forked from bartvdbraak/blender
Fix T40646: Knife project fails with clipping
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e848cb9e48
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f9b7617104
@ -1161,6 +1161,13 @@ static bool point_is_visible(KnifeTool_OpData *kcd, const float p[3], const floa
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{
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BMFace *f_hit;
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/* If box clipping on, make sure p is not clipped */
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if (kcd->vc.rv3d->rflag & RV3D_CLIPPING &&
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ED_view3d_clipping_test(kcd->vc.rv3d, p, true))
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{
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return false;
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}
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/* If not cutting through, make sure no face is in front of p */
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if (!kcd->cut_through) {
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float dist;
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@ -1181,19 +1188,23 @@ static bool point_is_visible(KnifeTool_OpData *kcd, const float p[3], const floa
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dist = kcd->vc.v3d->far * 2.0f;
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}
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if (kcd->vc.rv3d->rflag & RV3D_CLIPPING) {
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float view_clip[2][3];
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/* note: view_clip[0] should never get clipped */
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copy_v3_v3(view_clip[0], p_ofs);
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madd_v3_v3v3fl(view_clip[1], p_ofs, view, dist);
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if (clip_segment_v3_plane_n(view_clip[0], view_clip[1], kcd->vc.rv3d->clip_local, 6)) {
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dist = len_v3v3(p_ofs, view_clip[1]);
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}
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}
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/* see if there's a face hit between p1 and the view */
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f_hit = BKE_bmbvh_ray_cast(kcd->bmbvh, p_ofs, view, KNIFE_FLT_EPS, &dist, NULL, NULL);
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if (f_hit)
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return false;
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}
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/* If box clipping on, make sure p is not clipped */
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if (kcd->vc.rv3d->rflag & RV3D_CLIPPING &&
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ED_view3d_clipping_test(kcd->vc.rv3d, p, true))
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{
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return false;
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}
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return true;
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}
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