89 lines
3.6 KiB
C++
89 lines
3.6 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) 2011 by Bastien Montagne.
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* All rights reserved.
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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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*/
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/** \file blender/modifiers/intern/MOD_weightvg_util.h
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* \ingroup modifiers
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*/
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#ifndef MOD_WEIGHTVG_UTIL_H
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#define MOD_WEIGHTVG_UTIL_H
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/* so modifier types match their defines */
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#include "MOD_modifiertypes.h"
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struct CurveMapping;
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struct DerivedMesh;
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struct Object;
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struct Tex;
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/*
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* XXX I'd like to make modified weights visible in WeightPaint mode,
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* but couldn't figure a way to do this...
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* Maybe this will need changes in mesh_calc_modifiers (DerivedMesh.c)?
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* Or the WeightPaint mode code itself?
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*/
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/**************************************
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* Util functions. *
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**************************************/
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/* We cannot divide by zero (what a surprise...).
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* So if -MOD_WEIGHTVGROUP_DIVMODE_ZEROFLOOR < weightf < MOD_WEIGHTVGROUP_DIVMODE_ZEROFLOOR,
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* we clamp weightf to this value (or its negative version).
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* Also used to avoid null power factor.
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*/
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#define MOD_WVG_ZEROFLOOR 1.0e-32f
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/* Maps new_w weights in place, using either one of the predifined functions, or a custom curve.
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* Return values are in new_w.
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* If indices is not NULL, it must be a table of same length as org_w and new_w, mapping to the real
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* vertex index (in case the weight tables do not cover the whole vertices...).
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* cmap might be NULL, in which case curve mapping mode will return unmodified data.
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*/
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void weightvg_do_map(int num, float *new_w, short mode, struct CurveMapping *cmap);
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/* Applies new_w weights to org_w ones, using either a texture, vgroup or constant value as factor.
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* Return values are in org_w.
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* If indices is not NULL, it must be a table of same length as org_w and new_w, mapping to the real
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* vertex index (in case the weight tables do not cover the whole vertices...).
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* XXX The standard “factor” value is assumed in [0.0, 1.0] range. Else, weird results might appear.
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*/
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void weightvg_do_mask(int num, const int *indices, float *org_w, const float *new_w, Object *ob,
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DerivedMesh *dm, float fact, const char defgrp_name[32], Tex *texture,
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int tex_use_channel, int tex_mapping, Object *tex_map_object,
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const char *tex_uvlayer_name);
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/* Applies weights to given vgroup (defgroup), and optionnaly add/remove vertices from the group.
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* If indices is not NULL, it must be a table of same length as weights, mapping to the real
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* vertex index (in case the weight table does not cover the whole vertices...).
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*/
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void weightvg_update_vg(MDeformVert *dvert, int defgrp_idx, MDeformWeight **dws, int num,
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const int *indices, const float *weights, int do_add,
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float add_thresh, int do_rem, float rem_thresh);
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#endif /* MOD_WEIGHTVG_UTIL_H */
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