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blender-archive/source/blender/blenkernel/BKE_brush.h
Antonis Ryakiotakis 9f911f62dc Fix T45013 negative curve falloff not working.
Was doing clamping as fix for T42984. Seems we can ommit clamping for
sculpting if we make sure overlap is not zero with negative values.

Control for clamping is moved to the "Use Clipping" function of curves
(which is on by default), so both bugs remain squashed and advanced
users can now properly utilize curves in sculpting, though not all
brushes work well with negative curves.
2015-06-10 13:32:28 +02:00

119 lines
4.5 KiB
C++

/*
* ***** 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 *****
*/
#ifndef __BKE_BRUSH_H__
#define __BKE_BRUSH_H__
/** \file BKE_brush.h
* \ingroup bke
*
* General operations for brushes.
*/
struct Brush;
struct ImBuf;
struct ImagePool;
struct Main;
struct Scene;
// enum CurveMappingPreset;
/* globals for brush execution */
void BKE_brush_system_init(void);
void BKE_brush_system_exit(void);
/* datablock functions */
struct Brush *BKE_brush_add(struct Main *bmain, const char *name);
struct Brush *BKE_brush_copy(struct Brush *brush);
void BKE_brush_make_local(struct Brush *brush);
void BKE_brush_free(struct Brush *brush);
void BKE_brush_sculpt_reset(struct Brush *brush);
/* image icon function */
struct ImBuf *get_brush_icon(struct Brush *brush);
/* brush library operations used by different paint panels */
int BKE_brush_texture_set_nr(struct Brush *brush, int nr);
int BKE_brush_texture_delete(struct Brush *brush);
int BKE_brush_clone_image_set_nr(struct Brush *brush, int nr);
int BKE_brush_clone_image_delete(struct Brush *brush);
/* jitter */
void BKE_brush_jitter_pos(const struct Scene *scene, struct Brush *brush,
const float pos[2], float jitterpos[2]);
void BKE_brush_randomize_texture_coords(struct UnifiedPaintSettings *ups, bool mask);
/* brush curve */
void BKE_brush_curve_preset(struct Brush *b, int preset);
float BKE_brush_curve_strength_clamped(struct Brush *br, float p, const float len);
float BKE_brush_curve_strength(struct Brush *br, float p, const float len);
/* sampling */
float BKE_brush_sample_tex_3D(const Scene *scene, struct Brush *br, const float point[3],
float rgba[4], const int thread, struct ImagePool *pool);
float BKE_brush_sample_masktex(const Scene *scene, struct Brush *br, const float point[2],
const int thread, struct ImagePool *pool);
/* texture */
unsigned int *BKE_brush_gen_texture_cache(struct Brush *br, int half_side, bool use_secondary);
/* radial control */
struct ImBuf *BKE_brush_gen_radial_control_imbuf(struct Brush *br, bool secondary);
/* unified strength size and color */
const float *BKE_brush_color_get(const struct Scene *scene, const struct Brush *brush);
const float *BKE_brush_secondary_color_get(const struct Scene *scene, const struct Brush *brush);
void BKE_brush_color_set(struct Scene *scene, struct Brush *brush, const float color[3]);
int BKE_brush_size_get(const struct Scene *scene, const struct Brush *brush);
void BKE_brush_size_set(struct Scene *scene, struct Brush *brush, int value);
float BKE_brush_unprojected_radius_get(const struct Scene *scene, const struct Brush *brush);
void BKE_brush_unprojected_radius_set(struct Scene *scene, struct Brush *brush, float value);
float BKE_brush_alpha_get(const struct Scene *scene, const struct Brush *brush);
void BKE_brush_alpha_set(Scene *scene, struct Brush *brush, float alpha);
float BKE_brush_weight_get(const Scene *scene, const struct Brush *brush);
void BKE_brush_weight_set(const Scene *scene, struct Brush *brush, float value);
int BKE_brush_use_locked_size(const struct Scene *scene, const struct Brush *brush);
int BKE_brush_use_alpha_pressure(const struct Scene *scene, const struct Brush *brush);
int BKE_brush_use_size_pressure(const struct Scene *scene, const struct Brush *brush);
/* scale unprojected radius to reflect a change in the brush's 2D size */
void BKE_brush_scale_unprojected_radius(
float *unprojected_radius,
int new_brush_size,
int old_brush_size);
/* scale brush size to reflect a change in the brush's unprojected radius */
void BKE_brush_scale_size(
int *r_brush_size,
float new_unprojected_radius,
float old_unprojected_radius);
/* debugging only */
void BKE_brush_debug_print_state(struct Brush *br);
#endif