3DPrinting/PrusaSlicer-NonPlainar
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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
src/slic3r/GUI
3DScene.cpp

23
src/slic3r/GUI/3DScene.cpp
View file

@ -333,6 +333,13 @@ Transform3d GLVolume::world_matrix() const
return m;
}
bool GLVolume::is_left_handed() const
{
const Vec3d &m1 = m_instance_transformation.get_mirror();
const Vec3d &m2 = m_volume_transformation.get_mirror();
return m1.x() * m1.y() * m1.z() * m2.x() * m2.y() * m2.z() < 0.;
}
const BoundingBoxf3& GLVolume::transformed_bounding_box() const
{
assert(bounding_box.defined || bounding_box.min(0) >= bounding_box.max(0) || bounding_box.min(1) >= bounding_box.max(1) || bounding_box.min(2) >= bounding_box.max(2));
@ -401,6 +408,8 @@ void GLVolume::render() const
if (!is_active)
return;
if (this->is_left_handed())
glFrontFace(GL_CW);
glsafe(::glCullFace(GL_BACK));
glsafe(::glPushMatrix());
@ -410,6 +419,8 @@ void GLVolume::render() const
else
this->indexed_vertex_array.render();
glsafe(::glPopMatrix());
if (this->is_left_handed())
glFrontFace(GL_CCW);
}
void GLVolume::render_VBOs(int color_id, int detection_id, int worldmatrix_id) const
@ -420,6 +431,9 @@ void GLVolume::render_VBOs(int color_id, int detection_id, int worldmatrix_id) c
if (!indexed_vertex_array.vertices_and_normals_interleaved_VBO_id)
return;
if (this->is_left_handed())
glFrontFace(GL_CW);
GLsizei n_triangles = GLsizei(std::min(indexed_vertex_array.triangle_indices_size, tverts_range.second - tverts_range.first));
GLsizei n_quads = GLsizei(std::min(indexed_vertex_array.quad_indices_size, qverts_range.second - qverts_range.first));
if (n_triangles + n_quads == 0)
@ -481,6 +495,9 @@ void GLVolume::render_VBOs(int color_id, int detection_id, int worldmatrix_id) c
}
glsafe(::glPopMatrix());
if (this->is_left_handed())
glFrontFace(GL_CCW);
}
void GLVolume::render_legacy() const
@ -489,6 +506,9 @@ void GLVolume::render_legacy() const
if (!is_active)
return;
if (this->is_left_handed())
glFrontFace(GL_CW);
GLsizei n_triangles = GLsizei(std::min(indexed_vertex_array.triangle_indices_size, tverts_range.second - tverts_range.first));
GLsizei n_quads = GLsizei(std::min(indexed_vertex_array.quad_indices_size, qverts_range.second - qverts_range.first));
if (n_triangles + n_quads == 0)
@ -520,6 +540,9 @@ void GLVolume::render_legacy() const
glsafe(::glDrawElements(GL_QUADS, n_quads, GL_UNSIGNED_INT, indexed_vertex_array.quad_indices.data() + qverts_range.first));
glsafe(::glPopMatrix());
if (this->is_left_handed())
glFrontFace(GL_CCW);
}
std::vector<int> GLVolumeCollection::load_object(