Hans Goudey
eaa87101cd
With the ultimate goal of simplifying drawing and evaluation, this patch makes the following changes and removes code: - Use `Mesh` instead of `DispList` for evaluated basis metaballs. - Remove all `DispList` drawing code, which is now unused. - Simplify code that converts evaluated metaballs to meshes. - Store the evaluated mesh in the evaluated geometry set. This has the following indirect benefits: - Evaluated meshes from metaball objects can be used in geometry nodes. - Renderers can ignore evaluated metaball objects completely - Cycles rendering no longer has to convert to mesh from `DispList`. - We get closer to removing `DispList` completely. - Optimizations to mesh rendering will also apply to metaball objects. The vertex normals on the evaluated mesh are technically invalid; the regular calculation wouldn't reproduce them. Metaball objects don't support modifiers though, so it shouldn't be a problem. Eventually we can support per-vertex custom normals (T93551). Differential Revision: https://developer.blender.org/D14593
120 lines
4.8 KiB
C++
120 lines
4.8 KiB
C++
/* SPDX-License-Identifier: GPL-2.0-or-later
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* Copyright 2001-2002 NaN Holding BV. All rights reserved. */
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#pragma once
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/** \file
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* \ingroup bke
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*/
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#include "BLI_compiler_attrs.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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struct BMEditMesh;
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struct BPoint;
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struct Depsgraph;
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struct Lattice;
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struct MDeformVert;
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struct Main;
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struct Mesh;
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struct Object;
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struct Scene;
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void BKE_lattice_resize(struct Lattice *lt, int u, int v, int w, struct Object *ltOb);
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struct Lattice *BKE_lattice_add(struct Main *bmain, const char *name);
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void calc_lat_fudu(int flag, int res, float *r_fu, float *r_du);
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void outside_lattice(struct Lattice *lt);
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float (*BKE_lattice_vert_coords_alloc(const struct Lattice *lt, int *r_vert_len))[3];
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void BKE_lattice_vert_coords_get(const struct Lattice *lt, float (*vert_coords)[3]);
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void BKE_lattice_vert_coords_apply_with_mat4(struct Lattice *lt,
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const float (*vert_coords)[3],
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const float mat[4][4]);
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void BKE_lattice_vert_coords_apply(struct Lattice *lt, const float (*vert_coords)[3]);
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void BKE_lattice_modifiers_calc(struct Depsgraph *depsgraph,
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struct Scene *scene,
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struct Object *ob);
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struct MDeformVert *BKE_lattice_deform_verts_get(const struct Object *oblatt);
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struct BPoint *BKE_lattice_active_point_get(struct Lattice *lt);
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struct BoundBox *BKE_lattice_boundbox_get(struct Object *ob);
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void BKE_lattice_minmax_dl(struct Object *ob, struct Lattice *lt, float min[3], float max[3]);
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void BKE_lattice_minmax(struct Lattice *lt, float min[3], float max[3]);
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void BKE_lattice_center_median(struct Lattice *lt, float cent[3]);
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void BKE_lattice_center_bounds(struct Lattice *lt, float cent[3]);
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void BKE_lattice_translate(struct Lattice *lt, const float offset[3], bool do_keys);
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void BKE_lattice_transform(struct Lattice *lt, const float mat[4][4], bool do_keys);
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bool BKE_lattice_is_any_selected(const struct Lattice *lt);
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int BKE_lattice_index_from_uvw(struct Lattice *lt, int u, int v, int w);
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void BKE_lattice_index_to_uvw(struct Lattice *lt, int index, int *r_u, int *r_v, int *r_w);
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int BKE_lattice_index_flip(struct Lattice *lt, int index, bool flip_u, bool flip_v, bool flip_w);
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void BKE_lattice_bitmap_from_flag(
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struct Lattice *lt, unsigned int *bitmap, uint8_t flag, bool clear, bool respecthide);
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/* **** Depsgraph evaluation **** */
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struct Depsgraph;
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void BKE_lattice_eval_geometry(struct Depsgraph *depsgraph, struct Lattice *latt);
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/* Draw Cache */
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enum {
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BKE_LATTICE_BATCH_DIRTY_ALL = 0,
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BKE_LATTICE_BATCH_DIRTY_SELECT,
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};
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void BKE_lattice_batch_cache_dirty_tag(struct Lattice *lt, int mode);
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void BKE_lattice_batch_cache_free(struct Lattice *lt);
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extern void (*BKE_lattice_batch_cache_dirty_tag_cb)(struct Lattice *lt, int mode);
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extern void (*BKE_lattice_batch_cache_free_cb)(struct Lattice *lt);
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/* -------------------------------------------------------------------- */
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/** \name Deform 3D Coordinates by Lattice (lattice_deform.c)
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* \{ */
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struct LatticeDeformData *BKE_lattice_deform_data_create(
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const struct Object *oblatt, const struct Object *ob) ATTR_WARN_UNUSED_RESULT;
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void BKE_lattice_deform_data_eval_co(struct LatticeDeformData *lattice_deform_data,
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float co[3],
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float weight);
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void BKE_lattice_deform_data_destroy(struct LatticeDeformData *lattice_deform_data);
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void BKE_lattice_deform_coords(const struct Object *ob_lattice,
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const struct Object *ob_target,
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float (*vert_coords)[3],
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int vert_coords_len,
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short flag,
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const char *defgrp_name,
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float fac);
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void BKE_lattice_deform_coords_with_mesh(const struct Object *ob_lattice,
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const struct Object *ob_target,
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float (*vert_coords)[3],
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int vert_coords_len,
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short flag,
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const char *defgrp_name,
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float fac,
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const struct Mesh *me_target);
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void BKE_lattice_deform_coords_with_editmesh(const struct Object *ob_lattice,
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const struct Object *ob_target,
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float (*vert_coords)[3],
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int vert_coords_len,
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short flag,
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const char *defgrp_name,
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float fac,
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struct BMEditMesh *em_target);
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/** \} */
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#ifdef __cplusplus
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}
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#endif
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