diff options
Diffstat (limited to 'source/blender/editors/transform/transform_snap_object.c')
| -rw-r--r-- | source/blender/editors/transform/transform_snap_object.c | 423 |
1 files changed, 335 insertions, 88 deletions
diff --git a/source/blender/editors/transform/transform_snap_object.c b/source/blender/editors/transform/transform_snap_object.c index 57352f38789..17c77df58f2 100644 --- a/source/blender/editors/transform/transform_snap_object.c +++ b/source/blender/editors/transform/transform_snap_object.c @@ -34,6 +34,7 @@ #include "BLI_memarena.h" #include "BLI_ghash.h" #include "BLI_linklist.h" +#include "BLI_listbase.h" #include "BLI_utildefines.h" #include "DNA_armature_types.h" @@ -109,6 +110,111 @@ struct SnapObjectContext { }; +static int dm_looptri_to_poly_index(DerivedMesh *dm, const MLoopTri *lt); + + +/* -------------------------------------------------------------------- */ + +/** \name Support for storing all depths, not just the first (raycast 'all') + * + * This uses a list of #SnapObjectHitDepth structs. + * + * \{ */ + +/* Store all ray-hits */ +struct RayCastAll_Data { + void *bvhdata; + + /* internal vars for adding depths */ + BVHTree_RayCastCallback raycast_callback; + + const float(*obmat)[4]; + const float(*timat)[3]; + + float len_diff; + float local_scale; + + Object *ob; + unsigned int ob_uuid; + + /* DerivedMesh only */ + DerivedMesh *dm; + const struct MLoopTri *dm_looptri; + + /* output data */ + ListBase *hit_list; + bool retval; +}; + +static struct SnapObjectHitDepth *hit_depth_create( + const float depth, const float co[3], const float no[3], int index, + Object *ob, const float obmat[4][4], unsigned int ob_uuid) +{ + struct SnapObjectHitDepth *hit = MEM_mallocN(sizeof(*hit), __func__); + + hit->depth = depth; + copy_v3_v3(hit->co, co); + copy_v3_v3(hit->no, no); + hit->index = index; + + hit->ob = ob; + copy_m4_m4(hit->obmat, (float(*)[4])obmat); + hit->ob_uuid = ob_uuid; + + return hit; +} + +static int hit_depth_cmp(const void *arg1, const void *arg2) +{ + const struct SnapObjectHitDepth *h1 = arg1; + const struct SnapObjectHitDepth *h2 = arg2; + int val = 0; + + if (h1->depth < h2->depth) { + val = -1; + } + else if (h1->depth > h2->depth) { + val = 1; + } + + return val; +} + +static void raycast_all_cb(void *userdata, int index, const BVHTreeRay *ray, BVHTreeRayHit *hit) +{ + struct RayCastAll_Data *data = userdata; + data->raycast_callback(data->bvhdata, index, ray, hit); + if (hit->index != -1) { + /* get all values in worldspace */ + float location[3], normal[3]; + float depth; + + /* worldspace location */ + mul_v3_m4v3(location, (float(*)[4])data->obmat, hit->co); + depth = (hit->dist + data->len_diff) / data->local_scale; + + /* worldspace normal */ + copy_v3_v3(normal, hit->no); + mul_m3_v3((float(*)[3])data->timat, normal); + normalize_v3(normal); + + /* currently unused, and causes issues when looptri's havn't been calculated. + * since theres some overhead in ensuring this data is valid, it may need to be optional. */ +#if 0 + if (data->dm) { + hit->index = dm_looptri_to_poly_index(data->dm, &data->dm_looptri[hit->index]); + } +#endif + + struct SnapObjectHitDepth *hit_item = hit_depth_create( + depth, location, normal, hit->index, + data->ob, data->obmat, data->ob_uuid); + BLI_addtail(data->hit_list, hit_item); + } +} + +/** \} */ + /* -------------------------------------------------------------------- */ @@ -572,8 +678,10 @@ static bool snapDerivedMesh( SnapObjectContext *sctx, Object *ob, DerivedMesh *dm, float obmat[4][4], const float mval[2], float *dist_px, const short snap_to, bool do_bb, - const float ray_start[3], const float ray_normal[3], const float ray_origin[3], float *ray_depth, - float r_loc[3], float r_no[3], int *r_index) + const float ray_start[3], const float ray_normal[3], const float ray_origin[3], + float *ray_depth, unsigned int ob_index, + float r_loc[3], float r_no[3], int *r_index, + ListBase *r_hit_list) { ARegion *ar = sctx->v3d_data.ar; bool retval = false; @@ -729,31 +837,55 @@ static bool snapDerivedMesh( switch (snap_to) { case SCE_SNAP_MODE_FACE: { - BVHTreeRayHit hit; + if (r_hit_list) { + struct RayCastAll_Data data; + + data.bvhdata = treedata; + data.raycast_callback = treedata->raycast_callback; + data.obmat = obmat; + data.timat = timat; + data.len_diff = len_diff; + data.local_scale = local_scale; + data.ob = ob; + data.ob_uuid = ob_index, + data.dm = dm; + data.hit_list = r_hit_list; + data.retval = retval; + + BLI_bvhtree_ray_cast_all( + treedata->tree, ray_start_local, ray_normal_local, 0.0f, + *ray_depth, raycast_all_cb, &data); + + retval = data.retval; + } + else { + BVHTreeRayHit hit; - hit.index = -1; - hit.dist = local_depth; + hit.index = -1; + hit.dist = local_depth; - if (treedata->tree && - BLI_bvhtree_ray_cast(treedata->tree, ray_start_local, ray_normal_local, 0.0f, - &hit, treedata->raycast_callback, treedata) != -1) - { - hit.dist += len_diff; - hit.dist /= local_scale; - if (hit.dist <= *ray_depth) { - *ray_depth = hit.dist; - copy_v3_v3(r_loc, hit.co); - copy_v3_v3(r_no, hit.no); - - /* back to worldspace */ - mul_m4_v3(obmat, r_loc); - mul_m3_v3(timat, r_no); - normalize_v3(r_no); - - retval = true; - - if (r_index) { - *r_index = dm_looptri_to_poly_index(dm, &treedata->looptri[hit.index]); + if (treedata->tree && + BLI_bvhtree_ray_cast( + treedata->tree, ray_start_local, ray_normal_local, 0.0f, + &hit, treedata->raycast_callback, treedata) != -1) + { + hit.dist += len_diff; + hit.dist /= local_scale; + if (hit.dist <= *ray_depth) { + *ray_depth = hit.dist; + copy_v3_v3(r_loc, hit.co); + copy_v3_v3(r_no, hit.no); + + /* back to worldspace */ + mul_m4_v3(obmat, r_loc); + mul_m3_v3(timat, r_no); + normalize_v3(r_no); + + retval = true; + + if (r_index) { + *r_index = dm_looptri_to_poly_index(dm, &treedata->looptri[hit.index]); + } } } } @@ -814,8 +946,10 @@ static bool snapEditMesh( SnapObjectContext *sctx, Object *ob, BMEditMesh *em, float obmat[4][4], const float mval[2], float *dist_px, const short snap_to, - const float ray_start[3], const float ray_normal[3], const float ray_origin[3], float *ray_depth, - float r_loc[3], float r_no[3], int *r_index) + const float ray_start[3], const float ray_normal[3], const float ray_origin[3], + float *ray_depth, const unsigned int ob_index, + float r_loc[3], float r_no[3], int *r_index, + ListBase *r_hit_list) { ARegion *ar = sctx->v3d_data.ar; bool retval = false; @@ -951,7 +1085,7 @@ static bool snapEditMesh( */ len_diff -= local_scale; /* make temp start point a bit away from bbox hit point. */ madd_v3_v3v3fl(ray_start_local, ray_org_local, ray_normal_local, - len_diff - len_v3v3(ray_start_local, ray_org_local)); + len_diff - len_v3v3(ray_start_local, ray_org_local)); local_depth -= len_diff; } else { @@ -961,32 +1095,55 @@ static bool snapEditMesh( switch (snap_to) { case SCE_SNAP_MODE_FACE: { - BVHTreeRayHit hit; + if (r_hit_list) { + struct RayCastAll_Data data; + + data.bvhdata = treedata; + data.raycast_callback = treedata->raycast_callback; + data.obmat = obmat; + data.timat = timat; + data.len_diff = len_diff; + data.local_scale = local_scale; + data.ob = ob; + data.ob_uuid = ob_index; + data.dm = NULL; + data.hit_list = r_hit_list; + data.retval = retval; + + BLI_bvhtree_ray_cast_all( + treedata->tree, ray_start_local, ray_normal_local, 0.0f, + *ray_depth, raycast_all_cb, &data); + + retval = data.retval; + } + else { + BVHTreeRayHit hit; - hit.index = -1; - hit.dist = local_depth; + hit.index = -1; + hit.dist = local_depth; - if (treedata->tree && - BLI_bvhtree_ray_cast( - treedata->tree, ray_start_local, ray_normal_local, 0.0f, - &hit, treedata->raycast_callback, treedata) != -1) - { - hit.dist += len_diff; - hit.dist /= local_scale; - if (hit.dist <= *ray_depth) { - *ray_depth = hit.dist; - copy_v3_v3(r_loc, hit.co); - copy_v3_v3(r_no, hit.no); - - /* back to worldspace */ - mul_m4_v3(obmat, r_loc); - mul_m3_v3(timat, r_no); - normalize_v3(r_no); - - retval = true; - - if (r_index) { - *r_index = hit.index; + if (treedata->tree && + BLI_bvhtree_ray_cast( + treedata->tree, ray_start_local, ray_normal_local, 0.0f, + &hit, treedata->raycast_callback, treedata) != -1) + { + hit.dist += len_diff; + hit.dist /= local_scale; + if (hit.dist <= *ray_depth) { + *ray_depth = hit.dist; + copy_v3_v3(r_loc, hit.co); + copy_v3_v3(r_no, hit.no); + + /* back to worldspace */ + mul_m4_v3(obmat, r_loc); + mul_m3_v3(timat, r_no); + normalize_v3(r_no); + + retval = true; + + if (r_index) { + *r_index = hit.index; + } } } } @@ -1050,11 +1207,13 @@ static bool snapEditMesh( static bool snapObject( SnapObjectContext *sctx, Object *ob, float obmat[4][4], bool use_obedit, const short snap_to, - const float mval[2], float *dist_px, - const float ray_start[3], const float ray_normal[3], const float ray_origin[3], float *ray_depth, + const float mval[2], float *dist_px, const unsigned int ob_index, + const float ray_start[3], const float ray_normal[3], const float ray_origin[3], + float *ray_depth, /* return args */ float r_loc[3], float r_no[3], int *r_index, - Object **r_ob, float r_obmat[4][4]) + Object **r_ob, float r_obmat[4][4], + ListBase *r_hit_list) { ARegion *ar = sctx->v3d_data.ar; bool retval = false; @@ -1066,8 +1225,10 @@ static bool snapObject( em = BKE_editmesh_from_object(ob); retval = snapEditMesh( sctx, ob, em, obmat, mval, dist_px, snap_to, - ray_start, ray_normal, ray_origin, ray_depth, - r_loc, r_no, r_index); + ray_start, ray_normal, ray_origin, + ray_depth, ob_index, + r_loc, r_no, r_index, + r_hit_list); } else { /* in this case we want the mesh from the editmesh, avoids stale data. see: T45978. @@ -1082,8 +1243,9 @@ static bool snapObject( } retval = snapDerivedMesh( sctx, ob, dm, obmat, mval, dist_px, snap_to, true, - ray_start, ray_normal, ray_origin, ray_depth, - r_loc, r_no, r_index); + ray_start, ray_normal, ray_origin, + ray_depth, ob_index, + r_loc, r_no, r_index, r_hit_list); dm->release(dm); } @@ -1132,19 +1294,22 @@ static bool snapObjectsRay( const float ray_start[3], const float ray_normal[3], const float ray_origin[3], float *ray_depth, /* return args */ float r_loc[3], float r_no[3], int *r_index, - Object **r_ob, float r_obmat[4][4]) + Object **r_ob, float r_obmat[4][4], + ListBase *r_hit_list) { Base *base; bool retval = false; + bool snap_obedit_first = snap_select == SNAP_ALL && obedit; + unsigned int ob_index = 0; - if (snap_select == SNAP_ALL && obedit) { + if (snap_obedit_first) { Object *ob = obedit; retval |= snapObject( sctx, ob, ob->obmat, true, snap_to, - mval, dist_px, + mval, dist_px, ob_index++, ray_start, ray_normal, ray_origin, ray_depth, - r_loc, r_no, r_index, r_ob, r_obmat); + r_loc, r_no, r_index, r_ob, r_obmat, r_hit_list); } /* Need an exception for particle edit because the base is flagged with BA_HAS_RECALC_DATA @@ -1157,9 +1322,9 @@ static bool snapObjectsRay( Object *ob = base->object; retval |= snapObject( sctx, ob, ob->obmat, false, snap_to, - mval, dist_px, + mval, dist_px, ob_index++, ray_start, ray_normal, ray_origin, ray_depth, - r_loc, r_no, r_index, r_ob, r_obmat); + r_loc, r_no, r_index, r_ob, r_obmat, r_hit_list); } for (base = sctx->scene->base.first; base != NULL; base = base->next) { @@ -1173,12 +1338,6 @@ static bool snapObjectsRay( Object *ob_snap = ob; bool use_obedit = false; - /* for linked objects, use the same object but a different matrix */ - if (obedit && ob->data == obedit->data) { - use_obedit = true; - ob_snap = obedit; - } - if (ob->transflag & OB_DUPLI) { DupliObject *dupli_ob; ListBase *lb = object_duplilist(sctx->bmain->eval_ctx, sctx->scene, ob); @@ -1189,19 +1348,33 @@ static bool snapObjectsRay( retval |= snapObject( sctx, dupli_snap, dupli_ob->mat, use_obedit_dupli, snap_to, - mval, dist_px, + mval, dist_px, ob_index++, ray_start, ray_normal, ray_origin, ray_depth, - r_loc, r_no, r_index, r_ob, r_obmat); + r_loc, r_no, r_index, r_ob, r_obmat, r_hit_list); } free_object_duplilist(lb); } + if (obedit) { + if ((ob == obedit) && + (snap_obedit_first || (snap_select == SNAP_NOT_OBEDIT))) + { + continue; + } + + if (ob->data == obedit->data) { + /* for linked objects, use the same object but a different matrix */ + use_obedit = true; + ob_snap = obedit; + } + } + retval |= snapObject( sctx, ob_snap, ob->obmat, use_obedit, snap_to, - mval, dist_px, + mval, dist_px, ob_index++, ray_start, ray_normal, ray_origin, ray_depth, - r_loc, r_no, r_index, r_ob, r_obmat); + r_loc, r_no, r_index, r_ob, r_obmat, r_hit_list); } } @@ -1315,7 +1488,53 @@ bool ED_transform_snap_object_project_ray_ex( base_act, obedit, ray_start, ray_normal, ray_start, ray_depth, r_loc, r_no, r_index, - r_ob, r_obmat); + r_ob, r_obmat, NULL); +} + +/** + * Fill in a list of all hits. + * + * \param ray_depth: Only depths in this range are considered, -1.0 for maximum. + * \param sort: Optionally sort the hits by depth. + * \param r_hit_list: List of #SnapObjectHitDepth (caller must free). + */ +bool ED_transform_snap_object_project_ray_all( + SnapObjectContext *sctx, + const struct SnapObjectParams *params, + const float ray_start[3], const float ray_normal[3], + float ray_depth, bool sort, + ListBase *r_hit_list) +{ + Base *base_act = params->use_object_active ? sctx->scene->basact : NULL; + Object *obedit = params->use_object_edit ? sctx->scene->obedit : NULL; + + if (ray_depth == -1.0f) { + ray_depth = BVH_RAYCAST_DIST_MAX; + } + +#ifdef DEBUG + float ray_depth_prev = ray_depth; +#endif + + bool retval = snapObjectsRay( + sctx, + params->snap_select, params->snap_to, + NULL, NULL, + base_act, obedit, + ray_start, ray_normal, ray_start, &ray_depth, + NULL, NULL, NULL, NULL, NULL, + r_hit_list); + + /* meant to be readonly for 'all' hits, ensure it is */ +#ifdef DEBUG + BLI_assert(ray_depth_prev == ray_depth); +#endif + + if (sort) { + BLI_listbase_sort(r_hit_list, hit_depth_cmp); + } + + return retval; } /** @@ -1327,7 +1546,7 @@ bool ED_transform_snap_object_project_ray_ex( */ static bool transform_snap_context_project_ray_impl( SnapObjectContext *sctx, - const float ray_start[3], const float ray_normal[3], float *ray_dist, + const float ray_start[3], const float ray_normal[3], float *ray_depth, float r_co[3], float r_no[3]) { bool ret; @@ -1340,7 +1559,7 @@ static bool transform_snap_context_project_ray_impl( .snap_to = SCE_SNAP_MODE_FACE, .use_object_edit = (sctx->scene->obedit != NULL), }, - ray_start, ray_normal, ray_dist, + ray_start, ray_normal, ray_depth, r_co, r_no, NULL, NULL, NULL); @@ -1349,13 +1568,13 @@ static bool transform_snap_context_project_ray_impl( bool ED_transform_snap_object_project_ray( SnapObjectContext *sctx, - const float ray_origin[3], const float ray_direction[3], float *ray_dist, + const float ray_origin[3], const float ray_direction[3], float *ray_depth, float r_co[3], float r_no[3]) { - float ray_dist_fallback; - if (ray_dist == NULL) { - ray_dist_fallback = BVH_RAYCAST_DIST_MAX; - ray_dist = &ray_dist_fallback; + float ray_depth_fallback; + if (ray_depth == NULL) { + ray_depth_fallback = BVH_RAYCAST_DIST_MAX; + ray_depth = &ray_depth_fallback; } float no_fallback[3]; @@ -1365,7 +1584,7 @@ bool ED_transform_snap_object_project_ray( return transform_snap_context_project_ray_impl( sctx, - ray_origin, ray_direction, ray_dist, + ray_origin, ray_direction, ray_depth, r_co, r_no); } @@ -1376,7 +1595,7 @@ static bool transform_snap_context_project_view3d_mixed_impl( bool use_depth, float r_co[3], float r_no[3]) { - float ray_dist = BVH_RAYCAST_DIST_MAX; + float ray_depth = BVH_RAYCAST_DIST_MAX; bool is_hit = false; float r_no_dummy[3]; @@ -1394,7 +1613,7 @@ static bool transform_snap_context_project_view3d_mixed_impl( for (int i = 0; i < 3; i++) { if ((params->snap_to_flag & (1 << i)) && (is_hit == false || use_depth)) { if (use_depth == false) { - ray_dist = BVH_RAYCAST_DIST_MAX; + ray_depth = BVH_RAYCAST_DIST_MAX; } params_temp.snap_to = elem_type[i]; @@ -1402,7 +1621,7 @@ static bool transform_snap_context_project_view3d_mixed_impl( if (ED_transform_snap_object_project_view3d( sctx, ¶ms_temp, - mval, dist_px, &ray_dist, + mval, dist_px, &ray_depth, r_co, r_no)) { is_hit = true; @@ -1470,7 +1689,7 @@ bool ED_transform_snap_object_project_view3d_ex( mval, dist_px, base_act, obedit, ray_start, ray_normal, ray_orgigin, ray_depth, - r_loc, r_no, r_index, NULL, NULL); + r_loc, r_no, r_index, NULL, NULL, NULL); } bool ED_transform_snap_object_project_view3d( @@ -1488,4 +1707,32 @@ bool ED_transform_snap_object_project_view3d( r_loc, r_no, NULL); } +/** + * see: #ED_transform_snap_object_project_ray_all + */ +bool ED_transform_snap_object_project_all_view3d_ex( + SnapObjectContext *sctx, + const struct SnapObjectParams *params, + const float mval[2], + float ray_depth, bool sort, + ListBase *r_hit_list) +{ + float ray_start[3], ray_normal[3]; + + BLI_assert(params->snap_to == SCE_SNAP_MODE_FACE); + + if (!ED_view3d_win_to_ray_ex( + sctx->v3d_data.ar, sctx->v3d_data.v3d, + mval, NULL, ray_normal, ray_start, true)) + { + return false; + } + + return ED_transform_snap_object_project_ray_all( + sctx, + params, + ray_start, ray_normal, ray_depth, sort, + r_hit_list); +} + /** \} */ |