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| author | Lukas Matena <lukasmatena@seznam.cz> | 2020-04-22 15:01:29 +0300 |
|---|---|---|
| committer | Lukas Matena <lukasmatena@seznam.cz> | 2020-04-22 15:01:29 +0300 |
| commit | a40d60ce089c52c5e0789259b099faa9a72b9344 (patch) | |
| tree | 83465e93e053b303dcf79322e364eff64e236094 /src | |
| parent | 1e12863ceb4809f08d97932fa1f93e5a583787cf (diff) | |
Custom support generation now ignores triangles with upward-pointing normal
Diffstat (limited to 'src')
| -rw-r--r-- | src/libslic3r/PrintObject.cpp | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/libslic3r/PrintObject.cpp b/src/libslic3r/PrintObject.cpp index 1af273f86..360c690f8 100644 --- a/src/libslic3r/PrintObject.cpp +++ b/src/libslic3r/PrintObject.cpp @@ -2667,6 +2667,10 @@ void PrintObject::project_and_append_custom_supports( for (int i=0; i<3; ++i) facet[i] = tr2 * tr1 * mesh.its.vertices[mesh.its.indices[facet_idx](i)]; + // Ignore triangles with upward-pointing normal. + if ((facet[1]-facet[0]).cross(facet[2]-facet[0]).z() > 0.) + continue; + // Sort the three vertices according to z-coordinate. std::sort(facet.begin(), facet.end(), [](const Vec3f& pt1, const Vec3f&pt2) { |