== Auto-IK ==
-- Peach request (from wiki feature request list) -- When translating a bone using Auto-IK, you can now use the ScrollWheel on the Mouse or the Page Up/Down keys to adjust the chain length. Notes: * Up decreases the length, while Down increases it. * The previously used chain-length is stored per scene * Currently, it might be too sensitive. Also, it would help to have some kind of indication of the current chain-length somewhere... * The chain length specified this way determines the MAXIMUM chain length possible for all chains (if 0, then the default chain-length is used). Chains are clamped to have a chain length which does not exceed the default chain length. This restriction may be removed following further feedback...
This commit is contained in:
Joshua Leung
parent
b71d55b055
commit
faf638238d
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@ -230,7 +230,7 @@ typedef struct TransInfo {
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// for manipulator exceptions, like scaling using center point, drawing help lines
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#define T_USES_MANIPULATOR (1 << 7)
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/* restrictions flags */
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/* restrictions flags */
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#define T_ALL_RESTRICTIONS ((1 << 8)|(1 << 9)|(1 << 10))
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#define T_NO_CONSTRAINT (1 << 8)
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#define T_NULL_ONE (1 << 9)
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@ -239,14 +239,17 @@ typedef struct TransInfo {
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#define T_PROP_EDIT (1 << 11)
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#define T_PROP_CONNECTED (1 << 12)
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/* if MMB is pressed or not */
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/* if MMB is pressed or not */
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#define T_MMB_PRESSED (1 << 13)
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#define T_V3D_ALIGN (1 << 14)
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#define T_2D_EDIT (1 << 15) /* for 2d views like uv or ipo */
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/* for 2d views like uv or ipo */
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#define T_2D_EDIT (1 << 15)
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#define T_CLIP_UV (1 << 16)
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#define T_FREE_CUSTOMDATA (1 << 17)
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/* auto-ik is on */
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#define T_AUTOIK (1 << 18)
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/* ******************************************************************************** */
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@ -375,6 +378,8 @@ void sort_trans_data_dist(TransInfo *t);
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void add_tdi_poin(float *poin, float *old, float delta);
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void special_aftertrans_update(TransInfo *t);
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void transform_autoik_update(TransInfo *t, short mode);
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/* auto-keying stuff used by special_aftertrans_update */
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void autokeyframe_ob_cb_func(struct Object *ob, int tmode);
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void autokeyframe_pose_cb_func(struct Object *ob, int tmode, short targetless_ik);
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@ -458,3 +463,4 @@ char handleNumInput(NumInput *n, unsigned short event);
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#endif
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@ -126,7 +126,8 @@ typedef struct bKinematicConstraint {
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Object *tar;
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short iterations; /* Maximum number of iterations to try */
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short flag; /* Like CONSTRAINT_IK_TIP */
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int rootbone; /* index to rootbone, if zero go all the way to mother bone */
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short rootbone; /* index to rootbone, if zero go all the way to mother bone */
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short max_rootbone; /* for auto-ik, maximum length of chain */
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char subtarget[32]; /* String to specify sub-object target */
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Object *poletar; /* Pole vector target */
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@ -363,7 +363,8 @@ typedef struct ToolSettings {
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short uvcalc_mapalign;
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short uvcalc_flag;
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short pad2;
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/* Auto-IK */
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short autoik_chainlen;
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/* Image Paint (8 byte aligned please!) */
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struct ImagePaintSettings imapaint;
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@ -815,7 +815,10 @@ static void transformEvent(unsigned short event, short val) {
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break;
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case PAGEUPKEY:
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case WHEELDOWNMOUSE:
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if(Trans.flag & T_PROP_EDIT) {
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if (Trans.flag & T_AUTOIK) {
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transform_autoik_update(&Trans, 1);
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}
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else if(Trans.flag & T_PROP_EDIT) {
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Trans.propsize*= 1.1f;
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calculatePropRatio(&Trans);
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}
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@ -831,7 +834,10 @@ static void transformEvent(unsigned short event, short val) {
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break;
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case PAGEDOWNKEY:
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case WHEELUPMOUSE:
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if(Trans.flag & T_PROP_EDIT) {
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if (Trans.flag & T_AUTOIK) {
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transform_autoik_update(&Trans, -1);
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}
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else if (Trans.flag & T_PROP_EDIT) {
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Trans.propsize*= 0.90909090f;
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calculatePropRatio(&Trans);
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}
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@ -4094,3 +4100,4 @@ void BIF_TransformSetUndo(char *str)
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}
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@ -695,6 +695,62 @@ static void set_pose_transflags(TransInfo *t, Object *ob)
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t->mode= TFM_ROTATION;
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}
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/* -------- Auto-IK ---------- */
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/* adjust pose-channel's auto-ik chainlen */
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static void pchan_autoik_adjust (bPoseChannel *pchan, short chainlen)
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{
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bConstraint *con;
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/* don't bother to search if no valid constraints */
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if ((pchan->constflag & (PCHAN_HAS_IK|PCHAN_HAS_TARGET))==0)
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return;
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/* check if pchan has ik-constraint */
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for (con= pchan->constraints.first; con; con= con->next) {
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if (con->type == CONSTRAINT_TYPE_KINEMATIC) {
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bKinematicConstraint *data= con->data;
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/* only accept if a temporary one (for auto-ik) */
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if (data->flag & CONSTRAINT_IK_TEMP) {
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/* chainlen is new chainlen, but is limited by maximum chainlen */
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if ((chainlen==0) || (chainlen > data->max_rootbone))
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data->rootbone= data->max_rootbone;
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else
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data->rootbone= chainlen;
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printf("chainlen = %d, max = %d, new = %d\n", chainlen, data->max_rootbone, data->rootbone);
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}
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}
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}
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}
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/* change the chain-length of auto-ik */
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void transform_autoik_update (TransInfo *t, short mode)
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{
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short *chainlen= &G.scene->toolsettings->autoik_chainlen;
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bPoseChannel *pchan;
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/* mode determines what change to apply to chainlen */
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if (mode == 1) {
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/* mode=1 is from WHEELMOUSEDOWN... increases len */
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(*chainlen)++;
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}
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else if (mode == -1) {
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/* mode==-1 is from WHEELMOUSEUP... decreases len */
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if (*chainlen > 0) (*chainlen)--;
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}
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/* sanity checks (don't assume t->poseobj is set, or that it is an armature) */
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if (ELEM(NULL, t->poseobj, t->poseobj->pose))
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return;
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/* apply to all pose-channels */
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for (pchan=t->poseobj->pose->chanbase.first; pchan; pchan=pchan->next) {
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pchan_autoik_adjust(pchan, *chainlen);
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}
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}
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/* frees temporal IKs */
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static void pose_grab_with_ik_clear(Object *ob)
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{
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@ -722,19 +778,19 @@ static void pose_grab_with_ik_clear(Object *ob)
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}
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}
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/* adds the IK to pchan */
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static void pose_grab_with_ik_add(bPoseChannel *pchan)
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/* adds the IK to pchan - returns if added */
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static short pose_grab_with_ik_add(bPoseChannel *pchan)
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{
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bKinematicConstraint *data;
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bConstraint *con;
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if (pchan == NULL) { // Sanity check
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return;
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}
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/* Sanity check */
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if (pchan == NULL)
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return 0;
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/* rule: not if there's already an IK on this channel */
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for (con= pchan->constraints.first; con; con= con->next)
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if(con->type==CONSTRAINT_TYPE_KINEMATIC)
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if (con->type==CONSTRAINT_TYPE_KINEMATIC)
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break;
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if (con) {
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@ -742,7 +798,7 @@ static void pose_grab_with_ik_add(bPoseChannel *pchan)
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data= has_targetless_ik(pchan);
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if (data)
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data->flag |= CONSTRAINT_IK_AUTO;
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return;
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return 0;
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}
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con = add_new_constraint(CONSTRAINT_TYPE_KINEMATIC);
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@ -764,73 +820,79 @@ static void pose_grab_with_ik_add(bPoseChannel *pchan)
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data->rootbone++;
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pchan= pchan->parent;
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}
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/* make a copy of maximum chain-length */
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data->max_rootbone= data->rootbone;
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return 1;
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}
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/* bone is a canditate to get IK, but we don't do it if it has children connected */
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static void pose_grab_with_ik_children(bPose *pose, Bone *bone)
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static short pose_grab_with_ik_children(bPose *pose, Bone *bone)
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{
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Bone *bonec;
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int wentdeeper= 0;
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short wentdeeper=0, added=0;
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/* go deeper if children & children are connected */
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for(bonec= bone->childbase.first; bonec; bonec= bonec->next) {
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if(bonec->flag & BONE_CONNECTED) {
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for (bonec= bone->childbase.first; bonec; bonec= bonec->next) {
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if (bonec->flag & BONE_CONNECTED) {
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wentdeeper= 1;
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pose_grab_with_ik_children(pose, bonec);
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added+= pose_grab_with_ik_children(pose, bonec);
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}
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}
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if(wentdeeper==0) {
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if (wentdeeper==0) {
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bPoseChannel *pchan= get_pose_channel(pose, bone->name);
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if(pchan)
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pose_grab_with_ik_add(pchan);
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if (pchan)
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added+= pose_grab_with_ik_add(pchan);
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}
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return added;
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}
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/* main call which adds temporal IK chains */
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static void pose_grab_with_ik(Object *ob)
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static short pose_grab_with_ik(Object *ob)
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{
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bArmature *arm;
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bPoseChannel *pchan, *pchansel= NULL;
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Bone *bonec;
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if(ob==NULL || ob->pose==NULL || (ob->flag & OB_POSEMODE)==0)
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return;
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if (ob==NULL || ob->pose==NULL || (ob->flag & OB_POSEMODE)==0)
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return 0;
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arm = ob->data;
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/* rule: only one Bone */
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for(pchan= ob->pose->chanbase.first; pchan; pchan= pchan->next) {
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if(pchan->bone->layer & arm->layer) {
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if(pchan->bone->flag & BONE_SELECTED) {
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if(pchansel)
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for (pchan= ob->pose->chanbase.first; pchan; pchan= pchan->next) {
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if (pchan->bone->layer & arm->layer) {
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if (pchan->bone->flag & BONE_SELECTED) {
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if (pchansel)
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break;
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pchansel= pchan;
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}
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}
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}
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if(pchan || pchansel==NULL) return;
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if (pchan || pchansel==NULL) return 0;
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/* rule: no IK for solitary (unconnected) bone */
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for(bonec=pchansel->bone->childbase.first; bonec; bonec=bonec->next) {
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if(bonec->flag & BONE_CONNECTED) {
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for (bonec=pchansel->bone->childbase.first; bonec; bonec=bonec->next) {
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if (bonec->flag & BONE_CONNECTED) {
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break;
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}
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}
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if ((pchansel->bone->flag & BONE_CONNECTED)==0 && (bonec == NULL)) return;
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if ((pchansel->bone->flag & BONE_CONNECTED)==0 && (bonec == NULL)) return 0;
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/* rule: if selected Bone is not a root bone, it gets a temporal IK */
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if(pchansel->parent) {
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if (pchansel->parent) {
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/* only adds if there's no IK yet */
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pose_grab_with_ik_add(pchansel);
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return pose_grab_with_ik_add(pchansel);
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}
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else {
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/* rule: go over the children and add IK to the tips */
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pose_grab_with_ik_children(ob->pose, pchansel->bone);
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return pose_grab_with_ik_children(ob->pose, pchansel->bone);
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}
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}
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/* only called with pose mode active object now */
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static void createTransPose(TransInfo *t, Object *ob)
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{
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@ -838,6 +900,7 @@ static void createTransPose(TransInfo *t, Object *ob)
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bPoseChannel *pchan;
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TransData *td;
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TransDataExtension *tdx;
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short ik_on= 0;
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int i;
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t->total= 0;
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@ -855,8 +918,10 @@ static void createTransPose(TransInfo *t, Object *ob)
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if (!(ob->lay & G.vd->lay)) return;
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/* do we need to add temporal IK chains? */
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if((arm->flag & ARM_AUTO_IK) && t->mode==TFM_TRANSLATION)
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pose_grab_with_ik(ob);
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if ((arm->flag & ARM_AUTO_IK) && t->mode==TFM_TRANSLATION) {
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ik_on= pose_grab_with_ik(ob);
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if (ik_on) t->flag |= T_AUTOIK;
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}
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/* set flags and count total (warning, can change transform to rotate) */
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set_pose_transflags(t, ob);
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@ -890,6 +955,8 @@ static void createTransPose(TransInfo *t, Object *ob)
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if(td != (t->data+t->total)) printf("Bone selection count error\n");
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/* initialise initial auto=ik chainlen's? */
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if (ik_on) transform_autoik_update(t, 0);
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}
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/* ********************* armature ************** */
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@ -3539,3 +3606,4 @@ void createTransData(TransInfo *t)
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}
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