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Optimising transformations in PET mode.

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Sorting elements in TransData array according to their distance. That means we can always stop loops when it finds the first element that doesn't apply. That makes PET factor calculation and actual transformations faster since it stops at the first element outside of the area.

The Sorting algo is a no swap version of quicksort using the start of each subset as the pivot (random would be better and easy to implement. Need 3 additional lines of code really).
This commit is contained in:
Martin Poirier
2005-03-15 17:31:46 +00:00
parent e9381e61aa
commit 1b61771d9e
2 changed files with 83 additions and 14 deletions
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27
source/blender/src/transform_generics.c
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@@ -541,6 +541,13 @@ void calculateCenterMedian(TransInfo *t)
if (t->data[i].flag & TD_SELECTED) {
VecAddf(partial, partial, t->data[i].center);
}
else {
/*
All the selected elements are at the head of the array
which means we can stop when it finds unselected data
*/
break;
}
}
VecMulf(partial, 1.0f / t->total);
VECCOPY(t->center, partial);
@@ -568,6 +575,13 @@ void calculateCenterBound(TransInfo *t)
if (t->data[i].flag & TD_SELECTED) {
MinMax3(min, max, t->data[i].center);
}
else {
/*
All the selected elements are at the head of the array
which means we can stop when it finds unselected data
*/
break;
}
}
else {
VECCOPY(max, t->data[i].center);
@@ -617,9 +631,9 @@ void calculateCenter(TransInfo *t)
Normalise(axis);
/* 6.0 = 6 grid units */
t->center[0]+= -6.0*axis[0];
t->center[1]+= -6.0*axis[1];
t->center[2]+= -6.0*axis[2];
t->center[0]+= -6.0f*axis[0];
t->center[1]+= -6.0f*axis[1];
t->center[2]+= -6.0f*axis[2];
}
}
initgrabz(t->center[0], t->center[1], t->center[2]);
@@ -638,8 +652,13 @@ void calculatePropRatio(TransInfo *t)
td->factor = 1.0f;
}
else if (td->dist > t->propsize) {
td->flag &= TD_NOACTION;
/*
The elements are sorted according to their dist member in the array,
that means we can stop when it finds one element outside of the propsize.
*/
td->flag |= TD_NOACTION;
td->factor = 0.0f;
break;
}
else {
td->flag &= ~TD_NOACTION;