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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.hpp
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@@ -51,6 +51,7 @@ public:
const SLAPrintObjectConfig& config() const { return m_config; }
const Transform3d& trafo() const { return m_trafo; }
bool is_left_handed() const { return m_left_handed; }
struct Instance {
Instance(ModelID instance_id, const Point &shift, float rotation) : instance_id(instance_id), shift(shift), rotation(rotation) {}
@@ -241,8 +242,8 @@ protected:
void config_apply_only(const ConfigBase &other, const t_config_option_keys &keys, bool ignore_nonexistent = false)
{ this->m_config.apply_only(other, keys, ignore_nonexistent); }
void set_trafo(const Transform3d& trafo) {
m_transformed_rmesh.invalidate([this, &trafo](){ m_trafo = trafo; });
void set_trafo(const Transform3d& trafo, bool left_handed) {
m_transformed_rmesh.invalidate([this, &trafo, left_handed](){ m_trafo = trafo; m_left_handed = left_handed; });
}
void set_instances(const std::vector<Instance> &instances) { m_instances = instances; }
@@ -262,6 +263,8 @@ private:
// Translation in Z + Rotation by Y and Z + Scaling / Mirroring.
Transform3d m_trafo = Transform3d::Identity();
// m_trafo is left handed -> 3x3 affine transformation has negative determinant.
bool m_left_handed = false;
std::vector<Instance> m_instances;