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Sculpt-dev: fix exploding vertices bug 

Added code to detect and fix unnormalized normals,
still need to track down where exactly they are
coming from.
This commit is contained in:
Joseph Eagar 2022-03-13 22:10:58 -07:00
parent 8b719fee19
commit b71693b5f0
1 changed files with 7 additions and 4 deletions
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11
source/blender/editors/sculpt_paint/sculpt_smooth.c
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@ -1908,6 +1908,11 @@ static void do_smooth_brush_task_cb_ex(void *__restrict userdata,
copy_v3_v3(startco, vd.co);
SCULPT_vertex_normal_get(ss, vd.vertex, startno);
/* Ensure we have a valid normal. */
if (fabsf(dot_v3v3(startno, startno) - 1.0f) > 0.001) {
normalize_v3(startno);
}
int steps = data->do_origco ? 2 : 1;
for (int step = 0; step < steps; step++) {
@ -1953,16 +1958,14 @@ static void do_smooth_brush_task_cb_ex(void *__restrict userdata,
float veltmp[3];
copy_v3_v3(veltmp, vel);
/* remove tangental component */
/* Remove tangental component. */
float fac = dot_v3v3(vel, startno);
mul_v3_v3fl(vel, startno, fac);
/* note that "off" is interpreted here
as a force to update vel */
madd_v3_v3fl(vel, off, 0.2f);
mul_v3_fl(vel, 0.8f);
/* apply velocity */
/* Apply velocity. */
add_v3_v3(off, veltmp);
}