diff options
Diffstat (limited to 'source/blender/modifiers/intern/MOD_hook.c')
| -rw-r--r-- | source/blender/modifiers/intern/MOD_hook.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/source/blender/modifiers/intern/MOD_hook.c b/source/blender/modifiers/intern/MOD_hook.c index b1a662c8667..6b5d7233b60 100644 --- a/source/blender/modifiers/intern/MOD_hook.c +++ b/source/blender/modifiers/intern/MOD_hook.c @@ -143,6 +143,8 @@ struct HookData_cb { float mat_uniform[3][3]; float mat[4][4]; + + bool invert_vgroup; }; static float hook_falloff(const struct HookData_cb *hd, const float len_sq) @@ -236,7 +238,8 @@ static void hook_co_apply(struct HookData_cb *hd, const int j) if (fac) { if (hd->dvert) { - fac *= defvert_find_weight(&hd->dvert[j], hd->defgrp_index); + fac *= hd->invert_vgroup ? 1.0f - defvert_find_weight(&hd->dvert[j], hd->defgrp_index) : + defvert_find_weight(&hd->dvert[j], hd->defgrp_index); } if (fac) { @@ -259,6 +262,7 @@ static void deformVerts_do(HookModifierData *hmd, float dmat[4][4]; int i, *index_pt; struct HookData_cb hd; + const bool invert_vgroup = (hmd->flag & MOD_HOOK_INVERT_VGROUP) != 0; if (hmd->curfalloff == NULL) { /* should never happen, but bad lib linking could cause it */ @@ -283,6 +287,8 @@ static void deformVerts_do(HookModifierData *hmd, hd.use_falloff = (hd.falloff_sq != 0.0f); hd.use_uniform = (hmd->flag & MOD_HOOK_UNIFORM_SPACE) != 0; + hd.invert_vgroup = invert_vgroup; + if (hd.use_uniform) { copy_m3_m4(hd.mat_uniform, hmd->parentinv); mul_v3_m3v3(hd.cent, hd.mat_uniform, hmd->cent); |