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bmesh grid fill: interpolate vertex customdata (useful for vertex weights and shapekeys)

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Campbell Barton 2013-05-16 07:21:34 +00:00
parent 8982439383
commit d4dc67d318
1 changed files with 18 additions and 0 deletions
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18
source/blender/bmesh/operators/bmo_grid_fill.c
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@ -31,6 +31,8 @@
#include "BLI_listbase.h"
#include "BLI_math.h"
#include "BKE_customdata.h"
#include "bmesh.h"
#include "intern/bmesh_operators_private.h" /* own include */
@ -110,6 +112,7 @@ static void bm_grid_fill_array(BMesh *bm, BMVert **v_grid, const int xtot, const
const short mat_nr, const bool use_smooth,
const bool use_flip)
{
const bool use_vert_interp = CustomData_has_interp(&bm->vdata);
int x, y;
#define XY(_x, _y) ((_x) + ((_y) * (xtot)))
@ -186,6 +189,19 @@ static void bm_grid_fill_array(BMesh *bm, BMVert **v_grid, const int xtot, const
v = BM_vert_create(bm, co, NULL, 0);
v_grid[(y * xtot) + x] = v;
/* interpolate only along one axis, this could be changed
* but from user pov gives predictable results since these are selected loop */
if (use_vert_interp) {
void *v_cdata[2] = {
v_grid[XY(x, 0)]->head.data,
v_grid[XY(x, (ytot - 1))]->head.data,
};
const float t = (float)y / ((float)ytot - 1);
const float w[2] = {1.0f - t, t};
CustomData_bmesh_interp(&bm->vdata, v_cdata, w, NULL, 2, v->head.data);
}
}
}
@ -272,7 +288,9 @@ static void bm_grid_fill(BMesh *bm,
for (el = lb_b->first, i = 0; el; el = el->next, i++) { v_grid[(ytot * xtot) + (i - xtot)] = el->data; }
for (el = lb_rail_a->first, i = 0; el; el = el->next, i++) { v_grid[xtot * i] = el->data; }
for (el = lb_rail_b->first, i = 0; el; el = el->next, i++) { v_grid[(xtot * i) + (xtot - 1)] = el->data; }
#ifdef DEBUG
for (x = 1; x < xtot - 1; x++) { for (y = 1; y < ytot - 1; y++) { BLI_assert(v_grid[(y * xtot) + x] == NULL); }}
#endif
#ifdef USE_FLIP_DETECT
{