
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class Device;
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class DeviceScene;
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class Progress;
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class Scene;
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/* Particle System */
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struct Particle {
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int index;
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float age;
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float lifetime;
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float3 location;
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float4 rotation;
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float size;
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float3 velocity;
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float3 angular_velocity;
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};
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class ParticleSystem : public Node {
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public:
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NODE_DECLARE
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ParticleSystem();
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~ParticleSystem();
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void tag_update(Scene *scene);
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array<Particle> particles;
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};
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/* ParticleSystem Manager */
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class ParticleSystemManager {
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public:
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bool need_update;
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ParticleSystemManager();
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~ParticleSystemManager();
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void device_update_particles(Device *device,
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DeviceScene *dscene,
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Scene *scene,
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Progress &progress);
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void device_update(Device *device, DeviceScene *dscene, Scene *scene, Progress &progress);
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void device_free(Device *device, DeviceScene *dscene);
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void tag_update(Scene *scene);
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};
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CCL_NAMESPACE_END
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#endif /* __PARTICLES_H__ */
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