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blender-archive/source/blender/depsgraph/DEG_depsgraph_build.h
Jacques Lucke b55c78a289 Simulation: Add modifier to access simulation data
For now the "Simulation" modifier only exists for point cloud objects, because
we need this for the particle system. Right now, the modifier is doing nothing.

There is a new `DEG_add_simulation_relation` function that is used
by the modifier to make sure that the simulation is evaluated before
the modifier is executed.

Reviewers: brecht, sergey

Differential Revision: https://developer.blender.org/D7549
2020-05-13 12:39:17 +02:00

206 lines
8.0 KiB
C++

/*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* The Original Code is Copyright (C) 2013 Blender Foundation.
* All rights reserved.
*/
/** \file
* \ingroup depsgraph
*
* Public API for Depsgraph
*/
#ifndef __DEG_DEPSGRAPH_BUILD_H__
#define __DEG_DEPSGRAPH_BUILD_H__
/* ************************************************* */
/* Dependency Graph */
struct Depsgraph;
/* ------------------------------------------------ */
struct CacheFile;
struct CustomData_MeshMasks;
struct ID;
struct Main;
struct Object;
struct Scene;
struct Simulation;
struct ViewLayer;
struct bNodeTree;
#include "BLI_sys_types.h"
#ifdef __cplusplus
extern "C" {
#endif
/* Graph Building -------------------------------- */
/* Build depsgraph for the given scene, and dump results in given graph container. */
void DEG_graph_build_from_view_layer(struct Depsgraph *graph,
struct Main *bmain,
struct Scene *scene,
struct ViewLayer *view_layer);
/* Special version of builder which produces dependency graph suitable for the render pipeline.
* It will contain sequencer and compositor (if needed) and all their dependencies. */
void DEG_graph_build_for_render_pipeline(struct Depsgraph *graph,
struct Main *bmain,
struct Scene *scene,
struct ViewLayer *view_layer);
/* Builds minimal dependency graph for compositor preview.
*
* Note that compositor editor might have pinned node tree, which is different from scene's node
* tree.
*/
void DEG_graph_build_for_compositor_preview(struct Depsgraph *graph,
struct Main *bmain,
struct Scene *scene,
struct ViewLayer *view_layer,
struct bNodeTree *nodetree);
void DEG_graph_build_from_ids(struct Depsgraph *graph,
struct Main *bmain,
struct Scene *scene,
struct ViewLayer *view_layer,
struct ID **ids,
const int num_ids);
/* Tag relations from the given graph for update. */
void DEG_graph_tag_relations_update(struct Depsgraph *graph);
/* Create or update relations in the specified graph. */
void DEG_graph_relations_update(struct Depsgraph *graph,
struct Main *bmain,
struct Scene *scene,
struct ViewLayer *view_layer);
/* Tag all relations in the database for update.*/
void DEG_relations_tag_update(struct Main *bmain);
/* Add Dependencies ----------------------------- */
/* Handle for components to define their dependencies from callbacks.
* This is generated by the depsgraph and passed to dependency callbacks
* as a symbolic reference to the current DepsNode.
* All relations will be defined in reference to that node.
*/
struct DepsNodeHandle;
typedef enum eDepsSceneComponentType {
/* Parameters Component - Default when nothing else fits
* (i.e. just SDNA property setting). */
DEG_SCENE_COMP_PARAMETERS,
/* Animation Component
* TODO(sergey): merge in with parameters? */
DEG_SCENE_COMP_ANIMATION,
/* Sequencer Component (Scene Only). */
DEG_SCENE_COMP_SEQUENCER,
} eDepsSceneComponentType;
typedef enum eDepsObjectComponentType {
/* Used in query API, to denote which component caller is interested in. */
DEG_OB_COMP_ANY,
/* Parameters Component - Default when nothing else fits
* (i.e. just SDNA property setting). */
DEG_OB_COMP_PARAMETERS,
/* Generic "Proxy-Inherit" Component.
* TODO(sergey): Also for instancing of subgraphs? */
DEG_OB_COMP_PROXY,
/* Animation Component.
*
* TODO(sergey): merge in with parameters? */
DEG_OB_COMP_ANIMATION,
/* Transform Component (Parenting/Constraints) */
DEG_OB_COMP_TRANSFORM,
/* Geometry Component (Mesh/Displist) */
DEG_OB_COMP_GEOMETRY,
/* Evaluation-Related Outer Types (with Sub-data) */
/* Pose Component - Owner/Container of Bones Eval */
DEG_OB_COMP_EVAL_POSE,
/* Bone Component - Child/Sub-component of Pose */
DEG_OB_COMP_BONE,
/* Material Shading Component */
DEG_OB_COMP_SHADING,
/* Cache Component */
DEG_OB_COMP_CACHE,
} eDepsObjectComponentType;
void DEG_add_scene_relation(struct DepsNodeHandle *node_handle,
struct Scene *scene,
eDepsSceneComponentType component,
const char *description);
void DEG_add_object_relation(struct DepsNodeHandle *node_handle,
struct Object *object,
eDepsObjectComponentType component,
const char *description);
void DEG_add_simulation_relation(struct DepsNodeHandle *node_handle,
struct Simulation *simulation,
const char *description);
void DEG_add_bone_relation(struct DepsNodeHandle *handle,
struct Object *object,
const char *bone_name,
eDepsObjectComponentType component,
const char *description);
void DEG_add_object_cache_relation(struct DepsNodeHandle *handle,
struct CacheFile *cache_file,
eDepsObjectComponentType component,
const char *description);
/* Adds relation from DEG_OPCODE_GENERIC_DATABLOCK_UPDATE of a given ID.
* Is used for such entities as textures and images. */
void DEG_add_generic_id_relation(struct DepsNodeHandle *node_handle,
struct ID *id,
const char *description);
/* Special function which is used from modifiers' updateDepsgraph() callback
* to indicate that the modifier needs to know transformation of the object
* which that modifier belongs to.
* This function will take care of checking which operation is required to
* have transformation for the modifier, taking into account possible simulation
* solvers. */
void DEG_add_modifier_to_transform_relation(struct DepsNodeHandle *node_handle,
const char *description);
/* Adds relations from the given component of a given object to the given node
* handle AND the component to the point cache component of the node's ID. */
void DEG_add_object_pointcache_relation(struct DepsNodeHandle *node_handle,
struct Object *object,
eDepsObjectComponentType component,
const char *description);
void DEG_add_special_eval_flag(struct DepsNodeHandle *handle, struct ID *id, uint32_t flag);
void DEG_add_customdata_mask(struct DepsNodeHandle *handle,
struct Object *object,
const struct CustomData_MeshMasks *masks);
struct ID *DEG_get_id_from_handle(struct DepsNodeHandle *node_handle);
struct Depsgraph *DEG_get_graph_from_handle(struct DepsNodeHandle *node_handle);
/* ************************************************ */
#ifdef __cplusplus
} /* extern "C" */
#endif
#endif /* __DEG_DEPSGRAPH_BUILD_H__ */