Manipulator: Add b-bone spline editing

This needs some improvements since
matching handles *exactly* is a bit involved.
This commit is contained in:
Campbell Barton 2017-08-15 17:24:38 +10:00
parent ecfc0370e0
commit d3ba86de07
4 changed files with 223 additions and 0 deletions

View File

@ -59,6 +59,7 @@ set(SRC
view3d_walk.c
view3d_header.c
view3d_iterators.c
view3d_manipulator_armature.c
view3d_manipulator_camera.c
view3d_manipulator_empty.c
view3d_manipulator_forcefield.c

View File

@ -742,6 +742,7 @@ static void view3d_widgets(void)
WM_manipulatorgrouptype_append_and_link(mmap_type, VIEW3D_WGT_camera);
WM_manipulatorgrouptype_append_and_link(mmap_type, VIEW3D_WGT_camera_view);
WM_manipulatorgrouptype_append_and_link(mmap_type, VIEW3D_WGT_empty_image);
WM_manipulatorgrouptype_append_and_link(mmap_type, VIEW3D_WGT_armature_spline);
}

View File

@ -326,6 +326,7 @@ void VIEW3D_WGT_camera(struct wmManipulatorGroupType *wgt);
void VIEW3D_WGT_camera_view(struct wmManipulatorGroupType *wgt);
void VIEW3D_WGT_force_field(struct wmManipulatorGroupType *wgt);
void VIEW3D_WGT_empty_image(struct wmManipulatorGroupType *wgt);
void VIEW3D_WGT_armature_spline(struct wmManipulatorGroupType *wgt);
/* draw_volume.c */
void draw_smoke_volume(struct SmokeDomainSettings *sds, struct Object *ob,

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@ -0,0 +1,220 @@
/*
* ***** 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.
*
* ***** END GPL LICENSE BLOCK *****
*/
/** \file blender/editors/space_view3d/view3d_manipulator_armature.c
* \ingroup spview3d
*/
#include "BLI_blenlib.h"
#include "BLI_math.h"
#include "BLI_utildefines.h"
#include "BKE_armature.h"
#include "BKE_action.h"
#include "BKE_context.h"
#include "BKE_object.h"
#include "DNA_object_types.h"
#include "DNA_armature_types.h"
#include "ED_armature.h"
#include "ED_screen.h"
#include "ED_manipulator_library.h"
#include "UI_resources.h"
#include "MEM_guardedalloc.h"
#include "RNA_access.h"
#include "WM_api.h"
#include "WM_types.h"
#include "view3d_intern.h" /* own include */
/* -------------------------------------------------------------------- */
/** \name Armature Spline Manipulator
*
* \{ */
/*
* TODO(campbell): Current conversion is a approximation (usable not correct),
* we'll need to take the next/previous bones into account to get the tangent directions.
* First last matrices from 'b_bone_spline_setup' are close but also not quite accurate
* since they're not at either end-points on the curve.
*
* Likely we'll need a function especially to get the first/last orientations.
*/
#define BBONE_SCALE_Y 3.0f
struct BoneSplineHandle {
wmManipulator *manipulator;
bPoseChannel *pchan;
/* We could remove, keep since at the moment for checking the conversion. */
float co[3];
int index;
};
struct BoneSplineWidgetGroup {
struct BoneSplineHandle handles[2];
};
static void manipulator_bbone_offset_get(
const wmManipulator *UNUSED(mpr), wmManipulatorProperty *mpr_prop,
void *value_p)
{
struct BoneSplineHandle *bh = mpr_prop->custom_func.user_data;
bPoseChannel *pchan = bh->pchan;
float *value = value_p;
BLI_assert(mpr_prop->type->array_length == 3);
if (bh->index == 0) {
bh->co[1] = pchan->bone->ease1 / BBONE_SCALE_Y;
bh->co[0] = pchan->curveInX;
bh->co[2] = pchan->curveInY;
}
else {
bh->co[1] = -pchan->bone->ease2 / BBONE_SCALE_Y;
bh->co[0] = pchan->curveOutX;
bh->co[2] = pchan->curveOutY;
}
copy_v3_v3(value, bh->co);
}
static void manipulator_bbone_offset_set(
const wmManipulator *UNUSED(mpr), wmManipulatorProperty *mpr_prop,
const void *value_p)
{
struct BoneSplineHandle *bh = mpr_prop->custom_func.user_data;
bPoseChannel *pchan = bh->pchan;
const float *value = value_p;
BLI_assert(mpr_prop->type->array_length == 3);
copy_v3_v3(bh->co, value);
if (bh->index == 0) {
pchan->bone->ease1 = max_ff(0.0f, bh->co[1] * BBONE_SCALE_Y);
pchan->bone->curveInX = bh->co[0];
pchan->bone->curveInY = bh->co[2];
}
else {
pchan->bone->ease2 = max_ff(0.0f, -bh->co[1] * BBONE_SCALE_Y);
pchan->bone->curveOutX = bh->co[0];
pchan->bone->curveOutY = bh->co[2];
}
}
static bool WIDGETGROUP_armature_spline_poll(const bContext *C, wmManipulatorGroupType *UNUSED(wgt))
{
Object *ob = BKE_object_pose_armature_get(CTX_data_active_object(C));
if (ob != NULL) {
const bArmature *arm = ob->data;
if (arm->drawtype == ARM_B_BONE) {
if (arm->act_bone && arm->act_bone->segments > 1) {
return true;
}
}
}
return false;
}
static void WIDGETGROUP_armature_spline_setup(const bContext *C, wmManipulatorGroup *mgroup)
{
Object *ob = BKE_object_pose_armature_get(CTX_data_active_object(C));
bPoseChannel *pchan = BKE_pose_channel_active(ob);
const wmManipulatorType *wt_grab = WM_manipulatortype_find("MANIPULATOR_WT_grab_3d", true);
struct BoneSplineWidgetGroup *bspline_group = MEM_callocN(sizeof(struct BoneSplineWidgetGroup), __func__);
mgroup->customdata = bspline_group;
/* Handles */
for (int i = 0; i < ARRAY_SIZE(bspline_group->handles); i++) {
wmManipulator *mpr;
mpr = bspline_group->handles[i].manipulator = WM_manipulator_new_ptr(wt_grab, mgroup, NULL);
RNA_enum_set(mpr->ptr, "draw_style", ED_MANIPULATOR_GRAB_STYLE_RING_2D);
RNA_enum_set(mpr->ptr, "draw_options",
ED_MANIPULATOR_GRAB_DRAW_FLAG_FILL | ED_MANIPULATOR_GRAB_DRAW_FLAG_ALIGN_VIEW);
WM_manipulator_set_flag(mpr, WM_MANIPULATOR_DRAW_VALUE, true);
UI_GetThemeColor3fv(TH_MANIPULATOR_PRIMARY, mpr->color);
UI_GetThemeColor3fv(TH_MANIPULATOR_HI, mpr->color_hi);
mpr->scale_basis = 0.06f;
if (i == 0) {
copy_v3_v3(mpr->matrix_basis[3], pchan->loc);
}
}
}
static void WIDGETGROUP_armature_spline_refresh(const bContext *C, wmManipulatorGroup *mgroup)
{
Object *ob = BKE_object_pose_armature_get(CTX_data_active_object(C));
if (!mgroup->customdata)
return;
struct BoneSplineWidgetGroup *bspline_group = mgroup->customdata;
bPoseChannel *pchan = BKE_pose_channel_active(ob);
/* Handles */
for (int i = 0; i < ARRAY_SIZE(bspline_group->handles); i++) {
wmManipulator *mpr = bspline_group->handles[i].manipulator;
bspline_group->handles[i].pchan = pchan;
bspline_group->handles[i].index = i;
float mat[4][4];
mul_m4_m4m4(mat, ob->obmat, (i == 0) ? pchan->disp_mat : pchan->disp_tail_mat);
copy_m4_m4(mpr->matrix_space, mat);
/* need to set property here for undo. TODO would prefer to do this in _init */
WM_manipulator_target_property_def_func(
mpr, "offset",
&(const struct wmManipulatorPropertyFnParams) {
.value_get_fn = manipulator_bbone_offset_get,
.value_set_fn = manipulator_bbone_offset_set,
.range_get_fn = NULL,
.user_data = &bspline_group->handles[i],
});
}
}
void VIEW3D_WGT_armature_spline(wmManipulatorGroupType *wgt)
{
wgt->name = "Armature Spline Widgets";
wgt->idname = "VIEW3D_WGT_armature_spline";
wgt->flag = (WM_MANIPULATORGROUPTYPE_PERSISTENT |
WM_MANIPULATORGROUPTYPE_3D);
wgt->poll = WIDGETGROUP_armature_spline_poll;
wgt->setup = WIDGETGROUP_armature_spline_setup;
wgt->refresh = WIDGETGROUP_armature_spline_refresh;
}
/** \} */