diff options
Diffstat (limited to 'source/blender/editors/sculpt_paint/paint_ops.c')
| -rw-r--r-- | source/blender/editors/sculpt_paint/paint_ops.c | 240 |
1 files changed, 240 insertions, 0 deletions
diff --git a/source/blender/editors/sculpt_paint/paint_ops.c b/source/blender/editors/sculpt_paint/paint_ops.c index da7667c775e..bf923415f01 100644 --- a/source/blender/editors/sculpt_paint/paint_ops.c +++ b/source/blender/editors/sculpt_paint/paint_ops.c @@ -315,6 +315,241 @@ static void PAINT_OT_vertex_color_smooth(wmOperatorType *ot) ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO; } + +/** \name Vertex Color Transformations + * \{ */ + +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)) { + ED_region_tag_redraw(CTX_wm_region(C)); + return OPERATOR_FINISHED; + } + else { + return OPERATOR_CANCELLED; + } +} + +static 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)) { + ED_region_tag_redraw(CTX_wm_region(C)); + return OPERATOR_FINISHED; + } + else { + return OPERATOR_CANCELLED; + } +} + +static 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)) { + ED_region_tag_redraw(CTX_wm_region(C)); + return OPERATOR_FINISHED; + } + else { + return OPERATOR_CANCELLED; + } +} + +static 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)) { + ED_region_tag_redraw(CTX_wm_region(C)); + return OPERATOR_FINISHED; + } + else { + return OPERATOR_CANCELLED; + } +} + +static 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); +} + +/** \} */ + + static int brush_reset_exec(bContext *C, wmOperator *UNUSED(op)) { Paint *paint = BKE_paint_get_active_from_context(C); @@ -1112,6 +1347,11 @@ void ED_operatortypes_paint(void) WM_operatortype_append(PAINT_OT_vertex_color_set); WM_operatortype_append(PAINT_OT_vertex_color_smooth); + WM_operatortype_append(PAINT_OT_vertex_color_brightness_contrast); + WM_operatortype_append(PAINT_OT_vertex_color_hsv); + WM_operatortype_append(PAINT_OT_vertex_color_invert); + WM_operatortype_append(PAINT_OT_vertex_color_levels); + /* face-select */ WM_operatortype_append(PAINT_OT_face_select_linked); WM_operatortype_append(PAINT_OT_face_select_linked_pick); |