643 lines
20 KiB
Perl
643 lines
20 KiB
Perl
package Slic3r::GUI::PreviewCanvas;
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use strict;
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use warnings;
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use Wx::Event qw(EVT_PAINT EVT_SIZE EVT_ERASE_BACKGROUND EVT_IDLE EVT_MOUSEWHEEL EVT_MOUSE_EVENTS);
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# must load OpenGL *before* Wx::GLCanvas
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use OpenGL qw(:glconstants :glfunctions :glufunctions);
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use base qw(Wx::GLCanvas Class::Accessor);
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use Math::Trig qw(asin);
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use List::Util qw(reduce min max first);
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use Slic3r::Geometry qw(X Y Z MIN MAX triangle_normal normalize deg2rad tan scale unscale);
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use Slic3r::Geometry::Clipper qw(offset_ex intersection_pl);
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use Wx::GLCanvas qw(:all);
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__PACKAGE__->mk_accessors( qw(quat dirty init mview_init
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object_bounding_box
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volumes initpos
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sphi stheta
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cutting_plane_z
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cut_lines_vertices
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bed_triangles
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bed_grid_lines
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origin
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) );
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use constant TRACKBALLSIZE => 0.8;
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use constant TURNTABLE_MODE => 1;
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use constant GROUND_Z => 0.02;
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use constant SELECTED_COLOR => [0,1,0,1];
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use constant COLORS => [ [1,1,0], [1,0.5,0.5], [0.5,1,0.5], [0.5,0.5,1] ];
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# make OpenGL::Array thread-safe
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{
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no warnings 'redefine';
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*OpenGL::Array::CLONE_SKIP = sub { 1 };
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}
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sub new {
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my ($class, $parent) = @_;
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# we request a depth buffer explicitely because it looks like it's not created by
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# default on Linux, causing transparency issues
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my $self = $class->SUPER::new($parent, -1, Wx::wxDefaultPosition, Wx::wxDefaultSize, 0, "",
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[WX_GL_RGBA, WX_GL_DOUBLEBUFFER, WX_GL_DEPTH_SIZE, 16, 0]);
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$self->quat((0, 0, 0, 1));
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$self->sphi(45);
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$self->stheta(-45);
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$self->reset_objects;
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EVT_PAINT($self, sub {
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my $dc = Wx::PaintDC->new($self);
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return if !$self->object_bounding_box;
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$self->Render($dc);
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});
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EVT_SIZE($self, sub { $self->dirty(1) });
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EVT_IDLE($self, sub {
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return unless $self->dirty;
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return if !$self->IsShownOnScreen;
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return if !$self->object_bounding_box;
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$self->Resize( $self->GetSizeWH );
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$self->Refresh;
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});
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EVT_MOUSEWHEEL($self, sub {
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my ($self, $e) = @_;
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my $zoom = ($e->GetWheelRotation() / $e->GetWheelDelta() / 10);
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$zoom = $zoom > 0 ? (1.0 + $zoom) : 1 / (1.0 - $zoom);
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my @pos3d = $self->mouse_to_3d($e->GetX(), $e->GetY());
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$self->ZoomTo($zoom, $pos3d[0], $pos3d[1]);
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$self->Refresh;
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});
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EVT_MOUSE_EVENTS($self, sub {
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my ($self, $e) = @_;
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if ($e->Dragging() && $e->LeftIsDown()) {
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$self->handle_rotation($e);
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} elsif ($e->Dragging() && $e->RightIsDown()) {
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$self->handle_translation($e);
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} elsif ($e->LeftUp() || $e->RightUp()) {
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$self->initpos(undef);
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} else {
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$e->Skip();
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}
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});
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return $self;
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}
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sub reset_objects {
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my ($self) = @_;
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$self->volumes([]);
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$self->dirty(1);
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}
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# this method accepts a Slic3r::BoudingBox3f object
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sub set_bounding_box {
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my ($self, $bb) = @_;
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$self->object_bounding_box($bb);
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$self->dirty(1);
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}
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sub set_auto_bed_shape {
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my ($self, $bed_shape) = @_;
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# draw a default square bed around object center
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my $max_size = max(@{ $self->object_bounding_box->size });
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my $center = $self->object_bounding_box->center;
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$self->set_bed_shape([
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[ $center->x - $max_size, $center->y - $max_size ], #--
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[ $center->x + $max_size, $center->y - $max_size ], #--
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[ $center->x + $max_size, $center->y + $max_size ], #++
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[ $center->x - $max_size, $center->y + $max_size ], #++
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]);
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$self->origin(Slic3r::Pointf->new(@$center[X,Y]));
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}
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sub set_bed_shape {
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my ($self, $bed_shape) = @_;
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# triangulate bed
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my $expolygon = Slic3r::ExPolygon->new([ map [map scale($_), @$_], @$bed_shape ]);
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my $bed_bb = $expolygon->bounding_box;
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{
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my @points = ();
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foreach my $triangle (@{ $expolygon->triangulate }) {
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push @points, map {+ unscale($_->x), unscale($_->y), GROUND_Z } @$triangle; #))
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}
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$self->bed_triangles(OpenGL::Array->new_list(GL_FLOAT, @points));
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}
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{
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my @lines = ();
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for (my $x = $bed_bb->x_min; $x <= $bed_bb->x_max; $x += scale 10) {
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push @lines, Slic3r::Polyline->new([$x,$bed_bb->y_min], [$x,$bed_bb->y_max]);
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}
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for (my $y = $bed_bb->y_min; $y <= $bed_bb->y_max; $y += scale 10) {
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push @lines, Slic3r::Polyline->new([$bed_bb->x_min,$y], [$bed_bb->x_max,$y]);
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}
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@lines = @{intersection_pl(\@lines, [ @$expolygon ])};
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my @points = ();
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foreach my $polyline (@lines) {
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push @points, map {+ unscale($_->x), unscale($_->y), GROUND_Z } @$polyline; #))
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}
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$self->bed_grid_lines(OpenGL::Array->new_list(GL_FLOAT, @points));
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}
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$self->origin(Slic3r::Pointf->new(0,0));
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}
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sub load_object {
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my ($self, $object, $all_instances) = @_;
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my $z_min = $object->raw_bounding_box->z_min;
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# color mesh(es) by material
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my @materials = ();
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# sort volumes: non-modifiers first
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my @volumes = sort { ($a->modifier // 0) <=> ($b->modifier // 0) } @{$object->volumes};
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foreach my $volume (@volumes) {
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my @instances = $all_instances ? @{$object->instances} : $object->instances->[0];
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foreach my $instance (@instances) {
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my $mesh = $volume->mesh->clone;
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$instance->transform_mesh($mesh);
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my $material_id = $volume->material_id // '_';
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my $color_idx = first { $materials[$_] eq $material_id } 0..$#materials;
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if (!defined $color_idx) {
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push @materials, $material_id;
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$color_idx = $#materials;
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}
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my $color = [ @{COLORS->[ $color_idx % scalar(@{&COLORS}) ]} ];
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push @$color, $volume->modifier ? 0.5 : 1;
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push @{$self->volumes}, my $v = {
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mesh => $mesh,
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color => $color,
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z_min => $z_min,
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};
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{
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my $vertices = $mesh->vertices;
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my @verts = map @{ $vertices->[$_] }, map @$_, @{$mesh->facets};
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$v->{verts} = OpenGL::Array->new_list(GL_FLOAT, @verts);
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}
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{
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my @norms = map { @$_, @$_, @$_ } @{$mesh->normals};
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$v->{norms} = OpenGL::Array->new_list(GL_FLOAT, @norms);
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}
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}
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}
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}
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sub SetCuttingPlane {
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my ($self, $z) = @_;
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$self->cutting_plane_z($z);
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# perform cut and cache section lines
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my @verts = ();
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foreach my $volume (@{$self->volumes}) {
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foreach my $volume (@{$self->volumes}) {
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my $expolygons = $volume->{mesh}->slice([ $z + $volume->{z_min} ])->[0];
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$expolygons = offset_ex([ map @$_, @$expolygons ], scale 0.1);
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foreach my $line (map @{$_->lines}, map @$_, @$expolygons) {
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push @verts, (
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unscale($line->a->x), unscale($line->a->y), $z, #))
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unscale($line->b->x), unscale($line->b->y), $z, #))
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);
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}
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}
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}
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$self->cut_lines_vertices(OpenGL::Array->new_list(GL_FLOAT, @verts));
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}
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# Given an axis and angle, compute quaternion.
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sub axis_to_quat {
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my ($ax, $phi) = @_;
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my $lena = sqrt(reduce { $a + $b } (map { $_ * $_ } @$ax));
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my @q = map { $_ * (1 / $lena) } @$ax;
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@q = map { $_ * sin($phi / 2.0) } @q;
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$q[$#q + 1] = cos($phi / 2.0);
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return @q;
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}
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# Project a point on the virtual trackball.
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# If it is inside the sphere, map it to the sphere, if it outside map it
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# to a hyperbola.
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sub project_to_sphere {
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my ($r, $x, $y) = @_;
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my $d = sqrt($x * $x + $y * $y);
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if ($d < $r * 0.70710678118654752440) { # Inside sphere
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return sqrt($r * $r - $d * $d);
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} else { # On hyperbola
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my $t = $r / 1.41421356237309504880;
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return $t * $t / $d;
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}
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}
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sub cross {
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my ($v1, $v2) = @_;
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return (@$v1[1] * @$v2[2] - @$v1[2] * @$v2[1],
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@$v1[2] * @$v2[0] - @$v1[0] * @$v2[2],
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@$v1[0] * @$v2[1] - @$v1[1] * @$v2[0]);
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}
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# Simulate a track-ball. Project the points onto the virtual trackball,
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# then figure out the axis of rotation, which is the cross product of
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# P1 P2 and O P1 (O is the center of the ball, 0,0,0) Note: This is a
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# deformed trackball-- is a trackball in the center, but is deformed
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# into a hyperbolic sheet of rotation away from the center.
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# It is assumed that the arguments to this routine are in the range
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# (-1.0 ... 1.0).
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sub trackball {
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my ($p1x, $p1y, $p2x, $p2y) = @_;
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if ($p1x == $p2x && $p1y == $p2y) {
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# zero rotation
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return (0.0, 0.0, 0.0, 1.0);
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}
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# First, figure out z-coordinates for projection of P1 and P2 to
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# deformed sphere
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my @p1 = ($p1x, $p1y, project_to_sphere(TRACKBALLSIZE, $p1x, $p1y));
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my @p2 = ($p2x, $p2y, project_to_sphere(TRACKBALLSIZE, $p2x, $p2y));
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# axis of rotation (cross product of P1 and P2)
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my @a = cross(\@p2, \@p1);
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# Figure out how much to rotate around that axis.
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my @d = map { $_ * $_ } (map { $p1[$_] - $p2[$_] } 0 .. $#p1);
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my $t = sqrt(reduce { $a + $b } @d) / (2.0 * TRACKBALLSIZE);
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# Avoid problems with out-of-control values...
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$t = 1.0 if ($t > 1.0);
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$t = -1.0 if ($t < -1.0);
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my $phi = 2.0 * asin($t);
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return axis_to_quat(\@a, $phi);
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}
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# Build a rotation matrix, given a quaternion rotation.
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sub quat_to_rotmatrix {
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my ($q) = @_;
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my @m = ();
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$m[0] = 1.0 - 2.0 * (@$q[1] * @$q[1] + @$q[2] * @$q[2]);
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$m[1] = 2.0 * (@$q[0] * @$q[1] - @$q[2] * @$q[3]);
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$m[2] = 2.0 * (@$q[2] * @$q[0] + @$q[1] * @$q[3]);
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$m[3] = 0.0;
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$m[4] = 2.0 * (@$q[0] * @$q[1] + @$q[2] * @$q[3]);
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$m[5] = 1.0 - 2.0 * (@$q[2] * @$q[2] + @$q[0] * @$q[0]);
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$m[6] = 2.0 * (@$q[1] * @$q[2] - @$q[0] * @$q[3]);
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$m[7] = 0.0;
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$m[8] = 2.0 * (@$q[2] * @$q[0] - @$q[1] * @$q[3]);
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$m[9] = 2.0 * (@$q[1] * @$q[2] + @$q[0] * @$q[3]);
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$m[10] = 1.0 - 2.0 * (@$q[1] * @$q[1] + @$q[0] * @$q[0]);
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$m[11] = 0.0;
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$m[12] = 0.0;
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$m[13] = 0.0;
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$m[14] = 0.0;
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$m[15] = 1.0;
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return @m;
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}
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sub mulquats {
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my ($q1, $rq) = @_;
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return (@$q1[3] * @$rq[0] + @$q1[0] * @$rq[3] + @$q1[1] * @$rq[2] - @$q1[2] * @$rq[1],
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@$q1[3] * @$rq[1] + @$q1[1] * @$rq[3] + @$q1[2] * @$rq[0] - @$q1[0] * @$rq[2],
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@$q1[3] * @$rq[2] + @$q1[2] * @$rq[3] + @$q1[0] * @$rq[1] - @$q1[1] * @$rq[0],
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@$q1[3] * @$rq[3] - @$q1[0] * @$rq[0] - @$q1[1] * @$rq[1] - @$q1[2] * @$rq[2])
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}
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sub handle_rotation {
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my ($self, $e) = @_;
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if (not defined $self->initpos) {
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$self->initpos($e->GetPosition());
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} else {
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my $orig = $self->initpos;
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my $new = $e->GetPosition();
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my $size = $self->GetClientSize();
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if (TURNTABLE_MODE) {
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$self->sphi($self->sphi + ($new->x - $orig->x)*TRACKBALLSIZE);
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$self->stheta($self->stheta + ($new->y - $orig->y)*TRACKBALLSIZE); #-
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} else {
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my @quat = trackball($orig->x / ($size->width / 2) - 1,
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1 - $orig->y / ($size->height / 2), #/
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$new->x / ($size->width / 2) - 1,
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1 - $new->y / ($size->height / 2), #/
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);
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$self->quat(mulquats($self->quat, \@quat));
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}
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$self->initpos($new);
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$self->Refresh;
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}
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}
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sub handle_translation {
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my ($self, $e) = @_;
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if (not defined $self->initpos) {
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$self->initpos($e->GetPosition());
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} else {
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my $new = $e->GetPosition();
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my $orig = $self->initpos;
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my @orig3d = $self->mouse_to_3d($orig->x, $orig->y); #)()
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my @new3d = $self->mouse_to_3d($new->x, $new->y); #)()
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glTranslatef($new3d[0] - $orig3d[0], $new3d[1] - $orig3d[1], 0);
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$self->initpos($new);
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$self->Refresh;
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}
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}
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sub mouse_to_3d {
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my ($self, $x, $y) = @_;
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my @viewport = glGetIntegerv_p(GL_VIEWPORT); # 4 items
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my @mview = glGetDoublev_p(GL_MODELVIEW_MATRIX); # 16 items
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my @proj = glGetDoublev_p(GL_PROJECTION_MATRIX); # 16 items
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my @projected = gluUnProject_p($x, $viewport[3] - $y, 1.0, @mview, @proj, @viewport);
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return @projected;
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}
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sub ZoomTo {
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my ($self, $factor, $tox, $toy) = @_;
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return if !$self->init;
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glTranslatef($tox, $toy, 0);
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glMatrixMode(GL_MODELVIEW);
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$self->Zoom($factor);
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glTranslatef(-$tox, -$toy, 0);
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}
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sub Zoom {
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my ($self, $factor) = @_;
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glMatrixMode(GL_MODELVIEW);
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glScalef($factor, $factor, 1);
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}
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sub GetContext {
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my ($self) = @_;
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if (Wx::wxVERSION >= 2.009) {
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return $self->{context} ||= Wx::GLContext->new($self);
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} else {
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return $self->SUPER::GetContext;
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}
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}
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sub SetCurrent {
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my ($self, $context) = @_;
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if (Wx::wxVERSION >= 2.009) {
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return $self->SUPER::SetCurrent($context);
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} else {
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return $self->SUPER::SetCurrent;
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}
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}
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sub ResetModelView {
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my ($self, $factor) = @_;
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glMatrixMode(GL_MODELVIEW);
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glLoadIdentity();
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my $win_size = $self->GetClientSize();
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my $ratio = $factor * min($win_size->width, $win_size->height) / (2 * max(@{ $self->object_bounding_box->size }));
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glScalef($ratio, $ratio, 1);
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}
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sub Resize {
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my ($self, $x, $y) = @_;
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return unless $self->GetContext;
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$self->dirty(0);
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$self->SetCurrent($self->GetContext);
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glViewport(0, 0, $x, $y);
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glMatrixMode(GL_PROJECTION);
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glLoadIdentity();
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glOrtho(
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-$x/2, $x/2, -$y/2, $y/2,
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-200, 10 * max(@{ $self->object_bounding_box->size }),
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);
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glMatrixMode(GL_MODELVIEW);
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unless ($self->mview_init) {
|
|
$self->mview_init(1);
|
|
$self->ResetModelView(0.9);
|
|
}
|
|
}
|
|
|
|
sub InitGL {
|
|
my $self = shift;
|
|
|
|
return if $self->init;
|
|
return unless $self->GetContext;
|
|
$self->init(1);
|
|
|
|
glClearColor(0, 0, 0, 1);
|
|
glColor3f(1, 0, 0);
|
|
glEnable(GL_DEPTH_TEST);
|
|
glClearDepth(1.0);
|
|
glDepthFunc(GL_LEQUAL);
|
|
glEnable(GL_CULL_FACE);
|
|
glEnable(GL_BLEND);
|
|
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
|
|
|
|
# ambient lighting
|
|
glLightModelfv_p(GL_LIGHT_MODEL_AMBIENT, 0.1, 0.1, 0.1, 1);
|
|
|
|
glEnable(GL_LIGHTING);
|
|
glEnable(GL_LIGHT0);
|
|
glEnable(GL_LIGHT1);
|
|
glLightfv_p(GL_LIGHT0, GL_POSITION, 0.5, 0.5, 1, 0);
|
|
glLightfv_p(GL_LIGHT0, GL_SPECULAR, 0.5, 0.5, 0.5, 1);
|
|
glLightfv_p(GL_LIGHT0, GL_DIFFUSE, 0.8, 0.8, 0.8, 1);
|
|
glLightfv_p(GL_LIGHT1, GL_POSITION, 1, 0, 0.5, 0);
|
|
glLightfv_p(GL_LIGHT1, GL_SPECULAR, 0.5, 0.5, 0.5, 1);
|
|
glLightfv_p(GL_LIGHT1, GL_DIFFUSE, 1, 1, 1, 1);
|
|
|
|
# Enables Smooth Color Shading; try GL_FLAT for (lack of) fun.
|
|
glShadeModel(GL_SMOOTH);
|
|
|
|
glMaterialfv_p(GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE, 0.5, 0.3, 0.3, 1);
|
|
glMaterialfv_p(GL_FRONT_AND_BACK, GL_SPECULAR, 1, 1, 1, 1);
|
|
glMaterialf(GL_FRONT_AND_BACK, GL_SHININESS, 50);
|
|
glMaterialfv_p(GL_FRONT_AND_BACK, GL_EMISSION, 0.1, 0, 0, 0.9);
|
|
|
|
# A handy trick -- have surface material mirror the color.
|
|
glColorMaterial(GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE);
|
|
glEnable(GL_COLOR_MATERIAL);
|
|
glEnable(GL_MULTISAMPLE);
|
|
}
|
|
|
|
sub Render {
|
|
my ($self, $dc) = @_;
|
|
|
|
# prevent calling SetCurrent() when window is not shown yet
|
|
return unless $self->IsShownOnScreen;
|
|
return unless my $context = $self->GetContext;
|
|
$self->SetCurrent($context);
|
|
$self->InitGL;
|
|
|
|
glClearColor(1, 1, 1, 1);
|
|
glClearDepth(1);
|
|
glDepthFunc(GL_LESS);
|
|
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
|
|
|
|
glMatrixMode(GL_MODELVIEW);
|
|
glPushMatrix();
|
|
|
|
my $bb = $self->object_bounding_box;
|
|
my $object_size = $bb->size;
|
|
glTranslatef(0, 0, -max(@$object_size[0..1]));
|
|
my @rotmat = quat_to_rotmatrix($self->quat);
|
|
glMultMatrixd_p(@rotmat[0..15]);
|
|
glRotatef($self->stheta, 1, 0, 0);
|
|
glRotatef($self->sphi, 0, 0, 1);
|
|
|
|
# center everything around 0,0 since that's where we're looking at (glOrtho())
|
|
my $center = $bb->center;
|
|
glTranslatef(-$center->x, -$center->y, 0); #,,
|
|
|
|
# draw objects
|
|
$self->draw_mesh;
|
|
|
|
# draw ground and axes
|
|
glDisable(GL_LIGHTING);
|
|
my $z0 = 0;
|
|
|
|
{
|
|
# draw ground
|
|
my $ground_z = GROUND_Z;
|
|
if ($self->bed_triangles) {
|
|
glEnable(GL_BLEND);
|
|
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
|
|
|
|
glEnableClientState(GL_VERTEX_ARRAY);
|
|
glColor4f(0.5, 0.5, 0.5, 0.3);
|
|
glNormal3d(0,0,1);
|
|
glVertexPointer_p(3, $self->bed_triangles);
|
|
glDrawArrays(GL_TRIANGLES, 0, $self->bed_triangles->elements / 3);
|
|
glDisableClientState(GL_VERTEX_ARRAY);
|
|
|
|
glDisable(GL_BLEND);
|
|
|
|
# draw grid
|
|
glTranslatef(0, 0, 0.02);
|
|
glLineWidth(3);
|
|
glColor3f(1.0, 1.0, 1.0);
|
|
glEnableClientState(GL_VERTEX_ARRAY);
|
|
glVertexPointer_p(3, $self->bed_grid_lines);
|
|
glDrawArrays(GL_LINES, 0, $self->bed_grid_lines->elements / 3);
|
|
glDisableClientState(GL_VERTEX_ARRAY);
|
|
}
|
|
|
|
{
|
|
# draw axes
|
|
$ground_z += 0.02;
|
|
my $origin = $self->origin;
|
|
my $axis_len = 2 * max(@{ $object_size });
|
|
glLineWidth(2);
|
|
glBegin(GL_LINES);
|
|
# draw line for x axis
|
|
glColor3f(1, 0, 0);
|
|
glVertex3f(@$origin, $ground_z);
|
|
glVertex3f($origin->x + $axis_len, $origin->y, $ground_z); #,,
|
|
# draw line for y axis
|
|
glColor3f(0, 1, 0);
|
|
glVertex3f(@$origin, $ground_z);
|
|
glVertex3f($origin->x, $origin->y + $axis_len, $ground_z); #++
|
|
# draw line for Z axis
|
|
glColor3f(0, 0, 1);
|
|
glVertex3f(@$origin, $ground_z);
|
|
glVertex3f(@$origin, $ground_z+$axis_len);
|
|
glEnd();
|
|
}
|
|
|
|
# draw cutting plane
|
|
if (defined $self->cutting_plane_z) {
|
|
my $plane_z = $z0 + $self->cutting_plane_z;
|
|
glDisable(GL_CULL_FACE);
|
|
glEnable(GL_BLEND);
|
|
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
|
|
glBegin(GL_QUADS);
|
|
glColor4f(0.8, 0.8, 0.8, 0.5);
|
|
glVertex3f($bb->x_min-20, $bb->y_min-20, $plane_z);
|
|
glVertex3f($bb->x_max+20, $bb->y_min-20, $plane_z);
|
|
glVertex3f($bb->x_max+20, $bb->y_max+20, $plane_z);
|
|
glVertex3f($bb->x_min-20, $bb->y_max+20, $plane_z);
|
|
glEnd();
|
|
glEnable(GL_CULL_FACE);
|
|
glDisable(GL_BLEND);
|
|
}
|
|
}
|
|
|
|
glEnable(GL_LIGHTING);
|
|
|
|
glPopMatrix();
|
|
glFlush();
|
|
|
|
$self->SwapBuffers();
|
|
}
|
|
|
|
sub draw_mesh {
|
|
my $self = shift;
|
|
|
|
glEnable(GL_BLEND);
|
|
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
|
|
glEnableClientState(GL_VERTEX_ARRAY);
|
|
glEnableClientState(GL_NORMAL_ARRAY);
|
|
|
|
foreach my $volume (@{$self->volumes}) {
|
|
glTranslatef(0, 0, -$volume->{z_min});
|
|
|
|
glVertexPointer_p(3, $volume->{verts});
|
|
|
|
glCullFace(GL_BACK);
|
|
glNormalPointer_p($volume->{norms});
|
|
if ($volume->{selected}) {
|
|
glColor4f(@{ &SELECTED_COLOR });
|
|
} else {
|
|
glColor4f(@{ $volume->{color} });
|
|
}
|
|
glDrawArrays(GL_TRIANGLES, 0, $volume->{verts}->elements / 3);
|
|
|
|
glTranslatef(0, 0, +$volume->{z_min});
|
|
}
|
|
glDisableClientState(GL_NORMAL_ARRAY);
|
|
glDisable(GL_BLEND);
|
|
|
|
if (defined $self->cutting_plane_z) {
|
|
glLineWidth(2);
|
|
glColor3f(0, 0, 0);
|
|
glVertexPointer_p(3, $self->cut_lines_vertices);
|
|
glDrawArrays(GL_LINES, 0, $self->cut_lines_vertices->elements / 3);
|
|
}
|
|
glDisableClientState(GL_VERTEX_ARRAY);
|
|
}
|
|
|
|
1;
|