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tornavis/source/blender/blenkernel/intern/paint.c

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/*
* ***** BEGIN GPL LICENSE BLOCK *****
*
* 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) 2009 by Nicholas Bishop
* All rights reserved.
*
* The Original Code is: all of this file.
*
* Contributor(s): none yet.
*
* ***** END GPL LICENSE BLOCK *****
*/
/** \file blender/blenkernel/intern/paint.c
* \ingroup bke
*/
#include <stdlib.h>
#include <string.h>
#include "MEM_guardedalloc.h"
#include "DNA_object_types.h"
#include "DNA_mesh_types.h"
#include "DNA_meshdata_types.h"
#include "DNA_modifier_types.h"
#include "DNA_scene_types.h"
#include "DNA_brush_types.h"
#include "DNA_space_types.h"
#include "BLI_bitmap.h"
#include "BLI_utildefines.h"
#include "BLI_math_vector.h"
#include "BLI_listbase.h"
#include "BKE_brush.h"
#include "BKE_colortools.h"
#include "BKE_deform.h"
#include "BKE_main.h"
#include "BKE_context.h"
#include "BKE_crazyspace.h"
#include "BKE_depsgraph.h"
#include "BKE_global.h"
#include "BKE_image.h"
#include "BKE_key.h"
#include "BKE_library.h"
#include "BKE_mesh.h"
#include "BKE_modifier.h"
#include "BKE_object.h"
#include "BKE_paint.h"
#include "BKE_pbvh.h"
#include "BKE_subsurf.h"
#include "bmesh.h"
const char PAINT_CURSOR_SCULPT[3] = {255, 100, 100};
const char PAINT_CURSOR_VERTEX_PAINT[3] = {255, 255, 255};
const char PAINT_CURSOR_WEIGHT_PAINT[3] = {200, 200, 255};
const char PAINT_CURSOR_TEXTURE_PAINT[3] = {255, 255, 255};
static eOverlayControlFlags overlay_flags = 0;
void BKE_paint_invalidate_overlay_tex(Scene *scene, const Tex *tex)
{
Paint *p = BKE_paint_get_active(scene);
Brush *br = p->brush;
if (!br)
return;
if (br->mtex.tex == tex)
overlay_flags |= PAINT_INVALID_OVERLAY_TEXTURE_PRIMARY;
if (br->mask_mtex.tex == tex)
overlay_flags |= PAINT_INVALID_OVERLAY_TEXTURE_SECONDARY;
}
void BKE_paint_invalidate_cursor_overlay(Scene *scene, CurveMapping *curve)
{
Paint *p = BKE_paint_get_active(scene);
Brush *br = p->brush;
if (br && br->curve == curve)
overlay_flags |= PAINT_INVALID_OVERLAY_CURVE;
}
void BKE_paint_invalidate_overlay_all(void)
{
overlay_flags |= (PAINT_INVALID_OVERLAY_TEXTURE_SECONDARY |
PAINT_INVALID_OVERLAY_TEXTURE_PRIMARY |
PAINT_INVALID_OVERLAY_CURVE);
}
eOverlayControlFlags BKE_paint_get_overlay_flags(void)
{
return overlay_flags;
}
void BKE_paint_set_overlay_override(eOverlayFlags flags)
{
if (flags & BRUSH_OVERLAY_OVERRIDE_MASK) {
if (flags & BRUSH_OVERLAY_CURSOR_OVERRIDE_ON_STROKE)
overlay_flags |= PAINT_OVERLAY_OVERRIDE_CURSOR;
if (flags & BRUSH_OVERLAY_PRIMARY_OVERRIDE_ON_STROKE)
overlay_flags |= PAINT_OVERLAY_OVERRIDE_PRIMARY;
if (flags & BRUSH_OVERLAY_SECONDARY_OVERRIDE_ON_STROKE)
overlay_flags |= PAINT_OVERLAY_OVERRIDE_SECONDARY;
}
else {
overlay_flags &= ~(PAINT_OVERRIDE_MASK);
}
}
void BKE_paint_reset_overlay_invalid(eOverlayControlFlags flag)
{
overlay_flags &= ~(flag);
}
Paint *BKE_paint_get_active_from_paintmode(Scene *sce, ePaintMode mode)
{
if (sce) {
ToolSettings *ts = sce->toolsettings;
switch (mode) {
case ePaintSculpt:
return &ts->sculpt->paint;
case ePaintVertex:
return &ts->vpaint->paint;
case ePaintWeight:
return &ts->wpaint->paint;
case ePaintTexture2D:
case ePaintTextureProjective:
return &ts->imapaint.paint;
case ePaintSculptUV:
return &ts->uvsculpt->paint;
case ePaintInvalid:
return NULL;
default:
return &ts->imapaint.paint;
}
}
return NULL;
}
Paint *BKE_paint_get_active(Scene *sce)
{
if (sce) {
ToolSettings *ts = sce->toolsettings;
if (sce->basact && sce->basact->object) {
switch (sce->basact->object->mode) {
case OB_MODE_SCULPT:
return &ts->sculpt->paint;
case OB_MODE_VERTEX_PAINT:
return &ts->vpaint->paint;
case OB_MODE_WEIGHT_PAINT:
return &ts->wpaint->paint;
case OB_MODE_TEXTURE_PAINT:
return &ts->imapaint.paint;
case OB_MODE_EDIT:
if (ts->use_uv_sculpt)
return &ts->uvsculpt->paint;
return &ts->imapaint.paint;
}
}
/* default to image paint */
return &ts->imapaint.paint;
}
return NULL;
}
Paint *BKE_paint_get_active_from_context(const bContext *C)
{
Scene *sce = CTX_data_scene(C);
SpaceImage *sima;
if (sce) {
ToolSettings *ts = sce->toolsettings;
Object *obact = NULL;
if (sce->basact && sce->basact->object)
obact = sce->basact->object;
if ((sima = CTX_wm_space_image(C)) != NULL) {
if (obact && obact->mode == OB_MODE_EDIT) {
if (sima->mode == SI_MODE_PAINT)
return &ts->imapaint.paint;
else if (ts->use_uv_sculpt)
return &ts->uvsculpt->paint;
}
else {
return &ts->imapaint.paint;
}
}
else {
return BKE_paint_get_active(sce);
}
}
return NULL;
}
ePaintMode BKE_paintmode_get_active_from_context(const bContext *C)
{
Scene *sce = CTX_data_scene(C);
SpaceImage *sima;
if (sce) {
ToolSettings *ts = sce->toolsettings;
Object *obact = NULL;
if (sce->basact && sce->basact->object)
obact = sce->basact->object;
if ((sima = CTX_wm_space_image(C)) != NULL) {
if (obact && obact->mode == OB_MODE_EDIT) {
if (sima->mode == SI_MODE_PAINT)
return ePaintTexture2D;
else if (ts->use_uv_sculpt)
return ePaintSculptUV;
}
else {
return ePaintTexture2D;
}
}
else if (obact) {
switch (obact->mode) {
case OB_MODE_SCULPT:
return ePaintSculpt;
case OB_MODE_VERTEX_PAINT:
return ePaintVertex;
case OB_MODE_WEIGHT_PAINT:
return ePaintWeight;
case OB_MODE_TEXTURE_PAINT:
return ePaintTextureProjective;
case OB_MODE_EDIT:
if (ts->use_uv_sculpt)
return ePaintSculptUV;
return ePaintTexture2D;
default:
return ePaintTexture2D;
}
}
else {
/* default to image paint */
return ePaintTexture2D;
}
}
return ePaintInvalid;
}
Brush *BKE_paint_brush(Paint *p)
{
return p ? p->brush : NULL;
}
void BKE_paint_brush_set(Paint *p, Brush *br)
{
if (p) {
id_us_min((ID *)p->brush);
id_us_plus((ID *)br);
p->brush = br;
}
}
/** Free (or release) any data used by this paint curve (does not free the pcurve itself). */
void BKE_paint_curve_free(PaintCurve *pc)
{
MEM_SAFE_FREE(pc->points);
pc->tot_points = 0;
}
PaintCurve *BKE_paint_curve_add(Main *bmain, const char *name)
{
PaintCurve *pc;
pc = BKE_libblock_alloc(bmain, ID_PC, name, 0);
return pc;
}
/**
* Only copy internal data of PaintCurve ID from source to already allocated/initialized destination.
* You probably nerver want to use that directly, use id_copy or BKE_id_copy_ex for typical needs.
*
* WARNING! This function will not handle ID user count!
*
* \param flag Copying options (see BKE_library.h's LIB_ID_COPY_... flags for more).
*/
void BKE_paint_curve_copy_data(Main *UNUSED(bmain), PaintCurve *pc_dst, const PaintCurve *pc_src, const int UNUSED(flag))
{
if (pc_src->tot_points != 0) {
pc_dst->points = MEM_dupallocN(pc_src->points);
}
}
PaintCurve *BKE_paint_curve_copy(Main *bmain, const PaintCurve *pc)
{
PaintCurve *pc_copy;
BKE_id_copy_ex(bmain, &pc->id, (ID **)&pc_copy, 0, false);
return pc_copy;
}
void BKE_paint_curve_make_local(Main *bmain, PaintCurve *pc, const bool lib_local)
{
BKE_id_make_local_generic(bmain, &pc->id, true, lib_local);
}
Palette *BKE_paint_palette(Paint *p)
{
return p ? p->palette : NULL;
}
void BKE_paint_palette_set(Paint *p, Palette *palette)
{
if (p) {
id_us_min((ID *)p->palette);
id_us_plus((ID *)palette);
p->palette = palette;
}
}
void BKE_paint_curve_set(Brush *br, PaintCurve *pc)
{
if (br) {
id_us_min((ID *)br->paint_curve);
id_us_plus((ID *)pc);
br->paint_curve = pc;
}
}
void BKE_paint_curve_clamp_endpoint_add_index(PaintCurve *pc, const int add_index)
{
pc->add_index = (add_index || pc->tot_points == 1) ? (add_index + 1) : 0;
}
/* remove colour from palette. Must be certain color is inside the palette! */
void BKE_palette_color_remove(Palette *palette, PaletteColor *color)
{
if (BLI_listbase_count_at_most(&palette->colors, palette->active_color) == palette->active_color) {
palette->active_color--;
}
BLI_remlink(&palette->colors, color);
if (palette->active_color < 0 && !BLI_listbase_is_empty(&palette->colors)) {
palette->active_color = 0;
}
MEM_freeN(color);
}
void BKE_palette_clear(Palette *palette)
{
BLI_freelistN(&palette->colors);
palette->active_color = 0;
}
Palette *BKE_palette_add(Main *bmain, const char *name)
{
Palette *palette;
palette = BKE_libblock_alloc(bmain, ID_PAL, name, 0);
/* enable fake user by default */
id_fake_user_set(&palette->id);
return palette;
}
/**
* Only copy internal data of Palette ID from source to already allocated/initialized destination.
* You probably nerver want to use that directly, use id_copy or BKE_id_copy_ex for typical needs.
*
* WARNING! This function will not handle ID user count!
*
* \param flag Copying options (see BKE_library.h's LIB_ID_COPY_... flags for more).
*/
void BKE_palette_copy_data(Main *UNUSED(bmain), Palette *palette_dst, const Palette *palette_src, const int UNUSED(flag))
{
BLI_duplicatelist(&palette_dst->colors, &palette_src->colors);
}
Palette *BKE_palette_copy(Main *bmain, const Palette *palette)
{
Palette *palette_copy;
BKE_id_copy_ex(bmain, &palette->id, (ID **)&palette_copy, 0, false);
return palette_copy;
}
void BKE_palette_make_local(Main *bmain, Palette *palette, const bool lib_local)
{
BKE_id_make_local_generic(bmain, &palette->id, true, lib_local);
}
/** Free (or release) any data used by this palette (does not free the palette itself). */
void BKE_palette_free(Palette *palette)
{
BLI_freelistN(&palette->colors);
}
PaletteColor *BKE_palette_color_add(Palette *palette)
{
PaletteColor *color = MEM_callocN(sizeof(*color), "Pallete Color");
BLI_addtail(&palette->colors, color);
return color;
}
bool BKE_palette_is_empty(const struct Palette *palette)
{
return BLI_listbase_is_empty(&palette->colors);
}
/* are we in vertex paint or weight pain face select mode? */
bool BKE_paint_select_face_test(Object *ob)
{
return ( (ob != NULL) &&
(ob->type == OB_MESH) &&
(ob->data != NULL) &&
(((Mesh *)ob->data)->editflag & ME_EDIT_PAINT_FACE_SEL) &&
(ob->mode & (OB_MODE_VERTEX_PAINT | OB_MODE_WEIGHT_PAINT | OB_MODE_TEXTURE_PAINT))
);
}
/* are we in weight paint vertex select mode? */
bool BKE_paint_select_vert_test(Object *ob)
{
return ( (ob != NULL) &&
(ob->type == OB_MESH) &&
(ob->data != NULL) &&
(((Mesh *)ob->data)->editflag & ME_EDIT_PAINT_VERT_SEL) &&
(ob->mode & OB_MODE_WEIGHT_PAINT || ob->mode & OB_MODE_VERTEX_PAINT)
);
}
/**
* used to check if selection is possible
* (when we don't care if its face or vert)
*/
bool BKE_paint_select_elem_test(Object *ob)
{
return (BKE_paint_select_vert_test(ob) ||
BKE_paint_select_face_test(ob));
}
void BKE_paint_cavity_curve_preset(Paint *p, int preset)
{
CurveMap *cm = NULL;
if (!p->cavity_curve)
p->cavity_curve = curvemapping_add(1, 0, 0, 1, 1);
cm = p->cavity_curve->cm;
cm->flag &= ~CUMA_EXTEND_EXTRAPOLATE;
p->cavity_curve->preset = preset;
curvemap_reset(cm, &p->cavity_curve->clipr, p->cavity_curve->preset, CURVEMAP_SLOPE_POSITIVE);
curvemapping_changed(p->cavity_curve, false);
}
eObjectMode BKE_paint_object_mode_from_paint_mode(ePaintMode mode)
{
switch (mode) {
case ePaintSculpt:
return OB_MODE_SCULPT;
case ePaintVertex:
return OB_MODE_VERTEX_PAINT;
case ePaintWeight:
return OB_MODE_WEIGHT_PAINT;
case ePaintTextureProjective:
return OB_MODE_TEXTURE_PAINT;
case ePaintTexture2D:
return OB_MODE_TEXTURE_PAINT;
case ePaintSculptUV:
return OB_MODE_EDIT;
case ePaintInvalid:
default:
return 0;
}
}
void BKE_paint_init(Main *bmain, Scene *sce, ePaintMode mode, const char col[3])
{
UnifiedPaintSettings *ups = &sce->toolsettings->unified_paint_settings;
Brush *brush;
Paint *paint = BKE_paint_get_active_from_paintmode(sce, mode);
/* If there's no brush, create one */
brush = BKE_paint_brush(paint);
if (brush == NULL) {
eObjectMode ob_mode = BKE_paint_object_mode_from_paint_mode(mode);
brush = BKE_brush_first_search(bmain, ob_mode);
if (!brush) {
brush = BKE_brush_add(bmain, "Brush", ob_mode);
id_us_min(&brush->id); /* fake user only */
}
BKE_paint_brush_set(paint, brush);
}
memcpy(paint->paint_cursor_col, col, 3);
paint->paint_cursor_col[3] = 128;
ups->last_stroke_valid = false;
zero_v3(ups->average_stroke_accum);
ups->average_stroke_counter = 0;
if (!paint->cavity_curve)
BKE_paint_cavity_curve_preset(paint, CURVE_PRESET_LINE);
}
void BKE_paint_free(Paint *paint)
{
curvemapping_free(paint->cavity_curve);
}
/* called when copying scene settings, so even if 'src' and 'tar' are the same
* still do a id_us_plus(), rather then if we were copying between 2 existing
* scenes where a matching value should decrease the existing user count as
* with paint_brush_set() */
void BKE_paint_copy(Paint *src, Paint *tar, const int flag)
{
tar->brush = src->brush;
tar->cavity_curve = curvemapping_copy(src->cavity_curve);
if ((flag & LIB_ID_CREATE_NO_USER_REFCOUNT) == 0) {
id_us_plus((ID *)tar->brush);
id_us_plus((ID *)tar->palette);
}
}
void BKE_paint_stroke_get_average(Scene *scene, Object *ob, float stroke[3])
{
UnifiedPaintSettings *ups = &scene->toolsettings->unified_paint_settings;
if (ups->last_stroke_valid && ups->average_stroke_counter > 0) {
float fac = 1.0f / ups->average_stroke_counter;
mul_v3_v3fl(stroke, ups->average_stroke_accum, fac);
}
else {
copy_v3_v3(stroke, ob->obmat[3]);
}
}
/* returns non-zero if any of the face's vertices
* are hidden, zero otherwise */
bool paint_is_face_hidden(const MLoopTri *lt, const MVert *mvert, const MLoop *mloop)
{
return ((mvert[mloop[lt->tri[0]].v].flag & ME_HIDE) ||
(mvert[mloop[lt->tri[1]].v].flag & ME_HIDE) ||
(mvert[mloop[lt->tri[2]].v].flag & ME_HIDE));
}
/* returns non-zero if any of the corners of the grid
* face whose inner corner is at (x, y) are hidden,
* zero otherwise */
bool paint_is_grid_face_hidden(const unsigned int *grid_hidden,
int gridsize, int x, int y)
{
/* skip face if any of its corners are hidden */
return (BLI_BITMAP_TEST(grid_hidden, y * gridsize + x) ||
BLI_BITMAP_TEST(grid_hidden, y * gridsize + x + 1) ||
BLI_BITMAP_TEST(grid_hidden, (y + 1) * gridsize + x + 1) ||
BLI_BITMAP_TEST(grid_hidden, (y + 1) * gridsize + x));
}
/* Return true if all vertices in the face are visible, false otherwise */
bool paint_is_bmesh_face_hidden(BMFace *f)
{
BMLoop *l_iter;
BMLoop *l_first;
l_iter = l_first = BM_FACE_FIRST_LOOP(f);
do {
if (BM_elem_flag_test(l_iter->v, BM_ELEM_HIDDEN)) {
return true;
}
} while ((l_iter = l_iter->next) != l_first);
return false;
}
float paint_grid_paint_mask(const GridPaintMask *gpm, unsigned level,
unsigned x, unsigned y)
{
int factor = BKE_ccg_factor(level, gpm->level);
int gridsize = BKE_ccg_gridsize(gpm->level);
return gpm->data[(y * factor) * gridsize + (x * factor)];
}
/* threshold to move before updating the brush rotation */
#define RAKE_THRESHHOLD 20
void paint_update_brush_rake_rotation(UnifiedPaintSettings *ups, Brush *brush, float rotation)
{
if (brush->mtex.brush_angle_mode & MTEX_ANGLE_RAKE)
ups->brush_rotation = rotation;
else
ups->brush_rotation = 0.0f;
if (brush->mask_mtex.brush_angle_mode & MTEX_ANGLE_RAKE)
ups->brush_rotation_sec = rotation;
else
ups->brush_rotation_sec = 0.0f;
}
bool paint_calculate_rake_rotation(UnifiedPaintSettings *ups, Brush *brush, const float mouse_pos[2])
{
bool ok = false;
if ((brush->mtex.brush_angle_mode & MTEX_ANGLE_RAKE) || (brush->mask_mtex.brush_angle_mode & MTEX_ANGLE_RAKE)) {
const float r = RAKE_THRESHHOLD;
float rotation;
float dpos[2];
sub_v2_v2v2(dpos, ups->last_rake, mouse_pos);
if (len_squared_v2(dpos) >= r * r) {
rotation = atan2f(dpos[0], dpos[1]);
copy_v2_v2(ups->last_rake, mouse_pos);
ups->last_rake_angle = rotation;
paint_update_brush_rake_rotation(ups, brush, rotation);
ok = true;
}
/* make sure we reset here to the last rotation to avoid accumulating
* values in case a random rotation is also added */
else {
paint_update_brush_rake_rotation(ups, brush, ups->last_rake_angle);
ok = false;
}
}
else {
ups->brush_rotation = ups->brush_rotation_sec = 0.0f;
ok = true;
}
return ok;
}
void BKE_sculptsession_free_deformMats(SculptSession *ss)
{
MEM_SAFE_FREE(ss->orig_cos);
MEM_SAFE_FREE(ss->deform_cos);
MEM_SAFE_FREE(ss->deform_imats);
}
void BKE_sculptsession_free_vwpaint_data(struct SculptSession *ss)
{
struct SculptVertexPaintGeomMap *gmap = NULL;
if (ss->mode_type == OB_MODE_VERTEX_PAINT) {
gmap = &ss->mode.vpaint.gmap;
MEM_SAFE_FREE(ss->mode.vpaint.previous_color);
}
else if (ss->mode_type == OB_MODE_WEIGHT_PAINT) {
gmap = &ss->mode.wpaint.gmap;
MEM_SAFE_FREE(ss->mode.wpaint.alpha_weight);
if (ss->mode.wpaint.dvert_prev) {
BKE_defvert_array_free_elems(ss->mode.wpaint.dvert_prev, ss->totvert);
MEM_freeN(ss->mode.wpaint.dvert_prev);
ss->mode.wpaint.dvert_prev = NULL;
}
}
else {
return;
}
MEM_SAFE_FREE(gmap->vert_to_loop);
MEM_SAFE_FREE(gmap->vert_map_mem);
MEM_SAFE_FREE(gmap->vert_to_poly);
MEM_SAFE_FREE(gmap->poly_map_mem);
}
/* Write out the sculpt dynamic-topology BMesh to the Mesh */
static void sculptsession_bm_to_me_update_data_only(Object *ob, bool reorder)
{
SculptSession *ss = ob->sculpt;
if (ss->bm) {
if (ob->data) {
BMIter iter;
BMFace *efa;
BM_ITER_MESH (efa, &iter, ss->bm, BM_FACES_OF_MESH) {
BM_elem_flag_set(efa, BM_ELEM_SMOOTH, ss->bm_smooth_shading);
}
if (reorder)
BM_log_mesh_elems_reorder(ss->bm, ss->bm_log);
BM_mesh_bm_to_me(ss->bm, ob->data, (&(struct BMeshToMeshParams){0}));
}
}
}
void BKE_sculptsession_bm_to_me(Object *ob, bool reorder)
{
if (ob && ob->sculpt) {
sculptsession_bm_to_me_update_data_only(ob, reorder);
/* ensure the objects DerivedMesh mesh doesn't hold onto arrays now realloc'd in the mesh [#34473] */
DAG_id_tag_update(&ob->id, OB_RECALC_DATA);
}
}
void BKE_sculptsession_bm_to_me_for_render(Object *object)
{
if (object && object->sculpt) {
if (object->sculpt->bm) {
/* Ensure no points to old arrays are stored in DM
*
* Apparently, we could not use DAG_id_tag_update
* here because this will lead to the while object
* surface to disappear, so we'll release DM in place.
*/
BKE_object_free_derived_caches(object);
if (object->sculpt->pbvh) {
BKE_pbvh_free(object->sculpt->pbvh);
object->sculpt->pbvh = NULL;
}
sculptsession_bm_to_me_update_data_only(object, false);
/* In contrast with sculptsession_bm_to_me no need in
* DAG tag update here - derived mesh was freed and
* old pointers are nowhere stored.
*/
}
}
}
void BKE_sculptsession_free(Object *ob)
{
if (ob && ob->sculpt) {
SculptSession *ss = ob->sculpt;
DerivedMesh *dm = ob->derivedFinal;
if (ss->bm) {
BKE_sculptsession_bm_to_me(ob, true);
BM_mesh_free(ss->bm);
}
if (ss->pbvh)
BKE_pbvh_free(ss->pbvh);
if (ss->bm_log)
BM_log_free(ss->bm_log);
if (dm && dm->getPBVH)
dm->getPBVH(NULL, dm); /* signal to clear */
if (ss->texcache)
MEM_freeN(ss->texcache);
if (ss->tex_pool)
BKE_image_pool_free(ss->tex_pool);
if (ss->layer_co)
MEM_freeN(ss->layer_co);
if (ss->orig_cos)
MEM_freeN(ss->orig_cos);
if (ss->deform_cos)
MEM_freeN(ss->deform_cos);
if (ss->deform_imats)
MEM_freeN(ss->deform_imats);
BKE_sculptsession_free_vwpaint_data(ob->sculpt);
MEM_freeN(ss);
ob->sculpt = NULL;
}
}
/* Sculpt mode handles multires differently from regular meshes, but only if
* it's the last modifier on the stack and it is not on the first level */
MultiresModifierData *BKE_sculpt_multires_active(Scene *scene, Object *ob)
{
Mesh *me = (Mesh *)ob->data;
ModifierData *md;
VirtualModifierData virtualModifierData;
if (ob->sculpt && ob->sculpt->bm) {
/* can't combine multires and dynamic topology */
return NULL;
}
if (!CustomData_get_layer(&me->ldata, CD_MDISPS)) {
/* multires can't work without displacement layer */
return NULL;
}
for (md = modifiers_getVirtualModifierList(ob, &virtualModifierData); md; md = md->next) {
if (md->type == eModifierType_Multires) {
MultiresModifierData *mmd = (MultiresModifierData *)md;
if (!modifier_isEnabled(scene, md, eModifierMode_Realtime))
continue;
if (mmd->sculptlvl > 0) return mmd;
else return NULL;
}
}
return NULL;
}
/* Checks if there are any supported deformation modifiers active */
static bool sculpt_modifiers_active(Scene *scene, Sculpt *sd, Object *ob)
{
ModifierData *md;
Mesh *me = (Mesh *)ob->data;
MultiresModifierData *mmd = BKE_sculpt_multires_active(scene, ob);
VirtualModifierData virtualModifierData;
if (mmd || ob->sculpt->bm)
return false;
/* non-locked shape keys could be handled in the same way as deformed mesh */
if ((ob->shapeflag & OB_SHAPE_LOCK) == 0 && me->key && ob->shapenr)
return true;
md = modifiers_getVirtualModifierList(ob, &virtualModifierData);
/* exception for shape keys because we can edit those */
for (; md; md = md->next) {
const ModifierTypeInfo *mti = modifierType_getInfo(md->type);
if (!modifier_isEnabled(scene, md, eModifierMode_Realtime)) continue;
if (ELEM(md->type, eModifierType_ShapeKey, eModifierType_Multires)) continue;
if (mti->type == eModifierTypeType_OnlyDeform) return true;
else if ((sd->flags & SCULPT_ONLY_DEFORM) == 0) return true;
}
return false;
}
/**
* \param need_mask So the DerivedMesh thats returned has mask data
*/
void BKE_sculpt_update_mesh_elements(Scene *scene, Sculpt *sd, Object *ob,
bool need_pmap, bool need_mask)
{
DerivedMesh *dm;
SculptSession *ss = ob->sculpt;
Mesh *me = ob->data;
MultiresModifierData *mmd = BKE_sculpt_multires_active(scene, ob);
ss->modifiers_active = sculpt_modifiers_active(scene, sd, ob);
ss->show_diffuse_color = (sd->flags & SCULPT_SHOW_DIFFUSE) != 0;
ss->show_mask = (sd->flags & SCULPT_HIDE_MASK) == 0;
ss->building_vp_handle = false;
if (need_mask) {
if (mmd == NULL) {
if (!CustomData_has_layer(&me->vdata, CD_PAINT_MASK)) {
BKE_sculpt_mask_layers_ensure(ob, NULL);
}
}
else {
if (!CustomData_has_layer(&me->ldata, CD_GRID_PAINT_MASK)) {
#if 1
BKE_sculpt_mask_layers_ensure(ob, mmd);
#else /* if we wanted to support adding mask data while multi-res painting, we would need to do this */
if ((ED_sculpt_mask_layers_ensure(ob, mmd) & ED_SCULPT_MASK_LAYER_CALC_LOOP)) {
/* remake the derived mesh */
ob->recalc |= OB_RECALC_DATA;
BKE_object_handle_update(scene, ob);
}
#endif
}
}
}
/* tessfaces aren't used and will become invalid */
BKE_mesh_tessface_clear(me);
ss->kb = (mmd == NULL) ? BKE_keyblock_from_object(ob) : NULL;
dm = mesh_get_derived_final(scene, ob, CD_MASK_BAREMESH);
/* VWPaint require mesh info for loop lookup, so require sculpt mode here */
if (mmd && ob->mode & OB_MODE_SCULPT) {
ss->multires = mmd;
ss->totvert = dm->getNumVerts(dm);
ss->totpoly = dm->getNumPolys(dm);
ss->mvert = NULL;
ss->mpoly = NULL;
ss->mloop = NULL;
}
else {
ss->totvert = me->totvert;
ss->totpoly = me->totpoly;
ss->mvert = me->mvert;
ss->mpoly = me->mpoly;
ss->mloop = me->mloop;
ss->multires = NULL;
ss->vmask = CustomData_get_layer(&me->vdata, CD_PAINT_MASK);
}
ss->pbvh = dm->getPBVH(ob, dm);
ss->pmap = (need_pmap && dm->getPolyMap) ? dm->getPolyMap(ob, dm) : NULL;
pbvh_show_diffuse_color_set(ss->pbvh, ss->show_diffuse_color);
pbvh_show_mask_set(ss->pbvh, ss->show_mask);
if (ss->modifiers_active) {
if (!ss->orig_cos) {
int a;
BKE_sculptsession_free_deformMats(ss);
ss->orig_cos = (ss->kb) ? BKE_keyblock_convert_to_vertcos(ob, ss->kb) : BKE_mesh_vertexCos_get(me, NULL);
BKE_crazyspace_build_sculpt(scene, ob, &ss->deform_imats, &ss->deform_cos);
BKE_pbvh_apply_vertCos(ss->pbvh, ss->deform_cos);
for (a = 0; a < me->totvert; ++a) {
invert_m3(ss->deform_imats[a]);
}
}
}
else {
BKE_sculptsession_free_deformMats(ss);
}
if (ss->kb != NULL && ss->deform_cos == NULL) {
ss->deform_cos = BKE_keyblock_convert_to_vertcos(ob, ss->kb);
}
/* if pbvh is deformed, key block is already applied to it */
if (ss->kb) {
bool pbvh_deformed = BKE_pbvh_isDeformed(ss->pbvh);
if (!pbvh_deformed || ss->deform_cos == NULL) {
float (*vertCos)[3] = BKE_keyblock_convert_to_vertcos(ob, ss->kb);
if (vertCos) {
if (!pbvh_deformed) {
/* apply shape keys coordinates to PBVH */
BKE_pbvh_apply_vertCos(ss->pbvh, vertCos);
}
if (ss->deform_cos == NULL) {
ss->deform_cos = vertCos;
}
if (vertCos != ss->deform_cos) {
MEM_freeN(vertCos);
}
}
}
}
}
int BKE_sculpt_mask_layers_ensure(Object *ob, MultiresModifierData *mmd)
{
const float *paint_mask;
Mesh *me = ob->data;
int ret = 0;
paint_mask = CustomData_get_layer(&me->vdata, CD_PAINT_MASK);
/* if multires is active, create a grid paint mask layer if there
* isn't one already */
if (mmd && !CustomData_has_layer(&me->ldata, CD_GRID_PAINT_MASK)) {
GridPaintMask *gmask;
int level = max_ii(1, mmd->sculptlvl);
int gridsize = BKE_ccg_gridsize(level);
int gridarea = gridsize * gridsize;
int i, j;
gmask = CustomData_add_layer(&me->ldata, CD_GRID_PAINT_MASK,
CD_CALLOC, NULL, me->totloop);
for (i = 0; i < me->totloop; i++) {
GridPaintMask *gpm = &gmask[i];
gpm->level = level;
gpm->data = MEM_callocN(sizeof(float) * gridarea,
"GridPaintMask.data");
}
/* if vertices already have mask, copy into multires data */
if (paint_mask) {
for (i = 0; i < me->totpoly; i++) {
const MPoly *p = &me->mpoly[i];
float avg = 0;
/* mask center */
for (j = 0; j < p->totloop; j++) {
const MLoop *l = &me->mloop[p->loopstart + j];
avg += paint_mask[l->v];
}
avg /= (float)p->totloop;
/* fill in multires mask corner */
for (j = 0; j < p->totloop; j++) {
GridPaintMask *gpm = &gmask[p->loopstart + j];
const MLoop *l = &me->mloop[p->loopstart + j];
const MLoop *prev = ME_POLY_LOOP_PREV(me->mloop, p, j);
const MLoop *next = ME_POLY_LOOP_NEXT(me->mloop, p, j);
gpm->data[0] = avg;
gpm->data[1] = (paint_mask[l->v] +
paint_mask[next->v]) * 0.5f;
gpm->data[2] = (paint_mask[l->v] +
paint_mask[prev->v]) * 0.5f;
gpm->data[3] = paint_mask[l->v];
}
}
}
ret |= SCULPT_MASK_LAYER_CALC_LOOP;
}
/* create vertex paint mask layer if there isn't one already */
if (!paint_mask) {
CustomData_add_layer(&me->vdata, CD_PAINT_MASK,
CD_CALLOC, NULL, me->totvert);
ret |= SCULPT_MASK_LAYER_CALC_VERT;
}
return ret;
}
void BKE_sculpt_toolsettings_data_ensure(struct Scene *scene)
{
Sculpt *sd = scene->toolsettings->sculpt;
if (sd == NULL) {
sd = scene->toolsettings->sculpt = MEM_callocN(sizeof(Sculpt), __func__);
/* Turn on X plane mirror symmetry by default */
sd->paint.symmetry_flags |= PAINT_SYMM_X;
sd->paint.flags |= PAINT_SHOW_BRUSH;
/* Make sure at least dyntopo subdivision is enabled */
sd->flags |= SCULPT_DYNTOPO_SUBDIVIDE | SCULPT_DYNTOPO_COLLAPSE;
}
if (!sd->detail_size) {
sd->detail_size = 12;
}
if (!sd->detail_percent) {
sd->detail_percent = 25;
}
if (sd->constant_detail == 0.0f) {
sd->constant_detail = 3.0f;
}
/* Set sane default tiling offsets */
if (!sd->paint.tile_offset[0]) {
sd->paint.tile_offset[0] = 1.0f;
}
if (!sd->paint.tile_offset[1]) {
sd->paint.tile_offset[1] = 1.0f;
}
if (!sd->paint.tile_offset[2]) {
sd->paint.tile_offset[2] = 1.0f;
}
}
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