BKE_displist.h

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/* SPDX-FileCopyrightText: 2001-2002 NaN Holding BV. All rights reserved.
 *
 * SPDX-License-Identifier: GPL-2.0-or-later */
 
#pragma once


enum {
  DL_POLY = 0,
  DL_SEGM = 1,
  DL_SURF = 2,
  DL_INDEX3 = 4,
  // DL_VERTCOL = 6, /* UNUSED */
  DL_VERTS = 7,
};

enum {
  DL_CYCL_U = (1 << 0),
  DL_CYCL_V = (1 << 1),
 
  DL_FRONT_CURVE = (1 << 2),
  DL_BACK_CURVE = (1 << 3),
};
 
/* prototypes */
 
struct Depsgraph;
struct ListBase;
struct Object;
struct Scene;
 
/* Used for curves, nurbs, meta-balls. */
typedef struct DispList {
  struct DispList *next, *prev;
  short type, flag;
  int parts, nr;
  short col, rt; /* Currently only used for smooth flag. */
  float *verts, *nors;
  int *index;
  int charidx;
  int totindex; /* indexed array drawing surfaces */
} DispList;
 
DispList *BKE_displist_find(struct ListBase *lb, int type);
void BKE_displist_free(struct ListBase *lb);
 
void BKE_displist_make_curveTypes(struct Depsgraph *depsgraph,
                                  const struct Scene *scene,
                                  struct Object *ob,
                                  bool for_render);
 
void BKE_curve_calc_modifiers_pre(struct Depsgraph *depsgraph,
                                  const struct Scene *scene,
                                  struct Object *ob,
                                  struct ListBase *source_nurb,
                                  struct ListBase *target_nurb,
                                  bool for_render);
bool BKE_displist_surfindex_get(
    const struct DispList *dl, int a, int *b, int *p1, int *p2, int *p3, int *p4);

void BKE_displist_fill(const struct ListBase *dispbase,
                       struct ListBase *to,
                       const float normal_proj[3],
                       bool flip_normal);
 
float BKE_displist_calc_taper(struct Depsgraph *depsgraph,
                              const struct Scene *scene,
                              struct Object *taperobj,
                              int cur,
                              int tot);
 
void BKE_displist_minmax(const struct ListBase *dispbase, float min[3], float max[3]);