Nicholas Bishop
473838aec9
This adds the "Apply Base" feature from my gsoc2010 branch. Apply Base partially applies the modifier, in that the mesh is reshaped to more closely match the deformed mesh. The upper-level displacements are recalculated so that the highest multires level appears unchanged. Multires does not currently deal well with too large displacements. An easy-to-reproduce example: create any mesh type, add multires, subdivide a few times, then use the sculpt grab brush to drag the entire mesh over a few units. At the highest level, and at level 0, the mesh looks fine, but all of the intervening levels will have ugly spikes on them. This patch doesn't help with situations where you can't modify the base mesh, but otherwise works around the problem fairly well (albeit with a heuristic, not an exact solution.)
95 lines
3.7 KiB
C++
95 lines
3.7 KiB
C++
/*
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* $Id$
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*
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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) 2007 by Nicholas Bishop
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* All rights reserved.
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*
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* The Original Code is: all of this file.
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*
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* Contributor(s): none yet.
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*
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* ***** END GPL LICENSE BLOCK *****
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*/
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#ifndef BKE_MULTIRES_H
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#define BKE_MULTIRES_H
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struct DerivedMesh;
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struct Mesh;
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struct MFace;
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struct Multires;
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struct MultiresModifierData;
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struct ModifierData;
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struct Object;
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struct Scene;
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struct MDisps;
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void multires_mark_as_modified(struct Object *ob);
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void multires_force_update(struct Object *ob);
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void multires_force_render_update(struct Object *ob);
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void multires_force_external_reload(struct Object *ob);
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void multiresModifier_set_levels_from_disps(struct MultiresModifierData *mmd, struct Object *ob);
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struct DerivedMesh *multires_dm_create_from_derived(struct MultiresModifierData*,
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int local_mmd, struct DerivedMesh*, struct Object *, int, int);
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struct MultiresModifierData *find_multires_modifier_before(struct Scene *scene,
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struct ModifierData *lastmd);
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struct DerivedMesh *get_multires_dm(struct Scene *scene, struct MultiresModifierData *mmd,
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struct Object *ob);
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void multiresModifier_del_levels(struct MultiresModifierData *, struct Object *, int direction);
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void multiresModifier_base_apply(struct MultiresModifierData *mmd, struct Object *ob);
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void multiresModifier_subdivide(struct MultiresModifierData *mmd, struct Object *ob,
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int updateblock, int simple);
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int multiresModifier_reshape(struct Scene *scene, struct MultiresModifierData *mmd,
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struct Object *dst, struct Object *src);
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int multiresModifier_reshapeFromDM(struct Scene *scene, struct MultiresModifierData *mmd,
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struct Object *ob, struct DerivedMesh *srcdm);
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int multiresModifier_reshapeFromDeformMod(struct Scene *scene, struct MultiresModifierData *mmd,
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struct Object *ob, struct ModifierData *md);
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void multires_stitch_grids(struct Object *);
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/* Related to the old multires */
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void multires_free(struct Multires *mr);
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void multires_load_old(struct Object *ob, struct Mesh *me);
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void multires_load_old_250(struct Mesh *);
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void multiresModifier_scale_disp(struct Scene *scene, struct Object *ob);
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void multiresModifier_prepare_join(struct Scene *scene, struct Object *ob, struct Object *to_ob);
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int multires_mdisp_corners(struct MDisps *s);
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void multires_mdisp_smooth_bounds(struct MDisps *disps);
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/* update multires data after topology changing */
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void multires_topology_changed(struct Object *ob);
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/**** interpolation stuff ****/
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void old_mdisps_bilinear(float out[3], float (*disps)[3], int st, float u, float v);
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void mdisp_rot_crn_to_face(int S, int corners, int face_side, float x, float y, float *u, float *v);
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int mdisp_rot_face_to_crn(int corners, int face_side, float u, float v, float *x, float *y);
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void mdisp_apply_weight(int S, int corners, int x, int y, int face_side, float crn_weight[4][2], float *u_r, float *v_r);
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void mdisp_flip_disp(int S, int corners, float axis_x[2], float axis_y[2], float disp[3]);
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void mdisp_join_tris(struct MDisps *dst, struct MDisps *tri1, struct MDisps *tri2);
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#endif
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