3D-printing/OrcaSlicer
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Handling of left hand oriented coordinate systems:

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is_left_handed() method on transformations and volumes
rendering of GLVolumes in left handed coordinate systems by glFrontFace(GL_CW);
SLA slicing on left hand oriented instances by flipping the mesh for SLAPrintObject in X.
rendering of the SLA cutting plane in left handed systems
resetting the SLA clipping planes on 3D preview invalidation
This commit is contained in:
bubnikv 2019-04-02 13:47:49 +02:00
parent 9594bf43b5
commit 086f11df98
11 changed files with 80 additions and 62 deletions
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7
src/libslic3r/SLAPrint.cpp
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@ -93,7 +93,10 @@ static Transform3d sla_trafo(const ModelObject &model_object)
offset(0) = 0.;
offset(1) = 0.;
rotation(2) = 0.;
return Geometry::assemble_transform(offset, rotation, model_instance.get_scaling_factor(), model_instance.get_mirror());
Transform3d trafo = Geometry::assemble_transform(offset, rotation, model_instance.get_scaling_factor(), model_instance.get_mirror());
if (model_instance.is_left_handed())
trafo = Eigen::Scaling(Vec3d(-1., 1., 1.)) * trafo;
return trafo;
}
// List of instances, where the ModelInstance transformation is a composite of sla_trafo and the transformation defined by SLAPrintObject::Instance.
@ -399,7 +402,7 @@ SLAPrint::ApplyStatus SLAPrint::apply(const Model &model, const DynamicPrintConf
// FIXME: this invalidates the transformed mesh in SLAPrintObject
// which is expensive to calculate (especially the raw_mesh() call)
print_object->set_trafo(sla_trafo(model_object));
print_object->set_trafo(sla_trafo(model_object), model_object.instances.front()->is_left_handed());
print_object->set_instances(new_instances);
print_object->config_apply(config, true);