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/*
* ***** BEGIN GPL LICENSE BLOCK *****
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* The Original Code is Copyright (C) 2005 Blender Foundation.
* All rights reserved.
*
* The Original Code is: all of this file.
*
* Contributor(s): Ben Batt
*
* ***** END GPL LICENSE BLOCK *****
*/
/** \file blender/modifiers/intern/MOD_util.c
* \ingroup modifiers
*/
#include <string.h>
#include "DNA_lattice_types.h"
#include "DNA_modifier_types.h"
#include "DNA_object_types.h"
#include "DNA_curve_types.h"
#include "DNA_meshdata_types.h"
#include "BLI_utildefines.h"
#include "BLI_math_vector.h"
#include "BLI_math_matrix.h"
#include "BKE_cdderivedmesh.h"
#include "BKE_deform.h"
#include "BKE_lattice.h"
#include "BKE_mesh.h"
#include "BKE_displist.h"
#include "BKE_modifier.h"
#include "MOD_util.h"
#include "MOD_modifiertypes.h"
#include "MEM_guardedalloc.h"
#include "RE_shader_ext.h"
void get_texture_value(Tex *texture, float *tex_co, TexResult *texres)
{
int result_type;
/* no node textures for now */
result_type = multitex_ext_safe(texture, tex_co, texres);
/* if the texture gave an RGB value, we assume it didn't give a valid
* intensity, so calculate one (formula from do_material_tex).
* if the texture didn't give an RGB value, copy the intensity across
*/
if(result_type & TEX_RGB)
texres->tin = (0.35f * texres->tr + 0.45f * texres->tg
+ 0.2f * texres->tb);
else
texres->tr = texres->tg = texres->tb = texres->tin;
}
void get_texture_coords(MappingInfoModifierData *dmd, Object *ob,
DerivedMesh *dm,
float (*co)[3], float (*texco)[3],
int numVerts)
{
int i;
int texmapping = dmd->texmapping;
float mapob_imat[4][4];
if(texmapping == MOD_DISP_MAP_OBJECT) {
if(dmd->map_object)
invert_m4_m4(mapob_imat, dmd->map_object->obmat);
else /* if there is no map object, default to local */
texmapping = MOD_DISP_MAP_LOCAL;
}
/* UVs need special handling, since they come from faces */
if(texmapping == MOD_DISP_MAP_UV) {
if(CustomData_has_layer(&dm->loopData, CD_MLOOPUV)) {
MPoly *mpoly = dm->getPolyArray(dm);
MPoly *mp;
MLoop *mloop = dm->getLoopArray(dm);
char *done = MEM_callocN(sizeof(*done) * numVerts,
"get_texture_coords done");
int numPolys = dm->getNumPolys(dm);
char uvname[32];
MLoopUV *mloop_uv;
CustomData_validate_layer_name(&dm->loopData, CD_MLOOPUV, dmd->uvlayer_name, uvname);
mloop_uv = CustomData_get_layer_named(&dm->loopData, CD_MLOOPUV, uvname);
/* verts are given the UV from the first face that uses them */
for(i = 0, mp = mpoly; i < numPolys; ++i, ++mp) {
unsigned int fidx= mp->totloop - 1;
do {
unsigned int lidx= mp->loopstart + fidx;
unsigned int vidx= mloop[lidx].v;
if (done[vidx] == 0) {
/* remap UVs from [0, 1] to [-1, 1] */
texco[vidx][0] = (mloop_uv[lidx].uv[0] * 2.0f) - 1.0f;
texco[vidx][1] = (mloop_uv[lidx].uv[1] * 2.0f) - 1.0f;
done[vidx] = 1;
}
} while (fidx--);
}
MEM_freeN(done);
return;
} else /* if there are no UVs, default to local */
texmapping = MOD_DISP_MAP_LOCAL;
}
for(i = 0; i < numVerts; ++i, ++co, ++texco) {
switch(texmapping) {
case MOD_DISP_MAP_LOCAL:
copy_v3_v3(*texco, *co);
break;
case MOD_DISP_MAP_GLOBAL:
mul_v3_m4v3(*texco, ob->obmat, *co);
break;
case MOD_DISP_MAP_OBJECT:
mul_v3_m4v3(*texco, ob->obmat, *co);
mul_m4_v3(mapob_imat, *texco);
break;
}
}
}
void modifier_vgroup_cache(ModifierData *md, float (*vertexCos)[3])
{
while((md=md->next) && md->type==eModifierType_Armature) {
ArmatureModifierData *amd = (ArmatureModifierData*) md;
if(amd->multi && amd->prevCos==NULL)
amd->prevCos= MEM_dupallocN(vertexCos);
else
break;
}
/* lattice/mesh modifier too */
}
/* returns a cdderivedmesh if dm == NULL or is another type of derivedmesh */
DerivedMesh *get_cddm(Object *ob, struct BMEditMesh *em, DerivedMesh *dm, float (*vertexCos)[3])
{
if(dm && dm->type == DM_TYPE_CDDM)
return dm;
if(!dm) {
dm= get_dm(ob, em, dm, vertexCos, 0);
}
else {
dm= CDDM_copy(dm, 0);
CDDM_apply_vert_coords(dm, vertexCos);
}
if(dm)
CDDM_calc_normals(dm);
return dm;
}
/* returns a derived mesh if dm == NULL, for deforming modifiers that need it */
DerivedMesh *get_dm(Object *ob, struct BMEditMesh *em, DerivedMesh *dm, float (*vertexCos)[3], int orco)
{
if(dm)
return dm;
if(ob->type==OB_MESH) {
if(em) dm= CDDM_from_BMEditMesh(em, ob->data, 0);
else dm = CDDM_from_mesh((struct Mesh *)(ob->data), ob);
if(vertexCos) {
CDDM_apply_vert_coords(dm, vertexCos);
//CDDM_calc_normals(dm);
}
if(orco)
DM_add_vert_layer(dm, CD_ORCO, CD_ASSIGN, get_mesh_orco_verts(ob));
}
else if(ELEM3(ob->type,OB_FONT,OB_CURVE,OB_SURF)) {
dm= CDDM_from_curve(ob);
}
return dm;
}
void modifier_get_vgroup(Object *ob, DerivedMesh *dm, const char *name, MDeformVert **dvert, int *defgrp_index)
{
*defgrp_index = defgroup_name_index(ob, name);
*dvert = NULL;
if(*defgrp_index >= 0) {
if(ob->type == OB_LATTICE)
*dvert = lattice_get_deform_verts(ob);
else if(dm)
*dvert = dm->getVertDataArray(dm, CD_MDEFORMVERT);
}
}
/* only called by BKE_modifier.h/modifier.c */
void modifier_type_init(ModifierTypeInfo *types[])
{
#define INIT_TYPE(typeName) (types[eModifierType_##typeName] = &modifierType_##typeName)
INIT_TYPE(None);
INIT_TYPE(Curve);
INIT_TYPE(Lattice);
INIT_TYPE(Subsurf);
INIT_TYPE(Build);
INIT_TYPE(Array);
INIT_TYPE(Mirror);
INIT_TYPE(EdgeSplit);
INIT_TYPE(Bevel);
INIT_TYPE(Displace);
INIT_TYPE(UVProject);
INIT_TYPE(Decimate);
INIT_TYPE(Smooth);
INIT_TYPE(Cast);
INIT_TYPE(Wave);
INIT_TYPE(Armature);
INIT_TYPE(Hook);
INIT_TYPE(Softbody);
INIT_TYPE(Cloth);
INIT_TYPE(Collision);
INIT_TYPE(Boolean);
INIT_TYPE(MeshDeform);
INIT_TYPE(Ocean);
INIT_TYPE(ParticleSystem);
INIT_TYPE(ParticleInstance);
INIT_TYPE(Explode);
INIT_TYPE(Shrinkwrap);
INIT_TYPE(Fluidsim);
INIT_TYPE(Mask);
INIT_TYPE(SimpleDeform);
INIT_TYPE(Multires);
INIT_TYPE(Surface);
INIT_TYPE(Smoke);
INIT_TYPE(ShapeKey);
INIT_TYPE(Solidify);
INIT_TYPE(Screw);
INIT_TYPE(Warp);
INIT_TYPE(WeightVGEdit);
INIT_TYPE(WeightVGMix);
INIT_TYPE(WeightVGProximity);
INIT_TYPE(DynamicPaint);
INIT_TYPE(Remesh);
INIT_TYPE(NgonInterp);
#undef INIT_TYPE
}
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