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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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81
src/slic3r/GUI/GLCanvas3D.cpp
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@ -5010,24 +5010,12 @@ void GLCanvas3D::_render_sla_slices() const
Pointf3s &top_obj_triangles = it_caps_top->second.object;
Pointf3s &top_sup_triangles = it_caps_top->second.supports;
const std::vector<SLAPrintObject::Instance>& instances = obj->instances();
struct InstanceTransform
{
Vec3d offset;
float rotation;
};
std::vector<InstanceTransform> instance_transforms;
for (const SLAPrintObject::Instance& inst : instances)
{
instance_transforms.push_back({ to_3d(unscale(inst.shift), 0.), Geometry::rad2deg(inst.rotation) });
}
if ((bottom_obj_triangles.empty() || bottom_sup_triangles.empty() || top_obj_triangles.empty() || top_sup_triangles.empty()) &&
obj->is_step_done(slaposSliceSupports) && !obj->get_slice_index().empty())
{
double layer_height = print->default_object_config().layer_height.value;
double initial_layer_height = print->material_config().initial_layer_height.value;
bool left_handed = obj->is_left_handed();
coord_t key_zero = obj->get_slice_index().front().print_level();
// Slice at the center of the slab starting at clip_min_z will be rendered for the lower plane.
@ -5046,10 +5034,10 @@ void GLCanvas3D::_render_sla_slices() const
const ExPolygons& sup_bottom = slice_low.get_slice(soSupport);
// calculate model bottom cap
if (bottom_obj_triangles.empty() && !obj_bottom.empty())
bottom_obj_triangles = triangulate_expolygons_3d(obj_bottom, clip_min_z - plane_shift_z, true);
bottom_obj_triangles = triangulate_expolygons_3d(obj_bottom, clip_min_z - plane_shift_z, ! left_handed);
// calculate support bottom cap
if (bottom_sup_triangles.empty() && !sup_bottom.empty())
bottom_sup_triangles = triangulate_expolygons_3d(sup_bottom, clip_min_z - plane_shift_z, true);
bottom_sup_triangles = triangulate_expolygons_3d(sup_bottom, clip_min_z - plane_shift_z, ! left_handed);
}
if (slice_high.is_valid()) {
@ -5057,49 +5045,35 @@ void GLCanvas3D::_render_sla_slices() const
const ExPolygons& sup_top = slice_high.get_slice(soSupport);
// calculate model top cap
if (top_obj_triangles.empty() && !obj_top.empty())
top_obj_triangles = triangulate_expolygons_3d(obj_top, clip_max_z + plane_shift_z, false);
top_obj_triangles = triangulate_expolygons_3d(obj_top, clip_max_z + plane_shift_z, left_handed);
// calculate support top cap
if (top_sup_triangles.empty() && !sup_top.empty())
top_sup_triangles = triangulate_expolygons_3d(sup_top, clip_max_z + plane_shift_z, false);
top_sup_triangles = triangulate_expolygons_3d(sup_top, clip_max_z + plane_shift_z, left_handed);
}
}
if (!bottom_obj_triangles.empty() || !top_obj_triangles.empty() || !bottom_sup_triangles.empty() || !top_sup_triangles.empty())
{
for (const InstanceTransform& inst : instance_transforms)
for (const SLAPrintObject::Instance& inst : obj->instances())
{
::glPushMatrix();
::glTranslated(inst.offset(0), inst.offset(1), inst.offset(2));
::glRotatef(inst.rotation, 0.0, 0.0, 1.0);
::glBegin(GL_TRIANGLES);
::glTranslated(unscale<double>(inst.shift.x()), unscale<double>(inst.shift.y()), 0);
::glRotatef(Geometry::rad2deg(inst.rotation), 0.0, 0.0, 1.0);
if (obj->is_left_handed())
// The polygons are mirrored by X.
::glScalef(-1.0, 1.0, 1.0);
::glColor3f(1.0f, 0.37f, 0.0f);
for (const Vec3d& v : bottom_obj_triangles)
{
::glVertex3dv((GLdouble*)v.data());
}
for (const Vec3d& v : top_obj_triangles)
{
::glVertex3dv((GLdouble*)v.data());
}
::glColor3f(1.0f, 0.0f, 0.37f);
for (const Vec3d& v : bottom_sup_triangles)
{
::glVertex3dv((GLdouble*)v.data());
}
for (const Vec3d& v : top_sup_triangles)
{
::glVertex3dv((GLdouble*)v.data());
}
::glEnd();
::glEnableClientState(GL_VERTEX_ARRAY);
::glVertexPointer(3, GL_DOUBLE, 0, (GLdouble*)bottom_obj_triangles.front().data());
::glDrawArrays(GL_TRIANGLES, 0, bottom_obj_triangles.size());
::glVertexPointer(3, GL_DOUBLE, 0, (GLdouble*)top_obj_triangles.front().data());
::glDrawArrays(GL_TRIANGLES, 0, top_obj_triangles.size());
::glColor3f(1.0f, 0.0f, 0.37f);
::glVertexPointer(3, GL_DOUBLE, 0, (GLdouble*)bottom_sup_triangles.front().data());
::glDrawArrays(GL_TRIANGLES, 0, bottom_sup_triangles.size());
::glVertexPointer(3, GL_DOUBLE, 0, (GLdouble*)top_sup_triangles.front().data());
::glDrawArrays(GL_TRIANGLES, 0, top_sup_triangles.size());
::glDisableClientState(GL_VERTEX_ARRAY);
::glPopMatrix();
}
}
@ -6217,6 +6191,8 @@ void GLCanvas3D::_load_shells_fff()
void GLCanvas3D::_load_shells_sla()
{
//FIXME use reload_scene
#if 1
const SLAPrint* print = this->sla_print();
if (print->objects().empty())
// nothing to render, return
@ -6240,9 +6216,7 @@ void GLCanvas3D::_load_shells_sla()
m_volumes.load_object(model_obj, obj_idx, instance_idxs, "object", m_use_VBOs && m_initialized);
const std::vector<SLAPrintObject::Instance>& instances = obj->instances();
for (const SLAPrintObject::Instance& instance : instances)
for (const SLAPrintObject::Instance& instance : obj->instances())
{
Vec3d offset = unscale(instance.shift(0), instance.shift(1), 0);
Vec3d rotation(0.0, 0.0, (double)instance.rotation);
@ -6265,6 +6239,7 @@ void GLCanvas3D::_load_shells_sla()
v.composite_id.volume_id = -1;
v.set_instance_offset(offset);
v.set_instance_rotation(rotation);
v.set_instance_mirror(X, obj->is_left_handed() ? -1. : 1.);
}
// add pad
@ -6283,6 +6258,7 @@ void GLCanvas3D::_load_shells_sla()
v.composite_id.volume_id = -1;
v.set_instance_offset(offset);
v.set_instance_rotation(rotation);
v.set_instance_mirror(X, obj->is_left_handed() ? -1. : 1.);
}
// finalize volumes and sends geometry to gpu
@ -6305,6 +6281,9 @@ void GLCanvas3D::_load_shells_sla()
}
update_volumes_colors_by_extruder();
#else
this->reload_scene(true, true);
#endif
}
void GLCanvas3D::_update_gcode_volumes_visibility(const GCodePreviewData& preview_data)