diff options
Diffstat (limited to 'source/blender/editors/uvedit')
| -rw-r--r-- | source/blender/editors/uvedit/uvedit_intern.h | 1 | ||||
| -rw-r--r-- | source/blender/editors/uvedit/uvedit_ops.c | 1 | ||||
| -rw-r--r-- | source/blender/editors/uvedit/uvedit_parametrizer.c | 20 | ||||
| -rw-r--r-- | source/blender/editors/uvedit/uvedit_rip.c | 25 | ||||
| -rw-r--r-- | source/blender/editors/uvedit/uvedit_smart_stitch.c | 21 | ||||
| -rw-r--r-- | source/blender/editors/uvedit/uvedit_unwrap_ops.c | 436 |
6 files changed, 447 insertions, 57 deletions
diff --git a/source/blender/editors/uvedit/uvedit_intern.h b/source/blender/editors/uvedit/uvedit_intern.h index 8a452941954..5a510aaf945 100644 --- a/source/blender/editors/uvedit/uvedit_intern.h +++ b/source/blender/editors/uvedit/uvedit_intern.h @@ -115,6 +115,7 @@ void UV_OT_sphere_project(struct wmOperatorType *ot); void UV_OT_unwrap(struct wmOperatorType *ot); void UV_OT_rip(struct wmOperatorType *ot); void UV_OT_stitch(struct wmOperatorType *ot); +void UV_OT_smart_project(struct wmOperatorType *ot); /* uvedit_path.c */ void UV_OT_shortest_path_pick(struct wmOperatorType *ot); diff --git a/source/blender/editors/uvedit/uvedit_ops.c b/source/blender/editors/uvedit/uvedit_ops.c index deec72d368f..d3d8c58829b 100644 --- a/source/blender/editors/uvedit/uvedit_ops.c +++ b/source/blender/editors/uvedit/uvedit_ops.c @@ -2078,6 +2078,7 @@ void ED_operatortypes_uvedit(void) WM_operatortype_append(UV_OT_reset); WM_operatortype_append(UV_OT_sphere_project); WM_operatortype_append(UV_OT_unwrap); + WM_operatortype_append(UV_OT_smart_project); WM_operatortype_append(UV_OT_reveal); WM_operatortype_append(UV_OT_hide); diff --git a/source/blender/editors/uvedit/uvedit_parametrizer.c b/source/blender/editors/uvedit/uvedit_parametrizer.c index a4ee9a294fe..dd422f2443a 100644 --- a/source/blender/editors/uvedit/uvedit_parametrizer.c +++ b/source/blender/editors/uvedit/uvedit_parametrizer.c @@ -497,7 +497,7 @@ static void p_chart_uv_translate(PChart *chart, const float trans[2]) } } -static void p_chart_uv_transform(PChart *chart, float mat[2][2]) +static void p_chart_uv_transform(PChart *chart, const float mat[2][2]) { PVert *v; @@ -1498,10 +1498,10 @@ static void p_polygon_kernel_center(float (*points)[2], int npoints, float *cent float(*oldpoints)[2], (*newpoints)[2], *p1, *p2; size = npoints * 3; - oldpoints = MEM_mallocN(sizeof(float) * 2 * size, "PPolygonOldPoints"); - newpoints = MEM_mallocN(sizeof(float) * 2 * size, "PPolygonNewPoints"); + oldpoints = MEM_mallocN(sizeof(float[2]) * size, "PPolygonOldPoints"); + newpoints = MEM_mallocN(sizeof(float[2]) * size, "PPolygonNewPoints"); - memcpy(oldpoints, points, sizeof(float) * 2 * npoints); + memcpy(oldpoints, points, sizeof(float[2]) * npoints); for (i = 0; i < npoints; i++) { p1 = points[i]; @@ -1510,7 +1510,7 @@ static void p_polygon_kernel_center(float (*points)[2], int npoints, float *cent if (nnewpoints == 0) { /* degenerate case, use center of original polygon */ - memcpy(oldpoints, points, sizeof(float) * 2 * npoints); + memcpy(oldpoints, points, sizeof(float[2]) * npoints); nnewpoints = npoints; break; } @@ -1528,10 +1528,10 @@ static void p_polygon_kernel_center(float (*points)[2], int npoints, float *cent if (nnewpoints * 2 > size) { size *= 2; MEM_freeN(oldpoints); - oldpoints = MEM_mallocN(sizeof(float) * 2 * size, "oldpoints"); - memcpy(oldpoints, newpoints, sizeof(float) * 2 * nnewpoints); + oldpoints = MEM_mallocN(sizeof(float[2]) * size, "oldpoints"); + memcpy(oldpoints, newpoints, sizeof(float[2]) * nnewpoints); MEM_freeN(newpoints); - newpoints = MEM_mallocN(sizeof(float) * 2 * size, "newpoints"); + newpoints = MEM_mallocN(sizeof(float[2]) * size, "newpoints"); } else { float(*sw_points)[2] = oldpoints; @@ -1687,7 +1687,7 @@ static void p_vert_harmonic_insert(PVert *v) npoints++; } - points = MEM_mallocN(sizeof(float) * 2 * npoints, "PHarmonicPoints"); + points = MEM_mallocN(sizeof(float[2]) * npoints, "PHarmonicPoints"); e = v->edge; i = 0; @@ -2427,7 +2427,7 @@ static void p_abf_setup_system(PAbfSystem *sys) sys->bAlpha = (float *)MEM_mallocN(sizeof(float) * sys->nangles, "ABFbalpha"); sys->bTriangle = (float *)MEM_mallocN(sizeof(float) * sys->nfaces, "ABFbtriangle"); - sys->bInterior = (float *)MEM_mallocN(sizeof(float) * 2 * sys->ninterior, "ABFbinterior"); + sys->bInterior = (float *)MEM_mallocN(sizeof(float[2]) * sys->ninterior, "ABFbinterior"); sys->lambdaTriangle = (float *)MEM_callocN(sizeof(float) * sys->nfaces, "ABFlambdatri"); sys->lambdaPlanar = (float *)MEM_callocN(sizeof(float) * sys->ninterior, "ABFlamdaplane"); diff --git a/source/blender/editors/uvedit/uvedit_rip.c b/source/blender/editors/uvedit/uvedit_rip.c index 07bec2da1ae..421e58b1cb5 100644 --- a/source/blender/editors/uvedit/uvedit_rip.c +++ b/source/blender/editors/uvedit/uvedit_rip.c @@ -538,23 +538,22 @@ static bool uv_rip_pairs_loop_change_sides_test(BMLoop *l_switch, if (count_a + count_b == 4) { return count_a > count_b; } - else { - const float angle_a_before = uv_rip_pairs_calc_uv_angle( - l_switch, side_a, aspect_y, cd_loop_uv_offset); - const float angle_b_before = uv_rip_pairs_calc_uv_angle( - l_target, side_b, aspect_y, cd_loop_uv_offset); - UL(l_switch)->side = side_b; + const float angle_a_before = uv_rip_pairs_calc_uv_angle( + l_switch, side_a, aspect_y, cd_loop_uv_offset); + const float angle_b_before = uv_rip_pairs_calc_uv_angle( + l_target, side_b, aspect_y, cd_loop_uv_offset); - const float angle_a_after = uv_rip_pairs_calc_uv_angle( - l_switch, side_a, aspect_y, cd_loop_uv_offset); - const float angle_b_after = uv_rip_pairs_calc_uv_angle( - l_target, side_b, aspect_y, cd_loop_uv_offset); + UL(l_switch)->side = side_b; - UL(l_switch)->side = side_a; + const float angle_a_after = uv_rip_pairs_calc_uv_angle( + l_switch, side_a, aspect_y, cd_loop_uv_offset); + const float angle_b_after = uv_rip_pairs_calc_uv_angle( + l_target, side_b, aspect_y, cd_loop_uv_offset); - return fabsf(angle_a_before - angle_b_before) > fabsf(angle_a_after - angle_b_after); - } + UL(l_switch)->side = side_a; + + return fabsf(angle_a_before - angle_b_before) > fabsf(angle_a_after - angle_b_after); } /** diff --git a/source/blender/editors/uvedit/uvedit_smart_stitch.c b/source/blender/editors/uvedit/uvedit_smart_stitch.c index f649ee528d4..6332a6ab48f 100644 --- a/source/blender/editors/uvedit/uvedit_smart_stitch.c +++ b/source/blender/editors/uvedit/uvedit_smart_stitch.c @@ -323,7 +323,10 @@ static int getNumOfIslandUvs(UvElementMap *elementMap, int island) return elementMap->islandIndices[island + 1] - elementMap->islandIndices[island]; } -static void stitch_uv_rotate(float mat[2][2], float medianPoint[2], float uv[2], float aspect) +static void stitch_uv_rotate(const float mat[2][2], + const float medianPoint[2], + float uv[2], + float aspect) { float uv_rotation_result[2]; @@ -1222,14 +1225,14 @@ static int stitch_process_data(StitchStateContainer *ssc, uint buffer_index = 0; /* initialize the preview buffers */ - preview->preview_polys = MEM_mallocN(preview->preview_uvs * sizeof(float) * 2, + preview->preview_polys = MEM_mallocN(sizeof(float[2]) * preview->preview_uvs, "tri_uv_stitch_prev"); - preview->uvs_per_polygon = MEM_mallocN(preview->num_polys * sizeof(*preview->uvs_per_polygon), + preview->uvs_per_polygon = MEM_mallocN(sizeof(*preview->uvs_per_polygon) * preview->num_polys, "tri_uv_stitch_prev"); - preview->static_tris = MEM_mallocN(state->tris_per_island[ssc->static_island] * sizeof(float) * - 6, - "static_island_preview_tris"); + preview->static_tris = MEM_mallocN( + (sizeof(float[6]) * state->tris_per_island[ssc->static_island]), + "static_island_preview_tris"); preview->num_static_tris = state->tris_per_island[ssc->static_island]; /* will cause cancel and freeing of all data structures so OK */ @@ -1268,9 +1271,9 @@ static int stitch_process_data(StitchStateContainer *ssc, &bm->ldata, lnext->next->head.data, CD_MLOOPUV); luv = CustomData_bmesh_get(&bm->ldata, lnext->head.data, CD_MLOOPUV); - memcpy(preview->static_tris + buffer_index, fuv->uv, 2 * sizeof(float)); - memcpy(preview->static_tris + buffer_index + 2, luv->uv, 2 * sizeof(float)); - memcpy(preview->static_tris + buffer_index + 4, luvnext->uv, 2 * sizeof(float)); + memcpy(preview->static_tris + buffer_index, fuv->uv, sizeof(float[2])); + memcpy(preview->static_tris + buffer_index + 2, luv->uv, sizeof(float[2])); + memcpy(preview->static_tris + buffer_index + 4, luvnext->uv, sizeof(float[2])); buffer_index += 6; } else { diff --git a/source/blender/editors/uvedit/uvedit_unwrap_ops.c b/source/blender/editors/uvedit/uvedit_unwrap_ops.c index 6fcfb0e0bfc..49f11cd6a74 100644 --- a/source/blender/editors/uvedit/uvedit_unwrap_ops.c +++ b/source/blender/editors/uvedit/uvedit_unwrap_ops.c @@ -35,7 +35,10 @@ #include "DNA_scene_types.h" #include "BLI_alloca.h" +#include "BLI_array.h" +#include "BLI_linklist.h" #include "BLI_math.h" +#include "BLI_memarena.h" #include "BLI_string.h" #include "BLI_utildefines.h" #include "BLI_uvproject.h" @@ -147,7 +150,13 @@ typedef struct UnwrapOptions { /** Connectivity based on UV coordinates instead of seams. */ bool topology_from_uvs; /** Only affect selected faces. */ - bool only_selected; + bool only_selected_faces; + /** + * Only affect selected UV's. + * \note Disable this for operations that don't run in the image-window. + * Unwrapping from the 3D view for example, where only 'only_selected_faces' should be used. + */ + bool only_selected_uvs; /** Fill holes to better preserve shape. */ bool fill_holes; /** Correct for mapped image texture aspect ratio. */ @@ -299,7 +308,7 @@ static ParamHandle *construct_param_handle(const Scene *scene, BM_ITER_MESH_INDEX (efa, &iter, bm, BM_FACES_OF_MESH, i) { if ((BM_elem_flag_test(efa, BM_ELEM_HIDDEN)) || - (options->only_selected && BM_elem_flag_test(efa, BM_ELEM_SELECT) == 0)) { + (options->only_selected_faces && BM_elem_flag_test(efa, BM_ELEM_SELECT) == 0)) { continue; } @@ -307,10 +316,12 @@ static ParamHandle *construct_param_handle(const Scene *scene, bool is_loopsel = false; BM_ITER_ELEM (l, &liter, efa, BM_LOOPS_OF_FACE) { - if (uvedit_uv_select_test(scene, l, cd_loop_uv_offset)) { - is_loopsel = true; - break; + if (options->only_selected_uvs && + (uvedit_uv_select_test(scene, l, cd_loop_uv_offset) == false)) { + continue; } + is_loopsel = true; + break; } if (is_loopsel == false) { continue; @@ -382,7 +393,7 @@ static ParamHandle *construct_param_handle_multi(const Scene *scene, BM_ITER_MESH_INDEX (efa, &iter, bm, BM_FACES_OF_MESH, i) { if ((BM_elem_flag_test(efa, BM_ELEM_HIDDEN)) || - (options->only_selected && BM_elem_flag_test(efa, BM_ELEM_SELECT) == 0)) { + (options->only_selected_faces && BM_elem_flag_test(efa, BM_ELEM_SELECT) == 0)) { continue; } @@ -390,10 +401,12 @@ static ParamHandle *construct_param_handle_multi(const Scene *scene, bool is_loopsel = false; BM_ITER_ELEM (l, &liter, efa, BM_LOOPS_OF_FACE) { - if (uvedit_uv_select_test(scene, l, cd_loop_uv_offset)) { - is_loopsel = true; - break; + if (options->only_selected_uvs && + (uvedit_uv_select_test(scene, l, cd_loop_uv_offset) == false)) { + continue; } + is_loopsel = true; + break; } if (is_loopsel == false) { continue; @@ -571,7 +584,7 @@ static ParamHandle *construct_param_handle_subsurfed(const Scene *scene, } else { if (BM_elem_flag_test(origFace, BM_ELEM_HIDDEN) || - (options->only_selected && !BM_elem_flag_test(origFace, BM_ELEM_SELECT))) { + (options->only_selected_faces && !BM_elem_flag_test(origFace, BM_ELEM_SELECT))) { continue; } } @@ -671,7 +684,8 @@ static bool minimize_stretch_init(bContext *C, wmOperator *op) const UnwrapOptions options = { .topology_from_uvs = true, .fill_holes = RNA_boolean_get(op->ptr, "fill_holes"), - .only_selected = true, + .only_selected_faces = true, + .only_selected_uvs = true, .correct_aspect = true, }; @@ -933,7 +947,8 @@ static void uvedit_pack_islands(const Scene *scene, Object *ob, BMesh *bm) { const UnwrapOptions options = { .topology_from_uvs = true, - .only_selected = false, + .only_selected_faces = false, + .only_selected_uvs = true, .fill_holes = false, .correct_aspect = false, }; @@ -975,7 +990,8 @@ static int pack_islands_exec(bContext *C, wmOperator *op) const UnwrapOptions options = { .topology_from_uvs = true, - .only_selected = true, + .only_selected_faces = true, + .only_selected_uvs = true, .fill_holes = false, .correct_aspect = true, }; @@ -1040,7 +1056,8 @@ static int average_islands_scale_exec(bContext *C, wmOperator *UNUSED(op)) const UnwrapOptions options = { .topology_from_uvs = true, - .only_selected = true, + .only_selected_faces = true, + .only_selected_uvs = true, .fill_holes = false, .correct_aspect = true, }; @@ -1114,7 +1131,8 @@ void ED_uvedit_live_unwrap_begin(Scene *scene, Object *obedit) const UnwrapOptions options = { .topology_from_uvs = false, - .only_selected = false, + .only_selected_faces = false, + .only_selected_uvs = true, .fill_holes = (scene->toolsettings->uvcalc_flag & UVCALC_FILLHOLES) != 0, .correct_aspect = (scene->toolsettings->uvcalc_flag & UVCALC_NO_ASPECT_CORRECT) == 0, }; @@ -1330,7 +1348,7 @@ static void uv_map_rotation_matrix(float result[4][4], float sideangledeg, float radius) { - float offset[4] = {0}; + const float offset[4] = {0}; uv_map_rotation_matrix_ex(result, rv3d, ob, upangledeg, sideangledeg, radius, offset); } @@ -1471,18 +1489,21 @@ static void correct_uv_aspect(Object *ob, BMEditMesh *em) /** \name UV Map Clip & Correct * \{ */ -static void uv_map_clip_correct_properties(wmOperatorType *ot) +static void uv_map_clip_correct_properties_ex(wmOperatorType *ot, bool clip_to_bounds) { RNA_def_boolean(ot->srna, "correct_aspect", 1, "Correct Aspect", "Map UVs taking image aspect ratio into account"); - RNA_def_boolean(ot->srna, - "clip_to_bounds", - 0, - "Clip to Bounds", - "Clip UV coordinates to bounds after unwrapping"); + /* Optional, since not all unwrapping types need to be clipped. */ + if (clip_to_bounds) { + RNA_def_boolean(ot->srna, + "clip_to_bounds", + 0, + "Clip to Bounds", + "Clip UV coordinates to bounds after unwrapping"); + } RNA_def_boolean(ot->srna, "scale_to_bounds", 0, @@ -1490,6 +1511,11 @@ static void uv_map_clip_correct_properties(wmOperatorType *ot) "Scale UV coordinates to bounds after unwrapping"); } +static void uv_map_clip_correct_properties(wmOperatorType *ot) +{ + uv_map_clip_correct_properties_ex(ot, true); +} + static void uv_map_clip_correct_multi(Object **objects, uint objects_len, wmOperator *op) { BMFace *efa; @@ -1498,7 +1524,8 @@ static void uv_map_clip_correct_multi(Object **objects, uint objects_len, wmOper MLoopUV *luv; float dx, dy, min[2], max[2]; const bool correct_aspect = RNA_boolean_get(op->ptr, "correct_aspect"); - const bool clip_to_bounds = RNA_boolean_get(op->ptr, "clip_to_bounds"); + const bool clip_to_bounds = (RNA_struct_find_property(op->ptr, "clip_to_bounds") && + RNA_boolean_get(op->ptr, "clip_to_bounds")); const bool scale_to_bounds = RNA_boolean_get(op->ptr, "scale_to_bounds"); INIT_MINMAX2(min, max); @@ -1635,7 +1662,8 @@ void ED_uvedit_live_unwrap(const Scene *scene, Object **objects, int objects_len if (scene->toolsettings->edge_mode_live_unwrap) { const UnwrapOptions options = { .topology_from_uvs = false, - .only_selected = false, + .only_selected_faces = false, + .only_selected_uvs = true, .fill_holes = (scene->toolsettings->uvcalc_flag & UVCALC_FILLHOLES) != 0, .correct_aspect = (scene->toolsettings->uvcalc_flag & UVCALC_NO_ASPECT_CORRECT) == 0, }; @@ -1670,7 +1698,8 @@ static int unwrap_exec(bContext *C, wmOperator *op) const UnwrapOptions options = { .topology_from_uvs = false, - .only_selected = true, + .only_selected_faces = true, + .only_selected_uvs = true, .fill_holes = RNA_boolean_get(op->ptr, "fill_holes"), .correct_aspect = RNA_boolean_get(op->ptr, "correct_aspect"), }; @@ -1829,6 +1858,363 @@ void UV_OT_unwrap(wmOperatorType *ot) /** \} */ /* -------------------------------------------------------------------- */ +/** \name Smart UV Project Operator + * \{ */ + +/* Ignore all areas below this, as the UV's get zeroed. */ +static const float smart_uv_project_area_ignore = 1e-12f; + +typedef struct ThickFace { + float area; + BMFace *efa; +} ThickFace; + +static int smart_uv_project_thickface_area_cmp_fn(const void *tf_a_p, const void *tf_b_p) +{ + + const ThickFace *tf_a = (ThickFace *)tf_a_p; + const ThickFace *tf_b = (ThickFace *)tf_b_p; + + /* Ignore the area of small faces. + * Also, order checks so `!isfinite(...)` values are counted as zero area. */ + if (!((tf_a->area > smart_uv_project_area_ignore) || + (tf_b->area > smart_uv_project_area_ignore))) { + return 0; + } + + if (tf_a->area < tf_b->area) { + return 1; + } + if (tf_a->area > tf_b->area) { + return -1; + } + return 0; +} + +static uint smart_uv_project_calculate_project_normals(const ThickFace *thick_faces, + const uint thick_faces_len, + BMesh *bm, + const float project_angle_limit_half_cos, + const float project_angle_limit_cos, + const float area_weight, + float (**r_project_normal_array)[3]) +{ + if (UNLIKELY(thick_faces_len == 0)) { + *r_project_normal_array = NULL; + return 0; + } + + const float *project_normal = thick_faces[0].efa->no; + + const ThickFace **project_thick_faces = NULL; + BLI_array_declare(project_thick_faces); + + float(*project_normal_array)[3] = NULL; + BLI_array_declare(project_normal_array); + + BM_mesh_elem_hflag_disable_all(bm, BM_FACE, BM_ELEM_TAG, false); + + while (true) { + for (int f_index = thick_faces_len - 1; f_index >= 0; f_index--) { + if (BM_elem_flag_test(thick_faces[f_index].efa, BM_ELEM_TAG)) { + continue; + } + + if (dot_v3v3(thick_faces[f_index].efa->no, project_normal) > project_angle_limit_half_cos) { + BLI_array_append(project_thick_faces, &thick_faces[f_index]); + BM_elem_flag_set(thick_faces[f_index].efa, BM_ELEM_TAG, true); + } + } + + float average_normal[3] = {0.0f, 0.0f, 0.0f}; + + if (area_weight <= 0.0f) { + for (int f_proj_index = 0; f_proj_index < BLI_array_len(project_thick_faces); + f_proj_index++) { + const ThickFace *tf = project_thick_faces[f_proj_index]; + add_v3_v3(average_normal, tf->efa->no); + } + } + else if (area_weight >= 1.0f) { + for (int f_proj_index = 0; f_proj_index < BLI_array_len(project_thick_faces); + f_proj_index++) { + const ThickFace *tf = project_thick_faces[f_proj_index]; + madd_v3_v3fl(average_normal, tf->efa->no, tf->area); + } + } + else { + for (int f_proj_index = 0; f_proj_index < BLI_array_len(project_thick_faces); + f_proj_index++) { + const ThickFace *tf = project_thick_faces[f_proj_index]; + const float area_blend = (tf->area * area_weight) + (1.0f - area_weight); + madd_v3_v3fl(average_normal, tf->efa->no, area_blend); + } + } + + /* Avoid NAN. */ + if (normalize_v3(average_normal) != 0.0f) { + float(*normal)[3] = BLI_array_append_ret(project_normal_array); + copy_v3_v3(*normal, average_normal); + } + + /* Find the most unique angle that points away from other normals. */ + float anble_best = 1.0f; + uint angle_best_index = 0; + + for (int f_index = thick_faces_len - 1; f_index >= 0; f_index--) { + if (BM_elem_flag_test(thick_faces[f_index].efa, BM_ELEM_TAG)) { + continue; + } + + float angle_test = -1.0f; + for (int p_index = 0; p_index < BLI_array_len(project_normal_array); p_index++) { + angle_test = max_ff(angle_test, + dot_v3v3(project_normal_array[p_index], thick_faces[f_index].efa->no)); + } + + if (angle_test < anble_best) { + anble_best = angle_test; + angle_best_index = f_index; + } + } + + if (anble_best < project_angle_limit_cos) { + project_normal = thick_faces[angle_best_index].efa->no; + BLI_array_clear(project_thick_faces); + BLI_array_append(project_thick_faces, &thick_faces[angle_best_index]); + BM_elem_flag_enable(thick_faces[angle_best_index].efa, BM_ELEM_TAG); + } + else { + if (BLI_array_len(project_normal_array) >= 1) { + break; + } + } + } + + BLI_array_free(project_thick_faces); + BM_mesh_elem_hflag_disable_all(bm, BM_FACE, BM_ELEM_TAG, false); + + *r_project_normal_array = project_normal_array; + return BLI_array_len(project_normal_array); +} + +static int smart_project_exec(bContext *C, wmOperator *op) +{ + Scene *scene = CTX_data_scene(C); + ViewLayer *view_layer = CTX_data_view_layer(C); + + /* May be NULL. */ + View3D *v3d = CTX_wm_view3d(C); + + const float project_angle_limit = RNA_float_get(op->ptr, "angle_limit"); + const float island_margin = RNA_float_get(op->ptr, "island_margin"); + const float area_weight = RNA_float_get(op->ptr, "area_weight"); + + const float project_angle_limit_cos = cosf(project_angle_limit); + const float project_angle_limit_half_cos = cosf(project_angle_limit / 2); + + /* Memory arena for list links (cleared for each object). */ + MemArena *arena = BLI_memarena_new(BLI_MEMARENA_STD_BUFSIZE, __func__); + + uint objects_len = 0; + Object **objects = BKE_view_layer_array_from_objects_in_edit_mode_unique_data_with_uvs( + view_layer, v3d, &objects_len); + + Object **objects_changed = MEM_mallocN(sizeof(*objects_changed) * objects_len, __func__); + uint object_changed_len = 0; + + BMFace *efa; + BMIter iter; + uint ob_index; + + for (ob_index = 0; ob_index < objects_len; ob_index++) { + Object *obedit = objects[ob_index]; + BMEditMesh *em = BKE_editmesh_from_object(obedit); + bool changed = false; + + const uint cd_loop_uv_offset = CustomData_get_offset(&em->bm->ldata, CD_MLOOPUV); + ThickFace *thick_faces = MEM_mallocN(sizeof(*thick_faces) * em->bm->totface, __func__); + + uint thick_faces_len = 0; + BM_ITER_MESH (efa, &iter, em->bm, BM_FACES_OF_MESH) { + if (!BM_elem_flag_test(efa, BM_ELEM_SELECT)) { + continue; + } + thick_faces[thick_faces_len].area = BM_face_calc_area(efa); + thick_faces[thick_faces_len].efa = efa; + thick_faces_len++; + } + + qsort(thick_faces, thick_faces_len, sizeof(ThickFace), smart_uv_project_thickface_area_cmp_fn); + + /* Remove all zero area faces. */ + while ((thick_faces_len > 0) && + !(thick_faces[thick_faces_len - 1].area > smart_uv_project_area_ignore)) { + + /* Zero UV's so they don't overlap with other faces being unwrapped. */ + BMIter liter; + BMLoop *l; + BM_ITER_ELEM (l, &liter, thick_faces[thick_faces_len - 1].efa, BM_LOOPS_OF_FACE) { + MLoopUV *luv = BM_ELEM_CD_GET_VOID_P(l, cd_loop_uv_offset); + zero_v2(luv->uv); + changed = true; + } + + thick_faces_len -= 1; + } + + float(*project_normal_array)[3] = NULL; + int project_normals_len = smart_uv_project_calculate_project_normals( + thick_faces, + thick_faces_len, + em->bm, + project_angle_limit_half_cos, + project_angle_limit_cos, + area_weight, + &project_normal_array); + + if (project_normals_len == 0) { + MEM_freeN(thick_faces); + BLI_assert(project_normal_array == NULL); + continue; + } + + /* After finding projection vectors, we find the uv positions. */ + LinkNode **thickface_project_groups = MEM_callocN( + sizeof(*thickface_project_groups) * project_normals_len, __func__); + + BLI_memarena_clear(arena); + + for (int f_index = thick_faces_len - 1; f_index >= 0; f_index--) { + const float *f_normal = thick_faces[f_index].efa->no; + + float angle_best = dot_v3v3(f_normal, project_normal_array[0]); + uint angle_best_index = 0; + + for (int p_index = 1; p_index < project_normals_len; p_index++) { + const float angle_test = dot_v3v3(f_normal, project_normal_array[p_index]); + if (angle_test > angle_best) { + angle_best = angle_test; + angle_best_index = p_index; + } + } + + BLI_linklist_prepend_arena( + &thickface_project_groups[angle_best_index], &thick_faces[f_index], arena); + } + + for (int p_index = 0; p_index < project_normals_len; p_index++) { + if (thickface_project_groups[p_index] == NULL) { + continue; + } + + float axis_mat[3][3]; + axis_dominant_v3_to_m3_negate(axis_mat, project_normal_array[p_index]); + + for (LinkNode *list = thickface_project_groups[p_index]; list; list = list->next) { + ThickFace *tf = list->link; + BMIter liter; + BMLoop *l; + BM_ITER_ELEM (l, &liter, tf->efa, BM_LOOPS_OF_FACE) { + MLoopUV *luv = BM_ELEM_CD_GET_VOID_P(l, cd_loop_uv_offset); + mul_v2_m3v3(luv->uv, axis_mat, l->v->co); + } + changed = true; + } + } + + MEM_freeN(thick_faces); + MEM_freeN(project_normal_array); + + /* No need to free the lists in 'thickface_project_groups' values as the 'arena' is used. */ + MEM_freeN(thickface_project_groups); + + if (changed) { + objects_changed[object_changed_len] = objects[ob_index]; + object_changed_len += 1; + } + } + + BLI_memarena_free(arena); + + MEM_freeN(objects); + + /* Pack islands & Stretch to UV bounds */ + if (object_changed_len > 0) { + + scene->toolsettings->uvcalc_margin = island_margin; + const UnwrapOptions options = { + .topology_from_uvs = true, + .only_selected_faces = true, + .only_selected_uvs = false, + .fill_holes = true, + .correct_aspect = false, + }; + + /* Depsgraph refresh functions are called here. */ + uvedit_pack_islands_multi(scene, objects_changed, object_changed_len, &options, true, false); + uv_map_clip_correct_multi(objects_changed, object_changed_len, op); + } + + MEM_freeN(objects_changed); + + return OPERATOR_FINISHED; +} + +void UV_OT_smart_project(wmOperatorType *ot) +{ + PropertyRNA *prop; + + /* identifiers */ + ot->name = "Smart UV Project"; + ot->idname = "UV_OT_smart_project"; + ot->description = "Projection unwraps the selected faces of mesh objects"; + + ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO; + + /* api callbacks */ + ot->exec = smart_project_exec; + ot->poll = ED_operator_uvmap; + ot->invoke = WM_operator_props_popup_confirm; + + /* properties */ + prop = RNA_def_float_rotation(ot->srna, + "angle_limit", + 0, + NULL, + DEG2RADF(0.0f), + DEG2RADF(90.0f), + "Angle Limit", + "Lower for more projection groups, higher for less distortion", + DEG2RADF(0.0f), + DEG2RADF(89.0f)); + RNA_def_property_float_default(prop, DEG2RADF(66.0f)); + + RNA_def_float(ot->srna, + "island_margin", + 0.0f, + 0.0f, + 1.0f, + "Island Margin", + "Margin to reduce bleed from adjacent islands", + 0.0f, + 1.0f); + RNA_def_float(ot->srna, + "area_weight", + 0.0f, + 0.0f, + 1.0f, + "Area Weight", + "Weight projections vector by faces with larger areas", + 0.0f, + 1.0f); + + uv_map_clip_correct_properties_ex(ot, false); +} + +/** \} */ + +/* -------------------------------------------------------------------- */ /** \name Project UV From View Operator * \{ */ |