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Diffstat (limited to 'source/blender/editors/sculpt_paint/paint_vertex_color_ops.c')
| -rw-r--r-- | source/blender/editors/sculpt_paint/paint_vertex_color_ops.c | 575 |
1 files changed, 575 insertions, 0 deletions
diff --git a/source/blender/editors/sculpt_paint/paint_vertex_color_ops.c b/source/blender/editors/sculpt_paint/paint_vertex_color_ops.c new file mode 100644 index 00000000000..d7668a48139 --- /dev/null +++ b/source/blender/editors/sculpt_paint/paint_vertex_color_ops.c @@ -0,0 +1,575 @@ +/* + * ***** 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. + * + * ***** END GPL LICENSE BLOCK ***** + */ + +/** \file blender/editors/sculpt_paint/paint_vertex_color_ops.c + * \ingroup edsculpt + */ + +#include "MEM_guardedalloc.h" + +#include "DNA_mesh_types.h" +#include "DNA_meshdata_types.h" +#include "DNA_object_types.h" +#include "DNA_scene_types.h" + +#include "BLI_math_base.h" +#include "BLI_math_color.h" + +#include "BKE_context.h" +#include "BKE_mesh.h" +#include "BKE_deform.h" + +#include "DEG_depsgraph.h" + +#include "RNA_access.h" +#include "RNA_define.h" + +#include "WM_api.h" +#include "WM_types.h" + +#include "ED_mesh.h" + +#include "paint_intern.h" /* own include */ + + +static int vertex_weight_paint_mode_poll(bContext *C) +{ + Object *ob = CTX_data_active_object(C); + Mesh *me = BKE_mesh_from_object(ob); + return (ob && (ob->mode == OB_MODE_VERTEX_PAINT || ob->mode == OB_MODE_WEIGHT_PAINT)) && + (me && me->totpoly && me->dvert); +} + +/* -------------------------------------------------------------------- */ +/** \name Set Vertex Colors Operator + * \{ */ + +static bool vertex_color_set(Object *ob, uint paintcol) +{ + Mesh *me; + const MPoly *mp; + int i, j; + + if (((me = BKE_mesh_from_object(ob)) == NULL) || + (ED_mesh_color_ensure(me, NULL) == false)) + { + return false; + } + + const bool use_face_sel = (me->editflag & ME_EDIT_PAINT_FACE_SEL) != 0; + const bool use_vert_sel = (me->editflag & ME_EDIT_PAINT_VERT_SEL) != 0; + + mp = me->mpoly; + for (i = 0; i < me->totpoly; i++, mp++) { + MLoopCol *lcol = me->mloopcol + mp->loopstart; + + if (use_face_sel && !(mp->flag & ME_FACE_SEL)) + continue; + + j = 0; + do { + uint vidx = me->mloop[mp->loopstart + j].v; + if (!(use_vert_sel && !(me->mvert[vidx].flag & SELECT))) { + *(int *)lcol = paintcol; + } + lcol++; + j++; + } while (j < mp->totloop); + + } + + /* remove stale me->mcol, will be added later */ + BKE_mesh_tessface_clear(me); + + DEG_id_tag_update(&me->id, 0); + + return true; +} + +static int vertex_color_set_exec(bContext *C, wmOperator *UNUSED(op)) +{ + Scene *scene = CTX_data_scene(C); + Object *obact = CTX_data_active_object(C); + unsigned int paintcol = vpaint_get_current_col(scene, scene->toolsettings->vpaint); + + if (vertex_color_set(obact, paintcol)) { + WM_event_add_notifier(C, NC_OBJECT | ND_DRAW, obact); + return OPERATOR_FINISHED; + } + else { + return OPERATOR_CANCELLED; + } +} + +void PAINT_OT_vertex_color_set(wmOperatorType *ot) +{ + /* identifiers */ + ot->name = "Set Vertex Colors"; + ot->idname = "PAINT_OT_vertex_color_set"; + ot->description = "Fill the active vertex color layer with the current paint color"; + + /* api callbacks */ + ot->exec = vertex_color_set_exec; + ot->poll = vertex_paint_mode_poll; + + /* flags */ + ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO; +} + +/** \} */ + +/* -------------------------------------------------------------------- */ +/** \name Vertex Color from Weight Operator + * \{ */ + +static bool vertex_paint_from_weight(Object *ob) +{ + Mesh *me; + const MPoly *mp; + int vgroup_active; + + if (((me = BKE_mesh_from_object(ob)) == NULL || + (ED_mesh_color_ensure(me, NULL)) == false)) + { + return false; + } + + /* TODO: respect selection. */ + mp = me->mpoly; + vgroup_active = ob->actdef - 1; + for (int i = 0; i < me->totpoly; i++, mp++) { + MLoopCol *lcol = &me->mloopcol[mp->loopstart]; + uint j = 0; + do { + uint vidx = me->mloop[mp->loopstart + j].v; + const float weight = defvert_find_weight(&me->dvert[vidx], vgroup_active); + const uchar grayscale = weight * 255; + lcol->r = grayscale; + lcol->b = grayscale; + lcol->g = grayscale; + lcol++; + j++; + } while (j < mp->totloop); + } + + DEG_id_tag_update(&ob->id, OB_RECALC_DATA); + + return true; +} + +static int vertex_paint_from_weight_exec(bContext *C, wmOperator *UNUSED(op)) +{ + Object *obact = CTX_data_active_object(C); + if (vertex_paint_from_weight(obact)) { + WM_event_add_notifier(C, NC_OBJECT | ND_DRAW, obact); + return OPERATOR_FINISHED; + } + else { + return OPERATOR_CANCELLED; + } +} + +void PAINT_OT_vertex_color_from_weight(wmOperatorType *ot) +{ + /* identifiers */ + ot->name = "Vertex Color from Weight"; + ot->idname = "PAINT_OT_vertex_color_from_weight"; + ot->description = "Convert active weight into gray scale vertex colors"; + + /* api callback */ + ot->exec = vertex_paint_from_weight_exec; + ot->poll = vertex_weight_paint_mode_poll; + + /* flags */ + ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO; + + /* TODO: invert, alpha */ +} + +/** \} */ + +/* -------------------------------------------------------------------- */ +/** \name Smooth Vertex Colors Operator + * \{ */ + +static void vertex_color_smooth_looptag(Mesh *me, bool *mlooptag) +{ + const bool use_face_sel = (me->editflag & ME_EDIT_PAINT_FACE_SEL) != 0; + const MPoly *mp; + int (*scol)[4]; + int i, j; + bool has_shared = false; + + /* if no mloopcol: do not do */ + /* if mtexpoly: only the involved faces, otherwise all */ + + if (me->mloopcol == NULL || me->totvert == 0 || me->totpoly == 0) return; + + scol = MEM_callocN(sizeof(int) * me->totvert * 5, "scol"); + + for (i = 0, mp = me->mpoly; i < me->totpoly; i++, mp++) { + if ((use_face_sel == false) || (mp->flag & ME_FACE_SEL)) { + const MLoop *ml = me->mloop + mp->loopstart; + MLoopCol *lcol = me->mloopcol + mp->loopstart; + for (j = 0; j < mp->totloop; j++, ml++, lcol++) { + scol[ml->v][0] += lcol->r; + scol[ml->v][1] += lcol->g; + scol[ml->v][2] += lcol->b; + scol[ml->v][3] += 1; + has_shared = 1; + } + } + } + + if (has_shared) { + for (i = 0; i < me->totvert; i++) { + if (scol[i][3] != 0) { + scol[i][0] = divide_round_i(scol[i][0], scol[i][3]); + scol[i][1] = divide_round_i(scol[i][1], scol[i][3]); + scol[i][2] = divide_round_i(scol[i][2], scol[i][3]); + } + } + + for (i = 0, mp = me->mpoly; i < me->totpoly; i++, mp++) { + if ((use_face_sel == false) || (mp->flag & ME_FACE_SEL)) { + const MLoop *ml = me->mloop + mp->loopstart; + MLoopCol *lcol = me->mloopcol + mp->loopstart; + for (j = 0; j < mp->totloop; j++, ml++, lcol++) { + if (mlooptag[mp->loopstart + j]) { + lcol->r = scol[ml->v][0]; + lcol->g = scol[ml->v][1]; + lcol->b = scol[ml->v][2]; + } + } + } + } + } + + MEM_freeN(scol); +} + +static bool vertex_color_smooth(Object *ob) +{ + Mesh *me; + const MPoly *mp; + + int i, j; + + bool *mlooptag; + + if (((me = BKE_mesh_from_object(ob)) == NULL) || + (ED_mesh_color_ensure(me, NULL) == false)) + { + return false; + } + + const bool use_face_sel = (me->editflag & ME_EDIT_PAINT_FACE_SEL) != 0; + + mlooptag = MEM_callocN(sizeof(bool) * me->totloop, "VPaintData mlooptag"); + + /* simply tag loops of selected faces */ + mp = me->mpoly; + for (i = 0; i < me->totpoly; i++, mp++) { + const MLoop *ml = me->mloop + mp->loopstart; + int ml_index = mp->loopstart; + + if (use_face_sel && !(mp->flag & ME_FACE_SEL)) + continue; + + for (j = 0; j < mp->totloop; j++, ml_index++, ml++) { + mlooptag[ml_index] = true; + } + } + + /* remove stale me->mcol, will be added later */ + BKE_mesh_tessface_clear(me); + + vertex_color_smooth_looptag(me, mlooptag); + + MEM_freeN(mlooptag); + + DEG_id_tag_update(&me->id, 0); + + return true; +} + + +static int vertex_color_smooth_exec(bContext *C, wmOperator *UNUSED(op)) +{ + Object *obact = CTX_data_active_object(C); + if (vertex_color_smooth(obact)) { + WM_event_add_notifier(C, NC_OBJECT | ND_DRAW, obact); + return OPERATOR_FINISHED; + } + else { + return OPERATOR_CANCELLED; + } +} + +void PAINT_OT_vertex_color_smooth(wmOperatorType *ot) +{ + /* identifiers */ + ot->name = "Smooth Vertex Colors"; + ot->idname = "PAINT_OT_vertex_color_smooth"; + ot->description = "Smooth colors across vertices"; + + /* api callbacks */ + ot->exec = vertex_color_smooth_exec; + ot->poll = vertex_paint_mode_poll; + + /* flags */ + ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO; +} + +/** \} */ + +/* -------------------------------------------------------------------- */ +/** \name Vertex Color Transformation Operators + * \{ */ + +struct VPaintTx_BrightContrastData { + /* pre-calculated */ + float gain; + float offset; +}; + +static void vpaint_tx_brightness_contrast(const float col[3], const void *user_data, float r_col[3]) +{ + const struct VPaintTx_BrightContrastData *data = user_data; + + for (int i = 0; i < 3; i++) { + r_col[i] = data->gain * col[i] + data->offset; + } +} + +static int vertex_color_brightness_contrast_exec(bContext *C, wmOperator *op) +{ + Object *obact = CTX_data_active_object(C); + + float gain, offset; + { + float brightness = RNA_float_get(op->ptr, "brightness"); + float contrast = RNA_float_get(op->ptr, "contrast"); + brightness /= 100.0f; + float delta = contrast / 200.0f; + gain = 1.0f - delta * 2.0f; + /* + * The algorithm is by Werner D. Streidt + * (http://visca.com/ffactory/archives/5-99/msg00021.html) + * Extracted of OpenCV demhist.c + */ + if (contrast > 0) { + gain = 1.0f / ((gain != 0.0f) ? gain : FLT_EPSILON); + offset = gain * (brightness - delta); + } + else { + delta *= -1; + offset = gain * (brightness + delta); + } + } + + const struct VPaintTx_BrightContrastData user_data = { + .gain = gain, + .offset = offset, + }; + + if (ED_vpaint_color_transform(obact, vpaint_tx_brightness_contrast, &user_data)) { + WM_event_add_notifier(C, NC_OBJECT | ND_DRAW, obact); + return OPERATOR_FINISHED; + } + else { + return OPERATOR_CANCELLED; + } +} + +void PAINT_OT_vertex_color_brightness_contrast(wmOperatorType *ot) +{ + PropertyRNA *prop; + + /* identifiers */ + ot->name = "Vertex Paint Bright/Contrast"; + ot->idname = "PAINT_OT_vertex_color_brightness_contrast"; + ot->description = "Adjust vertex color brightness/contrast"; + + /* api callbacks */ + ot->exec = vertex_color_brightness_contrast_exec; + ot->poll = vertex_paint_mode_poll; + + /* flags */ + ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO; + + /* params */ + const float min = -100, max = +100; + prop = RNA_def_float(ot->srna, "brightness", 0.0f, min, max, "Brightness", "", min, max); + prop = RNA_def_float(ot->srna, "contrast", 0.0f, min, max, "Contrast", "", min, max); + RNA_def_property_ui_range(prop, min, max, 1, 1); +} + +struct VPaintTx_HueSatData { + float hue; + float sat; + float val; +}; + +static void vpaint_tx_hsv(const float col[3], const void *user_data, float r_col[3]) +{ + const struct VPaintTx_HueSatData *data = user_data; + float hsv[3]; + rgb_to_hsv_v(col, hsv); + + hsv[0] += (data->hue - 0.5f); + if (hsv[0] > 1.0f) { + hsv[0] -= 1.0f; + } + else if (hsv[0] < 0.0f) { + hsv[0] += 1.0f; + } + hsv[1] *= data->sat; + hsv[2] *= data->val; + + hsv_to_rgb_v(hsv, r_col); +} + +static int vertex_color_hsv_exec(bContext *C, wmOperator *op) +{ + Object *obact = CTX_data_active_object(C); + + const struct VPaintTx_HueSatData user_data = { + .hue = RNA_float_get(op->ptr, "h"), + .sat = RNA_float_get(op->ptr, "s"), + .val = RNA_float_get(op->ptr, "v"), + }; + + if (ED_vpaint_color_transform(obact, vpaint_tx_hsv, &user_data)) { + WM_event_add_notifier(C, NC_OBJECT | ND_DRAW, obact); + return OPERATOR_FINISHED; + } + else { + return OPERATOR_CANCELLED; + } +} + +void PAINT_OT_vertex_color_hsv(wmOperatorType *ot) +{ + /* identifiers */ + ot->name = "Vertex Paint Hue Saturation Value"; + ot->idname = "PAINT_OT_vertex_color_hsv"; + ot->description = "Adjust vertex color HSV values"; + + /* api callbacks */ + ot->exec = vertex_color_hsv_exec; + ot->poll = vertex_paint_mode_poll; + + /* flags */ + ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO; + + /* params */ + RNA_def_float(ot->srna, "h", 0.5f, 0.0f, 1.0f, "Hue", "", 0.0f, 1.0f); + RNA_def_float(ot->srna, "s", 1.0f, 0.0f, 2.0f, "Saturation", "", 0.0f, 2.0f); + RNA_def_float(ot->srna, "v", 1.0f, 0.0f, 2.0f, "Value", "", 0.0f, 2.0f); +} + +static void vpaint_tx_invert(const float col[3], const void *UNUSED(user_data), float r_col[3]) +{ + for (int i = 0; i < 3; i++) { + r_col[i] = 1.0f - col[i]; + } +} + +static int vertex_color_invert_exec(bContext *C, wmOperator *UNUSED(op)) +{ + Object *obact = CTX_data_active_object(C); + + if (ED_vpaint_color_transform(obact, vpaint_tx_invert, NULL)) { + WM_event_add_notifier(C, NC_OBJECT | ND_DRAW, obact); + return OPERATOR_FINISHED; + } + else { + return OPERATOR_CANCELLED; + } +} + +void PAINT_OT_vertex_color_invert(wmOperatorType *ot) +{ + /* identifiers */ + ot->name = "Vertex Paint Invert"; + ot->idname = "PAINT_OT_vertex_color_invert"; + ot->description = "Invert RGB values"; + + /* api callbacks */ + ot->exec = vertex_color_invert_exec; + ot->poll = vertex_paint_mode_poll; + + /* flags */ + ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO; +} + + +struct VPaintTx_LevelsData { + float gain; + float offset; +}; + +static void vpaint_tx_levels(const float col[3], const void *user_data, float r_col[3]) +{ + const struct VPaintTx_LevelsData *data = user_data; + for (int i = 0; i < 3; i++) { + r_col[i] = data->gain * (col[i] + data->offset); + } +} + +static int vertex_color_levels_exec(bContext *C, wmOperator *op) +{ + Object *obact = CTX_data_active_object(C); + + const struct VPaintTx_LevelsData user_data = { + .gain = RNA_float_get(op->ptr, "gain"), + .offset = RNA_float_get(op->ptr, "offset"), + }; + + if (ED_vpaint_color_transform(obact, vpaint_tx_levels, &user_data)) { + WM_event_add_notifier(C, NC_OBJECT | ND_DRAW, obact); + return OPERATOR_FINISHED; + } + else { + return OPERATOR_CANCELLED; + } +} + +void PAINT_OT_vertex_color_levels(wmOperatorType *ot) +{ + /* identifiers */ + ot->name = "Vertex Paint Levels"; + ot->idname = "PAINT_OT_vertex_color_levels"; + ot->description = "Adjust levels of vertex colors"; + + /* api callbacks */ + ot->exec = vertex_color_levels_exec; + ot->poll = vertex_paint_mode_poll; + + /* flags */ + ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO; + + /* params */ + RNA_def_float(ot->srna, "offset", 0.0f, -1.0f, 1.0f, "Offset", "Value to add to colors", -1.0f, 1.0f); + RNA_def_float(ot->srna, "gain", 1.0f, 0.0f, FLT_MAX, "Gain", "Value to multiply colors by", 0.0f, 10.0f); +} + +/** \} */ |