kannonier8/blender
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small improvement to previous commit, use pre-calculated ngon normal to avoid calculating twice when dupli-scale is enabled.

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This commit is contained in:
Campbell Barton 2012-09-25 00:25:17 +00:00
parent b0bf816ece
commit 9d0875828e
3 changed files with 5 additions and 5 deletions
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2
source/blender/blenkernel/BKE_mesh.h
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@ -98,7 +98,7 @@ void BKE_mesh_calc_poly_center(struct MPoly *mpoly, struct MLoop *loopstart,
struct MVert *mvarray, float cent[3]);
float BKE_mesh_calc_poly_area(struct MPoly *mpoly, struct MLoop *loopstart,
struct MVert *mvarray, float polynormal[3]);
struct MVert *mvarray, const float polynormal[3]);
/* Find the index of the loop in 'poly' which references vertex,
* returns -1 if not found */

2
source/blender/blenkernel/intern/anim.c
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@ -1171,7 +1171,7 @@ static void face_duplilist(ListBase *lb, ID *id, Scene *scene, Object *par, floa
/* scale */
if (par->transflag & OB_DUPLIFACES_SCALE) {
float size = BKE_mesh_calc_poly_area(mp, loopstart, mvert, NULL);
float size = BKE_mesh_calc_poly_area(mp, loopstart, mvert, f_no);
size = sqrtf(size) * par->dupfacesca;
mul_m3_fl(mat, size);
}

6
source/blender/blenkernel/intern/mesh.c
View File

@ -3016,7 +3016,7 @@ void BKE_mesh_calc_poly_center(MPoly *mpoly, MLoop *loopstart,
/* note, passing polynormal is only a speedup so we can skip calculating it */
float BKE_mesh_calc_poly_area(MPoly *mpoly, MLoop *loopstart,
MVert *mvarray, float polynormal[3])
MVert *mvarray, const float polynormal[3])
{
if (mpoly->totloop == 3) {
return area_tri_v3(mvarray[loopstart[0].v].co,
@ -3035,7 +3035,7 @@ float BKE_mesh_calc_poly_area(MPoly *mpoly, MLoop *loopstart,
int i;
MLoop *l_iter = loopstart;
float area, polynorm_local[3], (*vertexcos)[3];
float *no = polynormal ? polynormal : polynorm_local;
const float *no = polynormal ? polynormal : polynorm_local;
BLI_array_fixedstack_declare(vertexcos, BM_NGON_STACK_SIZE, mpoly->totloop, __func__);
/* pack vertex cos into an array for area_poly_v3 */
@ -3045,7 +3045,7 @@ float BKE_mesh_calc_poly_area(MPoly *mpoly, MLoop *loopstart,
/* need normal for area_poly_v3 as well */
if (polynormal == NULL) {
BKE_mesh_calc_poly_normal(mpoly, loopstart, mvarray, no);
BKE_mesh_calc_poly_normal(mpoly, loopstart, mvarray, polynorm_local);
}
/* finally calculate the area */