Howard Trickey
b640fd829e
Will document the new options in release notes, then in manual. Still a bit of work to do on the bulging shape that appears on cube corners if using arc inner miters, but will do that later. Also need to do something smarter in clamp overlap.
263 lines
8.0 KiB
C
263 lines
8.0 KiB
C
/*
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* ***** BEGIN GPL LICENSE BLOCK *****
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* The Original Code is Copyright (C) 2005 by the Blender Foundation.
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* All rights reserved.
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*
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* Contributor(s): Daniel Dunbar
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* Ton Roosendaal,
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* Ben Batt,
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* Brecht Van Lommel,
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* Campbell Barton
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*
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* ***** END GPL LICENSE BLOCK *****
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*
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*/
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/** \file blender/modifiers/intern/MOD_bevel.c
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* \ingroup modifiers
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*/
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#include "MEM_guardedalloc.h"
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#include "DNA_mesh_types.h"
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#include "DNA_meshdata_types.h"
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#include "DNA_object_types.h"
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#include "DNA_scene_types.h"
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#include "BLI_utildefines.h"
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#include "BLI_linklist_stack.h"
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#include "BLI_math.h"
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#include "BLI_string.h"
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#include "BKE_deform.h"
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#include "BKE_mesh.h"
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#include "BKE_modifier.h"
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#include "MOD_util.h"
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#include "bmesh.h"
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#include "bmesh_tools.h"
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#include "DEG_depsgraph_query.h"
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static void initData(ModifierData *md)
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{
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BevelModifierData *bmd = (BevelModifierData *) md;
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bmd->value = 0.1f;
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bmd->res = 1;
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bmd->flags = 0;
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bmd->val_flags = MOD_BEVEL_AMT_OFFSET;
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bmd->lim_flags = 0;
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bmd->e_flags = 0;
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bmd->edge_flags = 0;
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bmd->face_str_mode = MOD_BEVEL_FACE_STRENGTH_NONE;
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bmd->miter_inner = MOD_BEVEL_MITER_SHARP;
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bmd->miter_outer = MOD_BEVEL_MITER_SHARP;
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bmd->spread = 0.1f;
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bmd->mat = -1;
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bmd->profile = 0.5f;
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bmd->bevel_angle = DEG2RADF(30.0f);
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bmd->defgrp_name[0] = '\0';
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bmd->clnordata.faceHash = NULL;
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}
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static void copyData(const ModifierData *md_src, ModifierData *md_dst, const int flag)
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{
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BevelModifierData *bmd_dst = (BevelModifierData *)md_dst;
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modifier_copyData_generic(md_src, md_dst, flag);
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bmd_dst->clnordata.faceHash = NULL;
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}
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static CustomDataMask requiredDataMask(Object *UNUSED(ob), ModifierData *md)
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{
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BevelModifierData *bmd = (BevelModifierData *)md;
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CustomDataMask dataMask = 0;
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/* ask for vertexgroups if we need them */
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if (bmd->defgrp_name[0]) dataMask |= CD_MASK_MDEFORMVERT;
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return dataMask;
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}
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/*
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* This calls the new bevel code (added since 2.64)
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*/
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static Mesh *applyModifier(ModifierData *md, const ModifierEvalContext *ctx, Mesh *mesh)
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{
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Mesh *result;
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BMesh *bm;
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BMIter iter;
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BMEdge *e;
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BMVert *v;
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float weight, weight2;
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int vgroup = -1;
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MDeformVert *dvert = NULL;
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BevelModifierData *bmd = (BevelModifierData *) md;
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const float threshold = cosf(bmd->bevel_angle + 0.000000175f);
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const bool vertex_only = (bmd->flags & MOD_BEVEL_VERT) != 0;
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const bool do_clamp = !(bmd->flags & MOD_BEVEL_OVERLAP_OK);
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const int offset_type = bmd->val_flags;
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const float value = bmd->value;
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const int mat = CLAMPIS(bmd->mat, -1, ctx->object->totcol - 1);
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const bool loop_slide = (bmd->flags & MOD_BEVEL_EVEN_WIDTHS) == 0;
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const bool mark_seam = (bmd->edge_flags & MOD_BEVEL_MARK_SEAM);
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const bool mark_sharp = (bmd->edge_flags & MOD_BEVEL_MARK_SHARP);
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bool harden_normals = (bmd->flags & MOD_BEVEL_HARDEN_NORMALS);
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const int face_strength_mode = bmd->face_str_mode;
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const int miter_outer = bmd->miter_outer;
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const int miter_inner = bmd->miter_inner;
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const float spread = bmd->spread;
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bm = BKE_mesh_to_bmesh_ex(
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mesh,
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&(struct BMeshCreateParams){0},
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&(struct BMeshFromMeshParams){
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.calc_face_normal = true,
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.add_key_index = false,
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.use_shapekey = true,
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.active_shapekey = ctx->object->shapenr,
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.cd_mask_extra = CD_MASK_ORIGINDEX,
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});
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if ((bmd->lim_flags & MOD_BEVEL_VGROUP) && bmd->defgrp_name[0])
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MOD_get_vgroup(ctx->object, mesh, bmd->defgrp_name, &dvert, &vgroup);
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if (vertex_only) {
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BM_ITER_MESH (v, &iter, bm, BM_VERTS_OF_MESH) {
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if (!BM_vert_is_manifold(v))
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continue;
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if (bmd->lim_flags & MOD_BEVEL_WEIGHT) {
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weight = BM_elem_float_data_get(&bm->vdata, v, CD_BWEIGHT);
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if (weight == 0.0f)
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continue;
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}
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else if (vgroup != -1) {
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weight = defvert_array_find_weight_safe(dvert, BM_elem_index_get(v), vgroup);
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/* Check is against 0.5 rather than != 0.0 because cascaded bevel modifiers will
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* interpolate weights for newly created vertices, and may cause unexpected "selection" */
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if (weight < 0.5f)
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continue;
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}
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BM_elem_flag_enable(v, BM_ELEM_TAG);
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}
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}
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else if (bmd->lim_flags & MOD_BEVEL_ANGLE) {
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BM_ITER_MESH (e, &iter, bm, BM_EDGES_OF_MESH) {
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/* check for 1 edge having 2 face users */
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BMLoop *l_a, *l_b;
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if (BM_edge_loop_pair(e, &l_a, &l_b)) {
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if (dot_v3v3(l_a->f->no, l_b->f->no) < threshold) {
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BM_elem_flag_enable(e, BM_ELEM_TAG);
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BM_elem_flag_enable(e->v1, BM_ELEM_TAG);
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BM_elem_flag_enable(e->v2, BM_ELEM_TAG);
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}
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}
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}
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}
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else {
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/* crummy, is there a way just to operator on all? - campbell */
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BM_ITER_MESH (e, &iter, bm, BM_EDGES_OF_MESH) {
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if (BM_edge_is_manifold(e)) {
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if (bmd->lim_flags & MOD_BEVEL_WEIGHT) {
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weight = BM_elem_float_data_get(&bm->edata, e, CD_BWEIGHT);
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if (weight == 0.0f)
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continue;
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}
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else if (vgroup != -1) {
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weight = defvert_array_find_weight_safe(dvert, BM_elem_index_get(e->v1), vgroup);
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weight2 = defvert_array_find_weight_safe(dvert, BM_elem_index_get(e->v2), vgroup);
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if (weight < 0.5f || weight2 < 0.5f)
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continue;
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}
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BM_elem_flag_enable(e, BM_ELEM_TAG);
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BM_elem_flag_enable(e->v1, BM_ELEM_TAG);
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BM_elem_flag_enable(e->v2, BM_ELEM_TAG);
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}
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}
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}
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if (harden_normals && !(((Mesh *)ctx->object->data)->flag & ME_AUTOSMOOTH)) {
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modifier_setError(md, "Enable 'Auto Smooth' option in mesh settings for hardening");
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harden_normals = false;
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}
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BM_mesh_bevel(bm, value, offset_type, bmd->res, bmd->profile,
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vertex_only, bmd->lim_flags & MOD_BEVEL_WEIGHT, do_clamp,
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dvert, vgroup, mat, loop_slide, mark_seam, mark_sharp,
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harden_normals, face_strength_mode,
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miter_outer, miter_inner, spread, mesh->smoothresh);
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result = BKE_mesh_from_bmesh_for_eval_nomain(bm, 0);
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BLI_assert(bm->vtoolflagpool == NULL &&
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bm->etoolflagpool == NULL &&
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bm->ftoolflagpool == NULL); /* make sure we never alloc'd these */
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BM_mesh_free(bm);
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if (bmd->clnordata.faceHash)
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BLI_ghash_free(bmd->clnordata.faceHash, NULL, NULL);
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result->runtime.cd_dirty_vert |= CD_MASK_NORMAL;
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return result;
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}
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static bool dependsOnNormals(ModifierData *UNUSED(md))
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{
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return true;
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}
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ModifierTypeInfo modifierType_Bevel = {
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/* name */ "Bevel",
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/* structName */ "BevelModifierData",
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/* structSize */ sizeof(BevelModifierData),
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/* type */ eModifierTypeType_Constructive,
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/* flags */ eModifierTypeFlag_AcceptsMesh |
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eModifierTypeFlag_SupportsEditmode |
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eModifierTypeFlag_EnableInEditmode |
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eModifierTypeFlag_AcceptsCVs,
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/* copyData */ copyData,
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/* deformVerts_DM */ NULL,
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/* deformMatrices_DM */ NULL,
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/* deformVertsEM_DM */ NULL,
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/* deformMatricesEM_DM*/NULL,
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/* applyModifier_DM */ NULL,
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/* deformVerts */ NULL,
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/* deformMatrices */ NULL,
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/* deformVertsEM */ NULL,
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/* deformMatricesEM */ NULL,
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/* applyModifier */ applyModifier,
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/* initData */ initData,
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/* requiredDataMask */ requiredDataMask,
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/* freeData */ NULL,
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/* isDisabled */ NULL,
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/* updateDepsgraph */ NULL,
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/* dependsOnTime */ NULL,
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/* dependsOnNormals */ dependsOnNormals,
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/* foreachObjectLink */ NULL,
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/* foreachIDLink */ NULL,
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/* foreachTexLink */ NULL,
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};
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