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/* SPDX-License-Identifier: GPL-2.0-or-later
* Copyright 2001-2002 NaN Holding BV. All rights reserved. */
#pragma once
/** \file
* \ingroup bke
*/
#ifdef __cplusplus
extern "C" {
#endif
struct Depsgraph;
struct ID;
struct ListBase;
struct Object;
struct ParticleSystem;
struct Scene;
struct ViewLayer;
struct ViewerPath;
struct GeometrySet;
/* ---------------------------------------------------- */
/* Dupli-Geometry */
/**
* \return a #ListBase of #DupliObject.
*/
struct ListBase *object_duplilist(struct Depsgraph *depsgraph,
struct Scene *sce,
struct Object *ob);
/**
* \return a #ListBase of #DupliObject for the preview geometry referenced by the #ViewerPath.
*/
struct ListBase *object_duplilist_preview(struct Depsgraph *depsgraph,
struct Scene *scene,
struct Object *ob,
const struct ViewerPath *viewer_path);
void free_object_duplilist(struct ListBase *lb);
typedef struct DupliObject {
struct DupliObject *next, *prev;
/* Object whose geometry is instanced. */
struct Object *ob;
/* Data owned by the object above that is instanced. This might not be the same as `ob->data`. */
struct ID *ob_data;
float mat[4][4];
float orco[3], uv[2];
short type; /* from Object.transflag */
char no_draw;
/* If this dupli object is belongs to a preview, this is non-null. */
const struct GeometrySet *preview_base_geometry;
/* Index of the top-level instance this dupli is part of or -1 when unused. */
int preview_instance_index;
/* Persistent identifier for a dupli object, for inter-frame matching of
* objects with motion blur, or inter-update matching for syncing. */
int persistent_id[8]; /* MAX_DUPLI_RECUR */
/* Particle this dupli was generated from. */
struct ParticleSystem *particle_system;
/* Geometry set stack for instance attributes; for each level lists the
* geometry set and instance index within it.
*
* Only non-null entries are stored, ordered from innermost to outermost.
* To save memory, these arrays are allocated smaller than persistent_id,
* assuming that not every entry will be associated with a GeometrySet; any
* size between 1 and MAX_DUPLI_RECUR can be used without issues.
*/
int instance_idx[4];
const struct GeometrySet *instance_data[4];
/* Random ID for shading */
unsigned int random_id;
} DupliObject;
/** Look up the RGBA value of a uniform shader attribute.
* \return true if the attribute was found; if not, r_value is also set to zero. */
bool BKE_object_dupli_find_rgba_attribute(struct Object *ob,
struct DupliObject *dupli,
struct Object *dupli_parent,
const char *name,
float r_value[4]);
/** Look up the RGBA value of a view layer/scene/world shader attribute.
* \return true if the attribute was found; if not, r_value is also set to zero. */
bool BKE_view_layer_find_rgba_attribute(struct Scene *scene,
struct ViewLayer *layer,
const char *name,
float r_value[4]);
#ifdef __cplusplus
}
#endif
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