/* For the calculation of the effects of an Action at the given frame on an object
* This is currently only used for the Action Constraint
*/
void what_does_obaction(Object *ob, Object *workob, bPose *pose, bAction *act, char groupname[], float cframe)
{
bActionGroup *agrp = BKE_action_group_find_name(act, groupname);
/* clear workob */
BKE_object_workob_clear(workob);
/* init workob */
copy_m4_m4(workob->obmat, ob->obmat);
copy_m4_m4(workob->parentinv, ob->parentinv);
copy_m4_m4(workob->constinv, ob->constinv);
workob->parent = ob->parent;
workob->rotmode = ob->rotmode;
workob->trackflag = ob->trackflag;
workob->upflag = ob->upflag;
workob->partype = ob->partype;
workob->par1 = ob->par1;
workob->par2 = ob->par2;
workob->par3 = ob->par3;
workob->constraints.first = ob->constraints.first;
workob->constraints.last = ob->constraints.last;
workob->pose = pose; /* need to set pose too, since this is used for both types of Action Constraint */
BLI_strncpy(workob->parsubstr, ob->parsubstr, sizeof(workob->parsubstr));
BLI_strncpy(workob->id.name, "OB<ConstrWorkOb>", sizeof(workob->id.name)); /* we don't use real object name, otherwise RNA screws with the real thing */
/* if we're given a group to use, it's likely to be more efficient (though a bit more dangerous) */
if (agrp) {
/* specifically evaluate this group only */
PointerRNA id_ptr;
/* get RNA-pointer for the workob's ID */
RNA_id_pointer_create(&workob->id, &id_ptr);
/* execute action for this group only */
animsys_evaluate_action_group(&id_ptr, act, agrp, NULL, cframe);
}
else {
AnimData adt = {NULL};
/* init animdata, and attach to workob */
workob->adt = &adt;
adt.recalc = ADT_RECALC_ANIM;
adt.action = act;
/* execute effects of Action on to workob (or it's PoseChannels) */
BKE_animsys_evaluate_animdata(NULL, &workob->id, &adt, cframe, ADT_RECALC_ANIM);
}
}
/* Draw the given motion path for an Object or a Bone
* - assumes that the viewport has already been initialized properly
* i.e. draw_motion_paths_init() has been called
*/
void draw_motion_path_instance(Scene *scene,
Object *ob, bPoseChannel *pchan, bAnimVizSettings *avs, bMotionPath *mpath)
{
//RegionView3D *rv3d = ar->regiondata;
bMotionPathVert *mpv, *mpv_start;
int i, stepsize = avs->path_step;
int sfra, efra, sind, len;
/* get frame ranges */
if (avs->path_type == MOTIONPATH_TYPE_ACFRA) {
/* With "Around Current", we only choose frames from around
* the current frame to draw.
*/
sfra = CFRA - avs->path_bc;
efra = CFRA + avs->path_ac;
}
else {
/* Use the current display range */
sfra = avs->path_sf;
efra = avs->path_ef;
}
/* no matter what, we can only show what is in the cache and no more
* - abort if whole range is past ends of path
* - otherwise clamp endpoints to extents of path
*/
if (sfra < mpath->start_frame) {
/* start clamp */
sfra = mpath->start_frame;
}
if (efra > mpath->end_frame) {
/* end clamp */
efra = mpath->end_frame;
}
if ((sfra > mpath->end_frame) || (efra < mpath->start_frame)) {
/* whole path is out of bounds */
return;
}
len = efra - sfra;
if ((len <= 0) || (mpath->points == NULL)) {
return;
}
/* get pointers to parts of path */
sind = sfra - mpath->start_frame;
mpv_start = (mpath->points + sind);
/* draw curve-line of path */
glShadeModel(GL_SMOOTH);
glBegin(GL_LINE_STRIP);
for (i = 0, mpv = mpv_start; i < len; i++, mpv++) {
short sel = (pchan) ? (pchan->bone->flag & BONE_SELECTED) : (ob->flag & SELECT);
float intensity; /* how faint */
int frame = sfra + i;
int blend_base = (abs(frame - CFRA) == 1) ? TH_CFRAME : TH_BACK; /* "bleed" cframe color to ease color blending */
/* set color
* - more intense for active/selected bones, less intense for unselected bones
* - black for before current frame, green for current frame, blue for after current frame
* - intensity decreases as distance from current frame increases
*/
#define SET_INTENSITY(A, B, C, min, max) (((1.0f - ((C - B) / (C - A))) * (max - min)) + min)
if (frame < CFRA) {
/* black - before cfra */
if (sel) {
/* intensity = 0.5f; */
intensity = SET_INTENSITY(sfra, i, CFRA, 0.25f, 0.75f);
}
else {
/* intensity = 0.8f; */
intensity = SET_INTENSITY(sfra, i, CFRA, 0.68f, 0.92f);
}
UI_ThemeColorBlend(TH_WIRE, blend_base, intensity);
}
else if (frame > CFRA) {
/* blue - after cfra */
if (sel) {
/* intensity = 0.5f; */
intensity = SET_INTENSITY(CFRA, i, efra, 0.25f, 0.75f);
}
else {
/* intensity = 0.8f; */
intensity = SET_INTENSITY(CFRA, i, efra, 0.68f, 0.92f);
}
UI_ThemeColorBlend(TH_BONE_POSE, blend_base, intensity);
}
else {
/* green - on cfra */
if (sel) {
intensity = 0.5f;
}
else {
intensity = 0.99f;
}
UI_ThemeColorBlendShade(TH_CFRAME, TH_BACK, intensity, 10);
}
#undef SET_INTENSITY
/* draw a vertex with this color */
glVertex3fv(mpv->co);
}
glEnd();
glShadeModel(GL_FLAT);
glPointSize(1.0);
/* draw little black point at each frame
* NOTE: this is not really visible/noticeable
*/
glBegin(GL_POINTS);
for (i = 0, mpv = mpv_start; i < len; i++, mpv++)
glVertex3fv(mpv->co);
glEnd();
/* Draw little white dots at each framestep value */
UI_ThemeColor(TH_TEXT_HI);
glBegin(GL_POINTS);
for (i = 0, mpv = mpv_start; i < len; i += stepsize, mpv += stepsize)
glVertex3fv(mpv->co);
glEnd();
/* Draw big green dot where the current frame is
* NOTE: this is only done when keyframes are shown, since this adds similar types of clutter
*/
if ((avs->path_viewflag & MOTIONPATH_VIEW_KFRAS) &&
(sfra < CFRA) && (CFRA <= efra))
{
UI_ThemeColor(TH_CFRAME);
glPointSize(6.0f);
glBegin(GL_POINTS);
mpv = mpv_start + (CFRA - sfra);
glVertex3fv(mpv->co);
glEnd();
UI_ThemeColor(TH_TEXT_HI);
}
/* XXX, this isn't up to date but probably should be kept so. */
invert_m4_m4(ob->imat, ob->obmat);
/* Draw frame numbers at each framestep value */
if (avs->path_viewflag & MOTIONPATH_VIEW_FNUMS) {
unsigned char col[4];
UI_GetThemeColor3ubv(TH_TEXT_HI, col);
col[3] = 255;
for (i = 0, mpv = mpv_start; i < len; i += stepsize, mpv += stepsize) {
int frame = sfra + i;
char numstr[32];
size_t numstr_len;
float co[3];
/* only draw framenum if several consecutive highlighted points don't occur on same point */
if (i == 0) {
numstr_len = sprintf(numstr, " %d", frame);
mul_v3_m4v3(co, ob->imat, mpv->co);
view3d_cached_text_draw_add(co, numstr, numstr_len,
0, V3D_CACHE_TEXT_WORLDSPACE | V3D_CACHE_TEXT_ASCII, col);
}
else if ((i >= stepsize) && (i < len - stepsize)) {
bMotionPathVert *mpvP = (mpv - stepsize);
bMotionPathVert *mpvN = (mpv + stepsize);
if ((equals_v3v3(mpv->co, mpvP->co) == 0) || (equals_v3v3(mpv->co, mpvN->co) == 0)) {
numstr_len = sprintf(numstr, " %d", frame);
mul_v3_m4v3(co, ob->imat, mpv->co);
view3d_cached_text_draw_add(co, numstr, numstr_len,
0, V3D_CACHE_TEXT_WORLDSPACE | V3D_CACHE_TEXT_ASCII, col);
}
}
}
}
/* Keyframes - dots and numbers */
if (avs->path_viewflag & MOTIONPATH_VIEW_KFRAS) {
unsigned char col[4];
AnimData *adt = BKE_animdata_from_id(&ob->id);
DLRBT_Tree keys;
/* build list of all keyframes in active action for object or pchan */
BLI_dlrbTree_init(&keys);
if (adt) {
/* it is assumed that keyframes for bones are all grouped in a single group
* unless an option is set to always use the whole action
*/
if ((pchan) && (avs->path_viewflag & MOTIONPATH_VIEW_KFACT) == 0) {
bActionGroup *agrp = BKE_action_group_find_name(adt->action, pchan->name);
if (agrp) {
agroup_to_keylist(adt, agrp, &keys, NULL);
BLI_dlrbTree_linkedlist_sync(&keys);
}
}
else {
action_to_keylist(adt, adt->action, &keys, NULL);
BLI_dlrbTree_linkedlist_sync(&keys);
}
}
/* Draw slightly-larger yellow dots at each keyframe */
UI_GetThemeColor3ubv(TH_VERTEX_SELECT, col);
col[3] = 255;
glPointSize(4.0f);
glColor3ubv(col);
glBegin(GL_POINTS);
for (i = 0, mpv = mpv_start; i < len; i++, mpv++) {
int frame = sfra + i;
float mframe = (float)(frame);
if (BLI_dlrbTree_search_exact(&keys, compare_ak_cfraPtr, &mframe))
glVertex3fv(mpv->co);
}
glEnd();
/* Draw frame numbers of keyframes */
if (avs->path_viewflag & MOTIONPATH_VIEW_KFNOS) {
float co[3];
for (i = 0, mpv = mpv_start; i < len; i++, mpv++) {
float mframe = (float)(sfra + i);
if (BLI_dlrbTree_search_exact(&keys, compare_ak_cfraPtr, &mframe)) {
char numstr[32];
size_t numstr_len;
numstr_len = sprintf(numstr, " %d", (sfra + i));
mul_v3_m4v3(co, ob->imat, mpv->co);
view3d_cached_text_draw_add(co, numstr, numstr_len,
0, V3D_CACHE_TEXT_WORLDSPACE | V3D_CACHE_TEXT_ASCII, col);
}
}
}
BLI_dlrbTree_free(&keys);
}
}
/* For the calculation of the effects of an Action at the given frame on an object
* This is currently only used for the Action Constraint
*/
void what_does_obaction(Object *ob, Object *workob, bPose *pose, bAction *act, char groupname[], float cframe)
{
bActionGroup *agrp = BKE_action_group_find_name(act, groupname);
/* clear workob */
BKE_object_workob_clear(workob);
/* init workob */
copy_m4_m4(workob->obmat, ob->obmat);
copy_m4_m4(workob->parentinv, ob->parentinv);
copy_m4_m4(workob->constinv, ob->constinv);
workob->parent = ob->parent;
workob->rotmode = ob->rotmode;
workob->trackflag = ob->trackflag;
workob->upflag = ob->upflag;
workob->partype = ob->partype;
workob->par1 = ob->par1;
workob->par2 = ob->par2;
workob->par3 = ob->par3;
workob->constraints.first = ob->constraints.first;
workob->constraints.last = ob->constraints.last;
workob->pose = pose; /* need to set pose too, since this is used for both types of Action Constraint */
if (pose) {
/* This function is most likely to be used with a temporary pose with a single bone in there.
* For such cases it makes no sense to create hash since it'll only waste CPU ticks on memory
* allocation and also will make lookup slower.
*/
if (pose->chanbase.first != pose->chanbase.last) {
BKE_pose_channels_hash_make(pose);
}
if (pose->flag & POSE_CONSTRAINTS_NEED_UPDATE_FLAGS) {
BKE_pose_update_constraint_flags(pose);
}
}
BLI_strncpy(workob->parsubstr, ob->parsubstr, sizeof(workob->parsubstr));
BLI_strncpy(workob->id.name, "OB<ConstrWorkOb>", sizeof(workob->id.name)); /* we don't use real object name, otherwise RNA screws with the real thing */
/* if we're given a group to use, it's likely to be more efficient (though a bit more dangerous) */
if (agrp) {
/* specifically evaluate this group only */
PointerRNA id_ptr;
/* get RNA-pointer for the workob's ID */
RNA_id_pointer_create(&workob->id, &id_ptr);
/* execute action for this group only */
animsys_evaluate_action_group(&id_ptr, act, agrp, NULL, cframe);
}
else {
AnimData adt = {NULL};
/* init animdata, and attach to workob */
workob->adt = &adt;
adt.recalc = ADT_RECALC_ANIM;
adt.action = act;
/* execute effects of Action on to workob (or it's PoseChannels) */
BKE_animsys_evaluate_animdata(NULL, &workob->id, &adt, cframe, ADT_RECALC_ANIM);
}
}
