Differential D3101 Diff 10369 source/blender/editors/transform/transform_constraints.c

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source/blender/editors/transform/transform_constraints.c

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* Generic callback for constant spatial constraints applied to linear motion		* Generic callback for constant spatial constraints applied to linear motion
*		*
* The IN vector in projected into the constrained space and then further		* The IN vector in projected into the constrained space and then further
* projected along the view vector.		* projected along the view vector.
* (in perspective mode, the view vector is relative to the position on screen)		* (in perspective mode, the view vector is relative to the position on screen)
*		*
*/		*/

static void applyAxisConstraintVec(TransInfo t, TransData td, const float in[3], float out[3], float pvec[3])		static void applyAxisConstraintVec(
		TransInfo t, TransDataContainer UNUSED(tc), TransData *td, const float in[3], float out[3], float pvec[3])
{		{
copy_v3_v3(out, in);		copy_v3_v3(out, in);
if (!td && t->con.mode & CON_APPLY) {		if (!td && t->con.mode & CON_APPLY) {
mul_m3_v3(t->con.pmtx, out);		mul_m3_v3(t->con.pmtx, out);

// With snap, a projection is alright, no need to correct for view alignment		// With snap, a projection is alright, no need to correct for view alignment
if (!(!ELEM(t->tsnap.mode, SCE_SNAP_MODE_INCREMENT, SCE_SNAP_MODE_GRID) && activeSnap(t))) {		if (!(!ELEM(t->tsnap.mode, SCE_SNAP_MODE_INCREMENT, SCE_SNAP_MODE_GRID) && activeSnap(t))) {

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* At first, the following is applied to the first data in the array		* At first, the following is applied to the first data in the array
* The IN vector in projected into the constrained space and then further		* The IN vector in projected into the constrained space and then further
* projected along the view vector.		* projected along the view vector.
* (in perspective mode, the view vector is relative to the position on screen)		* (in perspective mode, the view vector is relative to the position on screen)
*		*
* Further down, that vector is mapped to each data's space.		* Further down, that vector is mapped to each data's space.
*/		*/

static void applyObjectConstraintVec(TransInfo t, TransData td, const float in[3], float out[3], float pvec[3])		static void applyObjectConstraintVec(
		TransInfo t, TransDataContainer tc, TransData *td, const float in[3], float out[3], float pvec[3])
{		{
copy_v3_v3(out, in);		copy_v3_v3(out, in);
if (t->con.mode & CON_APPLY) {		if (t->con.mode & CON_APPLY) {
if (!td) {		if (!td) {
mul_m3_v3(t->con.pmtx, out);		mul_m3_v3(t->con.pmtx, out);

const int dims = getConstraintSpaceDimension(t);		const int dims = getConstraintSpaceDimension(t);
if (dims == 2) {		if (dims == 2) {
Show All 31 Lines	else {
out[1] = in[i++];		out[1] = in[i++];
}		}
if (t->con.mode & CON_AXIS2) {		if (t->con.mode & CON_AXIS2) {
out[2] = in[i++];		out[2] = in[i++];
}		}

mul_m3_v3(td->axismtx, out);		mul_m3_v3(td->axismtx, out);
if (t->flag & T_EDIT) {		if (t->flag & T_EDIT) {
mul_m3_v3(t->obedit_mat, out);		mul_m3_v3(tc->obedit_mat, out);
}		}
}		}
}		}
}		}

/*		/*
* Generic callback for constant spatial constraints applied to resize motion		* Generic callback for constant spatial constraints applied to resize motion
*/		*/

static void applyAxisConstraintSize(TransInfo t, TransData td, float smat[3][3])		static void applyAxisConstraintSize(
		TransInfo t, TransDataContainer UNUSED(tc), TransData *td, float smat[3][3])
{		{
if (!td && t->con.mode & CON_APPLY) {		if (!td && t->con.mode & CON_APPLY) {
float tmat[3][3];		float tmat[3][3];

if (!(t->con.mode & CON_AXIS0)) {		if (!(t->con.mode & CON_AXIS0)) {
smat[0][0] = 1.0f;		smat[0][0] = 1.0f;
}		}
if (!(t->con.mode & CON_AXIS1)) {		if (!(t->con.mode & CON_AXIS1)) {
smat[1][1] = 1.0f;		smat[1][1] = 1.0f;
}		}
if (!(t->con.mode & CON_AXIS2)) {		if (!(t->con.mode & CON_AXIS2)) {
smat[2][2] = 1.0f;		smat[2][2] = 1.0f;
}		}

mul_m3_m3m3(tmat, smat, t->con.imtx);		mul_m3_m3m3(tmat, smat, t->con.imtx);
mul_m3_m3m3(smat, t->con.mtx, tmat);		mul_m3_m3m3(smat, t->con.mtx, tmat);
}		}
}		}

/*		/*
* Callback for object based spatial constraints applied to resize motion		* Callback for object based spatial constraints applied to resize motion
*/		*/

static void applyObjectConstraintSize(TransInfo t, TransData td, float smat[3][3])		static void applyObjectConstraintSize(
		TransInfo t, TransDataContainer tc, TransData *td, float smat[3][3])
{		{
if (td && t->con.mode & CON_APPLY) {		if (td && t->con.mode & CON_APPLY) {
float tmat[3][3];		float tmat[3][3];
float imat[3][3];		float imat[3][3];

invert_m3_m3(imat, td->axismtx);		invert_m3_m3(imat, td->axismtx);

if (!(t->con.mode & CON_AXIS0)) {		if (!(t->con.mode & CON_AXIS0)) {
smat[0][0] = 1.0f;		smat[0][0] = 1.0f;
}		}
if (!(t->con.mode & CON_AXIS1)) {		if (!(t->con.mode & CON_AXIS1)) {
smat[1][1] = 1.0f;		smat[1][1] = 1.0f;
}		}
if (!(t->con.mode & CON_AXIS2)) {		if (!(t->con.mode & CON_AXIS2)) {
smat[2][2] = 1.0f;		smat[2][2] = 1.0f;
}		}

mul_m3_m3m3(tmat, smat, imat);		mul_m3_m3m3(tmat, smat, imat);
if (t->flag & T_EDIT) {		if (t->flag & T_EDIT) {
mul_m3_m3m3(smat, t->obedit_mat, smat);		mul_m3_m3m3(smat, tc->obedit_mat, smat);
}		}
mul_m3_m3m3(smat, td->axismtx, tmat);		mul_m3_m3m3(smat, td->axismtx, tmat);
}		}
}		}

/*		/*
* Generic callback for constant spatial constraints applied to rotations		* Generic callback for constant spatial constraints applied to rotations
*		*
* The rotation axis is copied into VEC.		* The rotation axis is copied into VEC.
*		*
* In the case of single axis constraints, the rotation axis is directly the one constrained to.		* In the case of single axis constraints, the rotation axis is directly the one constrained to.
* For planar constraints (2 axis), the rotation axis is the normal of the plane.		* For planar constraints (2 axis), the rotation axis is the normal of the plane.
*		*
* The following only applies when CON_NOFLIP is not set.		* The following only applies when CON_NOFLIP is not set.
* The vector is then modified to always point away from the screen (in global space)		* The vector is then modified to always point away from the screen (in global space)
* This insures that the rotation is always logically following the mouse.		* This insures that the rotation is always logically following the mouse.
* (ie: not doing counterclockwise rotations when the mouse moves clockwise).		* (ie: not doing counterclockwise rotations when the mouse moves clockwise).
*/		*/

static void applyAxisConstraintRot(TransInfo t, TransData td, float vec[3], float *angle)		static void applyAxisConstraintRot(TransInfo t, TransDataContainer UNUSED(tc), TransData td, float vec[3], float angle)
{		{
if (!td && t->con.mode & CON_APPLY) {		if (!td && t->con.mode & CON_APPLY) {
int mode = t->con.mode & (CON_AXIS0 \| CON_AXIS1 \| CON_AXIS2);		int mode = t->con.mode & (CON_AXIS0 \| CON_AXIS1 \| CON_AXIS2);

switch (mode) {		switch (mode) {
case CON_AXIS0:		case CON_AXIS0:
case (CON_AXIS1 \| CON_AXIS2):		case (CON_AXIS1 \| CON_AXIS2):
copy_v3_v3(vec, t->con.mtx[0]);		copy_v3_v3(vec, t->con.mtx[0]);
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* For planar constraints (2 axis), the rotation axis is the normal of the plane.		* For planar constraints (2 axis), the rotation axis is the normal of the plane.
*		*
* The following only applies when CON_NOFLIP is not set.		* The following only applies when CON_NOFLIP is not set.
* The vector is then modified to always point away from the screen (in global space)		* The vector is then modified to always point away from the screen (in global space)
* This insures that the rotation is always logically following the mouse.		* This insures that the rotation is always logically following the mouse.
* (ie: not doing counterclockwise rotations when the mouse moves clockwise).		* (ie: not doing counterclockwise rotations when the mouse moves clockwise).
*/		*/

static void applyObjectConstraintRot(TransInfo t, TransData td, float vec[3], float *angle)		static void applyObjectConstraintRot(
		TransInfo t, TransDataContainer tc, TransData td, float vec[3], float angle)
{		{
if (t->con.mode & CON_APPLY) {		if (t->con.mode & CON_APPLY) {
int mode = t->con.mode & (CON_AXIS0 \| CON_AXIS1 \| CON_AXIS2);		int mode = t->con.mode & (CON_AXIS0 \| CON_AXIS1 \| CON_AXIS2);
float tmp_axismtx[3][3];		float tmp_axismtx[3][3];
float (*axismtx)[3];		float (*axismtx)[3];

/* on setup call, use first object */		/* on setup call, use first object */
if (td == NULL) {		if (td == NULL) {
td = t->data;		td = tc->data;
}		}

if (t->flag & T_EDIT) {		if (t->flag & T_EDIT) {
mul_m3_m3m3(tmp_axismtx, t->obedit_mat, td->axismtx);		mul_m3_m3m3(tmp_axismtx, tc->obedit_mat, td->axismtx);
axismtx = tmp_axismtx;		axismtx = tmp_axismtx;
}		}
else {		else {
axismtx = td->axismtx;		axismtx = td->axismtx;
}		}

switch (mode) {		switch (mode) {
case CON_AXIS0:		case CON_AXIS0:
Show All 33 Lines	void setConstraint(TransInfo *t, float space[3][3], int mode, const char text[])
t->con.applySize = applyAxisConstraintSize;		t->con.applySize = applyAxisConstraintSize;
t->con.applyRot = applyAxisConstraintRot;		t->con.applyRot = applyAxisConstraintRot;
t->redraw = TREDRAW_HARD;		t->redraw = TREDRAW_HARD;
}		}

/* applies individual td->axismtx constraints */		/* applies individual td->axismtx constraints */
void setAxisMatrixConstraint(TransInfo *t, int mode, const char text[])		void setAxisMatrixConstraint(TransInfo *t, int mode, const char text[])
{		{
if (t->total == 1) {		TransDataContainer *tc = t->data_container;
		if (t->data_len_all == 1) {
float axismtx[3][3];		float axismtx[3][3];
if (t->flag & T_EDIT) {		if (t->flag & T_EDIT) {
mul_m3_m3m3(axismtx, t->obedit_mat, t->data->axismtx);		mul_m3_m3m3(axismtx, tc->obedit_mat, tc->data->axismtx);
}		}
else {		else {
copy_m3_m3(axismtx, t->data->axismtx);		copy_m3_m3(axismtx, tc->data->axismtx);
}		}

setConstraint(t, axismtx, mode, text);		setConstraint(t, axismtx, mode, text);
}		}
else {		else {
BLI_strncpy(t->con.text + 1, text, sizeof(t->con.text) - 1);		BLI_strncpy(t->con.text + 1, text, sizeof(t->con.text) - 1);
copy_m3_m3(t->con.mtx, t->data->axismtx);		copy_m3_m3(t->con.mtx, tc->data->axismtx);
t->con.mode = mode;		t->con.mode = mode;
getConstraintMatrix(t);		getConstraintMatrix(t);

startConstraint(t);		startConstraint(t);

t->con.drawExtra = drawObjectConstraint;		t->con.drawExtra = drawObjectConstraint;
t->con.applyVec = applyObjectConstraintVec;		t->con.applyVec = applyObjectConstraintVec;
t->con.applySize = applyObjectConstraintSize;		t->con.applySize = applyObjectConstraintSize;
t->con.applyRot = applyObjectConstraintRot;		t->con.applyRot = applyObjectConstraintRot;
t->redraw = TREDRAW_HARD;		t->redraw = TREDRAW_HARD;
}		}
}		}

void setLocalConstraint(TransInfo *t, int mode, const char text[])		void setLocalConstraint(TransInfo *t, int mode, const char text[])
{		{
/* edit-mode now allows local transforms too */		/* edit-mode now allows local transforms too */
if (t->flag & T_EDIT) {		if (t->flag & T_EDIT) {
setConstraint(t, t->obedit_mat, mode, text);		/* Use the active (first) edit object. */
		TransDataContainer *tc = t->data_container;
		setConstraint(t, tc->obedit_mat, mode, text);
}		}
else {		else {
setAxisMatrixConstraint(t, mode, text);		setAxisMatrixConstraint(t, mode, text);
}		}
}		}

/*		/*
* Set the constraint according to the user defined orientation		* Set the constraint according to the user defined orientation
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{		{
/* Draw the first one lighter because that's the one who controls the others.		/* Draw the first one lighter because that's the one who controls the others.
* Meaning the transformation is projected on that one and just copied on the others		* Meaning the transformation is projected on that one and just copied on the others
* constraint space.		* constraint space.
* In a nutshell, the object with light axis is controlled by the user and the others follow.		* In a nutshell, the object with light axis is controlled by the user and the others follow.
* Without drawing the first light, users have little clue what they are doing.		* Without drawing the first light, users have little clue what they are doing.
*/		*/
short options = DRAWLIGHT;		short options = DRAWLIGHT;
TransData *td = t->data;
int i;		int i;
float tmp_axismtx[3][3];		float tmp_axismtx[3][3];

for (i = 0; i < t->total; i++, td++) {		FOREACH_TRANS_DATA_CONTAINER (t, tc) {
		TransData *td = tc->data;
		for (i = 0; i < tc->data_len; i++, td++) {
float co[3];		float co[3];
float (*axismtx)[3];		float (*axismtx)[3];

if (t->flag & T_PROP_EDIT) {		if (t->flag & T_PROP_EDIT) {
/* we're sorted, so skip the rest */		/* we're sorted, so skip the rest */
if (td->factor == 0.0f) {		if (td->factor == 0.0f) {
break;		break;
}		}
}		}

if (t->options & CTX_GPENCIL_STROKES) {		if (t->options & CTX_GPENCIL_STROKES) {
/* only draw a constraint line for one point, otherwise we can't see anything */		/* only draw a constraint line for one point, otherwise we can't see anything */
if ((options & DRAWLIGHT) == 0) {		if ((options & DRAWLIGHT) == 0) {
break;		break;
}		}
}		}

if (t->flag & T_OBJECT) {		if (t->flag & T_OBJECT) {
copy_v3_v3(co, td->ob->obmat[3]);		copy_v3_v3(co, td->ob->obmat[3]);
axismtx = td->axismtx;		axismtx = td->axismtx;
}		}
else if (t->flag & T_EDIT) {		else if (t->flag & T_EDIT) {
mul_v3_m4v3(co, t->obedit->obmat, td->center);		mul_v3_m4v3(co, tc->obedit->obmat, td->center);

mul_m3_m3m3(tmp_axismtx, t->obedit_mat, td->axismtx);		mul_m3_m3m3(tmp_axismtx, tc->obedit_mat, td->axismtx);
axismtx = tmp_axismtx;		axismtx = tmp_axismtx;
}		}
else if (t->flag & T_POSE) {		else if (t->flag & T_POSE) {
mul_v3_m4v3(co, t->poseobj->obmat, td->center);		mul_v3_m4v3(co, tc->poseobj->obmat, td->center);
axismtx = td->axismtx;		axismtx = td->axismtx;
}		}
else {		else {
copy_v3_v3(co, td->center);		copy_v3_v3(co, td->center);
axismtx = td->axismtx;		axismtx = td->axismtx;
}		}

if (t->con.mode & CON_AXIS0) {		if (t->con.mode & CON_AXIS0) {
drawLine(t, co, axismtx[0], 'X', options);		drawLine(t, co, axismtx[0], 'X', options);
}		}
if (t->con.mode & CON_AXIS1) {		if (t->con.mode & CON_AXIS1) {
drawLine(t, co, axismtx[1], 'Y', options);		drawLine(t, co, axismtx[1], 'Y', options);
}		}
if (t->con.mode & CON_AXIS2) {		if (t->con.mode & CON_AXIS2) {
drawLine(t, co, axismtx[2], 'Z', options);		drawLine(t, co, axismtx[2], 'Z', options);
}		}
options &= ~DRAWLIGHT;		options &= ~DRAWLIGHT;
}		}
		} // FIXME(indent)
}		}

/--------------------- START / STOP CONSTRAINTS ---------------------- /		/--------------------- START / STOP CONSTRAINTS ---------------------- /

void startConstraint(TransInfo *t)		void startConstraint(TransInfo *t)
{		{
t->con.mode \|= CON_APPLY;		t->con.mode \|= CON_APPLY;
*t->con.text = ' ';		*t->con.text = ' ';
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