curve_deform.c File Reference

#include <math.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "BLI_math.h"
#include "BLI_utildefines.h"
#include "DNA_curve_types.h"
#include "DNA_meshdata_types.h"
#include "DNA_object_types.h"
#include "BKE_anim_path.h"
#include "BKE_curve.h"
#include "BKE_editmesh.h"
#include "BKE_lattice.h"
#include "BKE_modifier.h"
#include "BKE_deform.h"

Go to the source code of this file.

Classes
struct	CurveDeform

Macros
#define	DEFORM_OP(dvert)
#define	DEFORM_OP_MINMAX(dvert)
#define	DEFORM_OP_CLAMPED(dvert)

Functions
Curve Deform Internal Utilities
static void	init_curve_deform (const Object *ob_curve, const Object *ob_target, CurveDeform *cd)
static bool	calc_curve_deform (const Object *ob_curve, float co[3], const short axis, const CurveDeform *cd, float r_quat[4])
Curve Deform #BKE_curve_deform_coords API
#BKE_curve_deform and related functions.
static void	curve_deform_coords_impl (const Object *ob_curve, const Object *ob_target, float(*vert_coords)[3], const int vert_coords_len, const MDeformVert *dvert, const int defgrp_index, const short flag, const short defaxis, BMEditMesh *em_target)
void	BKE_curve_deform_coords (const Object *ob_curve, const Object *ob_target, float(*vert_coords)[3], const int vert_coords_len, const MDeformVert *dvert, const int defgrp_index, const short flag, const short defaxis)
void	BKE_curve_deform_coords_with_editmesh (const Object *ob_curve, const Object *ob_target, float(*vert_coords)[3], const int vert_coords_len, const int defgrp_index, const short flag, const short defaxis, BMEditMesh *em_target)
void	BKE_curve_deform_co (const Object *ob_curve, const Object *ob_target, const float orco[3], float vec[3], const int no_rot_axis, float r_mat[3][3])

Detailed Description

Deform coordinates by a curve object (used by modifier).

Definition in file curve_deform.c.

Macro Definition Documentation

DEFORM_OP

#define DEFORM_OP

(

dvert

)

Value:

  { \
    const float weight = invert_vgroup ? 1.0f - BKE_defvert_find_weight(dvert, defgrp_index) : \
                                         BKE_defvert_find_weight(dvert, defgrp_index); \
    if (weight > 0.0f) { \
      float vec[3]; \
      mul_m4_v3(cd.curvespace, vert_coords[a]); \
      copy_v3_v3(vec, vert_coords[a]); \
      calc_curve_deform(ob_curve, vec, defaxis, &cd, NULL); \
      interp_v3_v3v3(vert_coords[a], vert_coords[a], vec, weight); \
      mul_m4_v3(cd.objectspace, vert_coords[a]); \
    } \
  } \
  ((void)0)

DEFORM_OP_CLAMPED

#define DEFORM_OP_CLAMPED

(

dvert

)

Value:

  { \
    const float weight = invert_vgroup ? 1.0f - BKE_defvert_find_weight(dvert, defgrp_index) : \
                                         BKE_defvert_find_weight(dvert, defgrp_index); \
    if (weight > 0.0f) { \
      float vec[3]; \
      copy_v3_v3(vec, vert_coords[a]); \
      calc_curve_deform(ob_curve, vec, defaxis, &cd, NULL); \
      interp_v3_v3v3(vert_coords[a], vert_coords[a], vec, weight); \
      mul_m4_v3(cd.objectspace, vert_coords[a]); \
    } \
  } \
  ((void)0)

DEFORM_OP_MINMAX

#define DEFORM_OP_MINMAX

(

dvert

)

Value:

  { \
    const float weight = invert_vgroup ? 1.0f - BKE_defvert_find_weight(dvert, defgrp_index) : \
                                         BKE_defvert_find_weight(dvert, defgrp_index); \
    if (weight > 0.0f) { \
      mul_m4_v3(cd.curvespace, vert_coords[a]); \
      minmax_v3v3_v3(cd.dmin, cd.dmax, vert_coords[a]); \
    } \
  } \
  ((void)0)

Function Documentation

BKE_curve_deform_co()

void BKE_curve_deform_co	(	const Object *	ob_curve,
		const Object *	ob_target,
		const float	orco[3],
		float	vec[3],
		const int	no_rot_axis,
		float	r_mat[3][3]
	)

Definition at line 397 of file curve_deform.c.

References calc_curve_deform(), copy_v3_v3(), CurveDeform::curvespace, CurveDeform::dmax, CurveDeform::dmin, init_curve_deform(), mul_m3_m3m3(), mul_m4_v3(), CurveDeform::no_rot_axis, OB_CURVES_LEGACY, CurveDeform::objectspace, CurveDeform::objectspace3, quat_to_mat3(), Object::trackflag, Object::type, and unit_m3().

BKE_curve_deform_coords()

void BKE_curve_deform_coords	(	const Object *	ob_curve,
		const Object *	ob_target,
		float(*)	vert_coords[3],
		const int	vert_coords_len,
		const MDeformVert *	dvert,
		const int	defgrp_index,
		const short	flag,
		const short	defaxis
	)

Definition at line 364 of file curve_deform.c.

References curve_deform_coords_impl(), and NULL.

BKE_curve_deform_coords_with_editmesh()

void BKE_curve_deform_coords_with_editmesh	(	const Object *	ob_curve,
		const Object *	ob_target,
		float(*)	vert_coords[3],
		const int	vert_coords_len,
		const int	defgrp_index,
		const short	flag,
		const short	defaxis,
		BMEditMesh *	em_target
	)

Definition at line 377 of file curve_deform.c.

References curve_deform_coords_impl(), and NULL.

calc_curve_deform()

static bool calc_curve_deform ( const Object *  ob_curve, float  co[3], const short  axis, const CurveDeform *  cd, float  r_quat[4]  )

static

For each point, rotate & translate to curve.

Parameters

co	local coord, result local too.
r_quat	returns quaternion for rotation, using CurveDeform.no_rot_axis axis is using another define.

Definition at line 61 of file curve_deform.c.

References add_v3_v3v3(), CurveCache::anim_path_accum_length, BKE_anim_path_get_length(), BKE_where_on_path(), copy_qt_qt(), copy_v3_v3(), CU_PATH_RADIUS, CU_STRETCH, Object_Runtime::curve_cache, Object::data, CurveDeform::dmax, CurveDeform::dmin, ELEM, Curve::flag, LIKELY, mul_qt_qtqt(), mul_qt_v3(), mul_v3_fl(), CurveDeform::no_rot_axis, normalize_qt(), normalize_v3(), NULL, quat_apply_track(), rotation_between_vecs_to_quat(), Object::runtime, and vec_apply_track().

Referenced by BKE_curve_deform_co(), and curve_deform_coords_impl().

curve_deform_coords_impl()

static void curve_deform_coords_impl ( const Object *  ob_curve, const Object *  ob_target, float(*)  vert_coords[3], const int  vert_coords_len, const MDeformVert *  dvert, const int  defgrp_index, const short  flag, const short  defaxis, BMEditMesh *  em_target  )

static

Definition at line 196 of file curve_deform.c.

References Freestyle::a, BMEditMesh::bm, BM_ELEM_CD_GET_VOID_P, BM_ITER_MESH_INDEX, BM_VERTS_OF_MESH, calc_curve_deform(), CD_MDEFORMVERT, CU_DEFORM_BOUNDS_OFF, CurveDeform::curvespace, CustomData_get_offset(), Object::data, DEFORM_OP, DEFORM_OP_CLAMPED, DEFORM_OP_MINMAX, CurveDeform::dmax, CurveDeform::dmin, Curve::flag, init_curve_deform(), INIT_MINMAX, minmax_v3v3_v3(), MOD_CURVE_INVERT_VGROUP, mul_m4_v3(), NULL, OB_CURVES_LEGACY, CurveDeform::objectspace, Object::type, v, and BMesh::vdata.

Referenced by BKE_curve_deform_coords(), and BKE_curve_deform_coords_with_editmesh().

init_curve_deform()

static void init_curve_deform ( const Object *  ob_curve, const Object *  ob_target, CurveDeform *  cd  )

static

Definition at line 44 of file curve_deform.c.

References copy_m3_m4(), CurveDeform::curvespace, invert_m4_m4(), mul_m4_m4m4(), CurveDeform::no_rot_axis, CurveDeform::objectspace, CurveDeform::objectspace3, and Object::obmat.

Referenced by BKE_curve_deform_co(), and curve_deform_coords_impl().