--- a/src/glcompiler.cpp Fri Jan 12 00:55:31 2018 +0200 +++ b/src/glcompiler.cpp Sat Jan 13 00:04:54 2018 +0200 @@ -421,6 +421,12 @@ << -normals[vert].y() << -normals[vert].z(); } + else if (complement == VboSubclass::InvertedNormals) + { + vbodata << -normals[vert].x(); + vbodata << +normals[vert].y(); + vbodata << +normals[vert].z(); + } else { vbodata << ((GLfloat) color.red()) / 255.0f