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Fix for [#23549] Copy rotation don't work if influence is another than 0 or 1 

* Replaced constraint result interpolation with much simpler logic, hopefully this doesn't create any unseen complications :)
This commit is contained in:
Janne Karhu 2010-09-24 17:47:28 +00:00
parent b0f4c3c883
commit 3567eebcc2
1 changed files with 5 additions and 15 deletions
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20
source/blender/blenkernel/intern/constraint.c
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@ -4409,7 +4409,7 @@ void solve_constraints (ListBase *conlist, bConstraintOb *cob, float ctime)
}
}
/* Solve the constraint */
/* Solve the constraint and put result in cob->matrix */
cti->evaluate_constraint(con, cob, &targets);
/* clear targets after use
@ -4421,23 +4421,13 @@ void solve_constraints (ListBase *conlist, bConstraintOb *cob, float ctime)
}
/* Interpolate the enforcement, to blend result of constraint into final owner transform */
/* 1. Remove effects of original matrix from constraint solution ==> delta */
invert_m4_m4(imat, oldmat);
copy_m4_m4(solution, cob->matrix);
mul_m4_m4m4(delta, solution, imat);
/* 2. If constraint influence is not full strength, then interpolate
* identity_matrix --> delta_matrix to get the effect the constraint actually exerts
*/
/* Note: all kind of stuff here before (caused trouble), much easier to just interpolate, or did I miss something? -jahka */
if (enf < 1.0) {
float identity[4][4];
unit_m4(identity);
blend_m4_m4m4(delta, identity, delta, enf);
float solution[4][4];
copy_m4_m4(solution, cob->matrix);
blend_m4_m4m4(cob->matrix, oldmat, solution, enf);
}
/* 3. Now multiply the delta by the matrix in use before the evaluation */
mul_m4_m4m4(cob->matrix, delta, oldmat);
/* move owner back into worldspace for next constraint/other business */
if ((con->flag & CONSTRAINT_SPACEONCE) == 0)
constraint_mat_convertspace(cob->ob, cob->pchan, cob->matrix, con->ownspace, CONSTRAINT_SPACE_WORLD);