diff options
Diffstat (limited to 'source/blender/blenkernel/intern/constraint.c')
| -rw-r--r-- | source/blender/blenkernel/intern/constraint.c | 80 |
1 files changed, 44 insertions, 36 deletions
diff --git a/source/blender/blenkernel/intern/constraint.c b/source/blender/blenkernel/intern/constraint.c index d6b68121c94..a475a16dd57 100644 --- a/source/blender/blenkernel/intern/constraint.c +++ b/source/blender/blenkernel/intern/constraint.c @@ -120,7 +120,8 @@ void BKE_constraint_unique_name(bConstraint *con, ListBase *list) /* ----------------- Evaluation Loop Preparation --------------- */ /* package an object/bone for use in constraint evaluation */ -/* This function MEM_calloc's a bConstraintOb struct, that will need to be freed after evaluation */ +/* This function MEM_calloc's a bConstraintOb struct, + * that will need to be freed after evaluation */ bConstraintOb *BKE_constraints_make_evalob( Depsgraph *depsgraph, Scene *scene, Object *ob, void *subdata, short datatype) { @@ -210,10 +211,10 @@ void BKE_constraints_clear_evalob(bConstraintOb *cob) /* calculate delta of constraints evaluation */ invert_m4_m4(imat, cob->startmat); - /* XXX This would seem to be in wrong order. However, it does not work in 'right' order - would be nice to - * understand why premul is needed here instead of usual postmul? - * In any case, we **do not get a delta** here (e.g. startmat & matrix having same location, still gives - * a 'delta' with non-null translation component :/ ).*/ + /* XXX This would seem to be in wrong order. However, it does not work in 'right' order - + * would be nice to understand why premul is needed here instead of usual postmul? + * In any case, we **do not get a delta** here (e.g. startmat & matrix having same location, + * still gives a 'delta' with non-null translation component :/ ).*/ mul_m4_m4m4(delta, cob->matrix, imat); /* copy matrices back to source */ @@ -352,8 +353,9 @@ void BKE_constraint_mat_convertspace( */ /* XXX This is actually an ugly hack, local space of a parent-less object *is* the same as * global space! - * Think what we want actually here is some kind of 'Final Space', i.e. once transformations - * are applied - users are often confused about this too, this is not consistent with bones + * Think what we want actually here is some kind of 'Final Space', i.e + * . once transformations are applied - users are often confused about this too, + * this is not consistent with bones * local space either... Meh :| * --mont29 */ @@ -1139,7 +1141,8 @@ static void trackto_evaluate(bConstraint *con, bConstraintOb *cob, ListBase *tar float size[3], vec[3]; float totmat[3][3]; - /* Get size property, since ob->scale is only the object's own relative size, not its global one */ + /* Get size property, since ob->scale is only the object's own relative size, + * not its global one. */ mat4_to_size(size, cob->matrix); /* Clear the object's rotation */ @@ -1357,12 +1360,11 @@ static void followpath_get_tarmat(struct Depsgraph *UNUSED(depsgraph), Nurb *nu = cu->nurb.first; curvetime = cu->ctime - data->offset; - /* ctime is now a proper var setting of Curve which gets set by Animato like any other var that's animated, - * but this will only work if it actually is animated... + /* ctime is now a proper var setting of Curve which gets set by Animato like any other var + * that's animated, but this will only work if it actually is animated... * - * we divide the curvetime calculated in the previous step by the length of the path, to get a time - * factor, which then gets clamped to lie within 0.0 - 1.0 range - */ + * we divide the curvetime calculated in the previous step by the length of the path, + * to get a time factor, which then gets clamped to lie within 0.0 - 1.0 range. */ curvetime /= cu->pathlen; if (nu && nu->flagu & CU_NURB_CYCLIC) { @@ -1806,9 +1808,10 @@ static void rotlike_evaluate(bConstraint *con, bConstraintOb *cob, ListBase *tar copy_v3_v3(loc, cob->matrix[3]); mat4_to_size(size, cob->matrix); - /* to allow compatible rotations, must get both rotations in the order of the owner... */ + /* To allow compatible rotations, must get both rotations in the order of the owner... */ mat4_to_eulO(obeul, cob->rotOrder, cob->matrix); - /* we must get compatible eulers from the beginning because some of them can be modified below (see bug #21875) */ + /* We must get compatible eulers from the beginning because + * some of them can be modified below (see bug T21875). */ mat4_to_compatible_eulO(eul, obeul, cob->rotOrder, ct->matrix); if ((data->flag & ROTLIKE_X) == 0) { @@ -1850,7 +1853,8 @@ static void rotlike_evaluate(bConstraint *con, bConstraintOb *cob, ListBase *tar } } - /* good to make eulers compatible again, since we don't know how much they were changed above */ + /* Good to make eulers compatible again, + * since we don't know how much they were changed above. */ compatible_eul(eul, obeul); loc_eulO_size_to_mat4(cob->matrix, loc, eul, size, cob->rotOrder); } @@ -2575,9 +2579,9 @@ static void actcon_get_tarmat(struct Depsgraph *UNUSED(depsgraph), bPose pose = {{0}}; bPoseChannel *pchan, *tchan; - /* make a copy of the bone of interest in the temp pose before evaluating action, so that it can get set - * - we need to manually copy over a few settings, including rotation order, otherwise this fails - */ + /* make a copy of the bone of interest in the temp pose before evaluating action, + * so that it can get set - we need to manually copy over a few settings, + * including rotation order, otherwise this fails. */ pchan = cob->pchan; tchan = BKE_pose_channel_verify(&pose, pchan->name); @@ -3559,7 +3563,8 @@ static void clampto_evaluate(bConstraint *con, bConstraintOb *cob, ListBase *tar offset = curveMin[clamp_axis] - ceilf((curveMin[clamp_axis] - ownLoc[clamp_axis]) / len) * len; - /* now, we calculate as per normal, except using offset instead of curveMin[clamp_axis] */ + /* Now, we calculate as per normal, + * except using offset instead of curveMin[clamp_axis]. */ curvetime = (ownLoc[clamp_axis] - offset) / (len); } else if (ownLoc[clamp_axis] > curveMax[clamp_axis]) { @@ -3567,7 +3572,8 @@ static void clampto_evaluate(bConstraint *con, bConstraintOb *cob, ListBase *tar offset = curveMax[clamp_axis] + (int)((ownLoc[clamp_axis] - curveMax[clamp_axis]) / len) * len; - /* now, we calculate as per normal, except using offset instead of curveMax[clamp_axis] */ + /* Now, we calculate as per normal, + * except using offset instead of curveMax[clamp_axis]. */ curvetime = (ownLoc[clamp_axis] - offset) / (len); } else { @@ -3689,11 +3695,10 @@ static void transform_evaluate(bConstraint *con, bConstraintOb *cob, ListBase *t mat4_to_size(dvec, ct->matrix); if (is_negative_m4(ct->matrix)) { - /* Bugfix [#27886] - * We can't be sure which axis/axes are negative, though we know that something is negative. - * Assume we don't care about negativity of separate axes. <--- This is a limitation that - * riggers will have to live with for now. - */ + /* Bugfix T27886: (this is a limitation that riggers will have to live with for now). + * We can't be sure which axis/axes are negative, + * though we know that something is negative. + * Assume we don't care about negativity of separate axes. */ negate_v3(dvec); } from_min = data->from_min_scale; @@ -3932,9 +3937,10 @@ static void shrinkwrap_get_tarmat(struct Depsgraph *UNUSED(depsgraph), break; } - /* transform normal into requested space */ - /* Note that in this specific case, we need to keep scaling in non-parented 'local2world' object - * case, because SpaceTransform also takes it into account when handling normals. See T42447. */ + /* Transform normal into requested space */ + /* Note that in this specific case, we need to keep scaling in non-parented 'local2world' + * object case, because SpaceTransform also takes it into account when handling normals. + * See T42447. */ unit_m4(mat); BKE_constraint_mat_convertspace( cob->ob, cob->pchan, mat, CONSTRAINT_SPACE_LOCAL, scon->projAxisSpace, true); @@ -5225,7 +5231,8 @@ static void con_extern_cb(bConstraint *UNUSED(con), } } -/* helper for BKE_constraints_copy(), to be used for making sure that usercounts of copied ID's are fixed up */ +/* helper for BKE_constraints_copy(), + * to be used for making sure that usercounts of copied ID's are fixed up */ static void con_fix_copied_refs_cb(bConstraint *UNUSED(con), ID **idpoin, bool is_reference, @@ -5460,7 +5467,8 @@ static bConstraint *constraint_find_original_for_update(bConstraintOb *cob, bCon /* -------- Constraints and Proxies ------- */ -/* Rescue all constraints tagged as being CONSTRAINT_PROXY_LOCAL (i.e. added to bone that's proxy-synced in this file) */ +/* Rescue all constraints tagged as being CONSTRAINT_PROXY_LOCAL + * (i.e. added to bone that's proxy-synced in this file) */ void BKE_constraints_proxylocal_extract(ListBase *dst, ListBase *src) { bConstraint *con, *next; @@ -5502,8 +5510,8 @@ bool BKE_constraints_proxylocked_owner(Object *ob, bPoseChannel *pchan) /* -------- Target-Matrix Stuff ------- */ /* This function is a relic from the prior implementations of the constraints system, when all - * constraints either had one or no targets. It used to be called during the main constraint solving - * loop, but is now only used for the remaining cases for a few constraints. + * constraints either had one or no targets. It used to be called during the main constraint + * solving loop, but is now only used for the remaining cases for a few constraints. * * None of the actual calculations of the matrices should be done here! Also, this function is * not to be used by any new constraints, particularly any that have multiple targets. @@ -5694,9 +5702,9 @@ void BKE_constraints_solve(struct Depsgraph *depsgraph, } /* Interpolate the enforcement, to blend result of constraint into final owner transform - * - all this happens in worldspace to prevent any weirdness creeping in ([#26014] and [#25725]), - * since some constraints may not convert the solution back to the input space before blending - * but all are guaranteed to end up in good "worldspace" result + * - all this happens in worldspace to prevent any weirdness creeping in + * (T26014 and T25725), since some constraints may not convert the solution back to the input + * space before blending but all are guaranteed to end up in good "worldspace" result. */ /* Note: all kind of stuff here before (caused trouble), much easier to just interpolate, * or did I miss something? -jahka (r.32105) */ |