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Fix for duplicated vertices in UV sphere when it's creating with large radius.

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Issue was caused by not enough threshold limit used for removing doubles.
Switched to adoptive threshold value calculation based on smallest length
of segments in meridians and parallels.
This commit is contained in:
Sergey Sharybin 2012-02-08 11:04:56 +00:00
parent 65f454a160
commit f0db5e8735
1 changed files with 14 additions and 1 deletions
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15
source/blender/editors/mesh/editmesh_add.c
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@ -1036,6 +1036,7 @@ static void make_prim(Object *obedit, int type, float mat[4][4], int tot, int se
float phi, phid, vec[3];
float q[4], cmat[3][3], nor[3]= {0.0, 0.0, 0.0};
short a, b;
float len, len2, vec2[3];
EM_clear_flag_all(em, SELECT);
@ -1117,7 +1118,19 @@ static void make_prim(Object *obedit, int type, float mat[4][4], int tot, int se
rotateflag(em, 2, v1->co, cmat);
}
removedoublesflag(em, 4, 0, 0.0001);
/* length of one segment on meridian */
len= 2*dia*sinf(phid / 2.0f);
/* length of one segment in shortest parallen */
vec[0]= dia*sinf(phid);
vec[1]= 0.0;
vec[2]= dia*cosf(phid);
mul_v3_m3v3(vec2, cmat, vec);
len2= len_v3v3(vec, vec2);
/* use shortest segment length divided by 3 as merge threshold */
removedoublesflag(em, 4, 0, MIN2(len, len2) / 3.0f);
/* and now do imat */
eve= em->verts.first;