package Slic3r::GUI::3DScene::Base;
use strict;
use warnings;
use Wx::Event qw(EVT_PAINT EVT_SIZE EVT_ERASE_BACKGROUND EVT_IDLE EVT_MOUSEWHEEL EVT_MOUSE_EVENTS);
# must load OpenGL *before* Wx::GLCanvas
use OpenGL qw(:glconstants :glfunctions :glufunctions :gluconstants);
use base qw(Wx::GLCanvas Class::Accessor);
use Math::Trig qw(asin);
use List::Util qw(reduce min max first);
use Slic3r::Geometry qw(X Y Z MIN MAX triangle_normal normalize deg2rad tan scale unscale scaled_epsilon);
use Slic3r::Geometry::Clipper qw(offset_ex intersection_pl);
use Wx::GLCanvas qw(:all);
__PACKAGE__->mk_accessors( qw(_quat _dirty init
enable_cutting
enable_picking
enable_moving
on_viewport_changed
on_hover
on_select
on_double_click
on_right_click
on_move
volumes
_sphi _stheta
cutting_plane_z
cut_lines_vertices
bed_shape
bed_triangles
bed_grid_lines
background
origin
_mouse_pos
_hover_volume_idx
_drag_volume_idx
_drag_start_pos
_drag_start_xy
_dragged
_camera_target
_zoom
) );
use constant TRACKBALLSIZE => 0.8;
use constant TURNTABLE_MODE => 1;
use constant GROUND_Z => -0.02;
use constant DEFAULT_COLOR => [1,1,0];
use constant SELECTED_COLOR => [0,1,0,1];
use constant HOVER_COLOR => [0.4,0.9,0,1];
# make OpenGL::Array thread-safe
{
no warnings 'redefine';
*OpenGL::Array::CLONE_SKIP = sub { 1 };
}
sub new {
my ($class, $parent) = @_;
# we request a depth buffer explicitely because it looks like it's not created by
# default on Linux, causing transparency issues
my $self = $class->SUPER::new($parent, -1, Wx::wxDefaultPosition, Wx::wxDefaultSize, 0, "",
[WX_GL_RGBA, WX_GL_DOUBLEBUFFER, WX_GL_DEPTH_SIZE, 16, 0]);
$self->background(1);
$self->_quat((0, 0, 0, 1));
$self->_stheta(45);
$self->_sphi(45);
$self->_zoom(1);
# 3D point in model space
$self->_camera_target(Slic3r::Pointf3->new(0,0,0));
$self->reset_objects;
EVT_PAINT($self, sub {
my $dc = Wx::PaintDC->new($self);
$self->Render($dc);
});
EVT_SIZE($self, sub { $self->_dirty(1) });
EVT_IDLE($self, sub {
return unless $self->_dirty;
return if !$self->IsShownOnScreen;
$self->Resize( $self->GetSizeWH );
$self->Refresh;
});
EVT_MOUSEWHEEL($self, sub {
my ($self, $e) = @_;
# Calculate the zoom delta and apply it to the current zoom factor
my $zoom = $e->GetWheelRotation() / $e->GetWheelDelta();
$zoom = max(min($zoom, 4), -4);
$zoom /= 10;
$self->_zoom($self->_zoom / (1-$zoom));
# In order to zoom around the mouse point we need to translate
# the camera target
my $size = Slic3r::Pointf->new($self->GetSizeWH);
my $pos = Slic3r::Pointf->new($e->GetX, $size->y - $e->GetY); #-
$self->_camera_target->translate(
# ($pos - $size/2) represents the vector from the viewport center
# to the mouse point. By multiplying it by $zoom we get the new,
# transformed, length of such vector.
# Since we want that point to stay fixed, we move our camera target
# in the opposite direction by the delta of the length of such vector
# ($zoom - 1). We then scale everything by 1/$self->_zoom since
# $self->_camera_target is expressed in terms of model units.
-($pos->x - $size->x/2) * ($zoom) / $self->_zoom,
-($pos->y - $size->y/2) * ($zoom) / $self->_zoom,
0,
) if 0;
$self->on_viewport_changed->() if $self->on_viewport_changed;
$self->_dirty(1);
$self->Refresh;
});
EVT_MOUSE_EVENTS($self, \&mouse_event);
return $self;
}
sub mouse_event {
my ($self, $e) = @_;
my $pos = Slic3r::Pointf->new($e->GetPositionXY);
if ($e->Entering && &Wx::wxMSW) {
# wxMSW needs focus in order to catch mouse wheel events
$self->SetFocus;
} elsif ($e->LeftDClick) {
$self->on_double_click->()
if $self->on_double_click;
} elsif ($e->LeftDown || $e->RightDown) {
# If user pressed left or right button we first check whether this happened
# on a volume or not.
my $volume_idx = $self->_hover_volume_idx // -1;
# select volume in this 3D canvas
if ($self->enable_picking) {
$self->deselect_volumes;
$self->select_volume($volume_idx);
if ($volume_idx != -1) {
my $group_id = $self->volumes->[$volume_idx]->select_group_id;
my @volumes;
if ($group_id != -1) {
$self->select_volume($_)
for grep $self->volumes->[$_]->select_group_id == $group_id,
0..$#{$self->volumes};
}
}
$self->Refresh;
}
# propagate event through callback
$self->on_select->($volume_idx)
if $self->on_select;
if ($volume_idx != -1) {
if ($e->LeftDown && $self->enable_moving) {
$self->_drag_volume_idx($volume_idx);
$self->_drag_start_pos($self->mouse_to_3d(@$pos));
} elsif ($e->RightDown) {
# if right clicking on volume, propagate event through callback
$self->on_right_click->($e->GetPosition)
if $self->on_right_click;
}
}
} elsif ($e->Dragging && $e->LeftIsDown && defined($self->_drag_volume_idx)) {
# get new position at the same Z of the initial click point
my $mouse_ray = $self->mouse_ray($e->GetX, $e->GetY);
my $cur_pos = $mouse_ray->intersect_plane($self->_drag_start_pos->z);
# calculate the translation vector
my $vector = $self->_drag_start_pos->vector_to($cur_pos);
# get volume being dragged
my $volume = $self->volumes->[$self->_drag_volume_idx];
# get all volumes belonging to the same group, if any
my @volumes;
if ($volume->drag_group_id == -1) {
@volumes = ($volume);
} else {
@volumes = grep $_->drag_group_id == $volume->drag_group_id, @{$self->volumes};
}
# apply new temporary volume origin and ignore Z
$_->origin->translate($vector->x, $vector->y, 0) for @volumes; #,,
$self->_drag_start_pos($cur_pos);
$self->_dragged(1);
$self->Refresh;
} elsif ($e->Dragging) {
if ($e->LeftIsDown) {
# if dragging over blank area with left button, rotate
if (defined $self->_drag_start_pos) {
my $orig = $self->_drag_start_pos;
if (TURNTABLE_MODE) {
$self->_sphi($self->_sphi + ($pos->x - $orig->x) * TRACKBALLSIZE);
$self->_stheta($self->_stheta - ($pos->y - $orig->y) * TRACKBALLSIZE); #-
$self->_stheta(150) if $self->_stheta > 150;
$self->_stheta(0) if $self->_stheta < 0;
} else {
my $size = $self->GetClientSize;
my @quat = trackball(
$orig->x / ($size->width / 2) - 1,
1 - $orig->y / ($size->height / 2), #/
$pos->x / ($size->width / 2) - 1,
1 - $pos->y / ($size->height / 2), #/
);
$self->_quat(mulquats($self->_quat, \@quat));
}
$self->on_viewport_changed->() if $self->on_viewport_changed;
$self->Refresh;
}
$self->_drag_start_pos($pos);
} elsif ($e->MiddleIsDown || $e->RightIsDown) {
# if dragging over blank area with right button, translate
if (defined $self->_drag_start_xy) {
# get point in model space at Z = 0
my $cur_pos = $self->mouse_ray($e->GetX, $e->GetY)->intersect_plane(0);
my $orig = $self->mouse_ray(@{$self->_drag_start_xy})->intersect_plane(0);
$self->_camera_target->translate(
@{$orig->vector_to($cur_pos)->negative},
);
$self->on_viewport_changed->() if $self->on_viewport_changed;
$self->Refresh;
}
$self->_drag_start_xy($pos);
}
} elsif ($e->LeftUp || $e->MiddleUp || $e->RightUp) {
if ($self->on_move && defined($self->_drag_volume_idx) && $self->_dragged) {
# get all volumes belonging to the same group, if any
my @volume_idxs;
my $group_id = $self->volumes->[$self->_drag_volume_idx]->drag_group_id;
if ($group_id == -1) {
@volume_idxs = ($self->_drag_volume_idx);
} else {
@volume_idxs = grep $self->volumes->[$_]->drag_group_id == $group_id,
0..$#{$self->volumes};
}
$self->on_move->(@volume_idxs);
}
$self->_drag_volume_idx(undef);
$self->_drag_start_pos(undef);
$self->_drag_start_xy(undef);
$self->_dragged(undef);
} elsif ($e->Moving) {
$self->_mouse_pos($pos);
$self->Refresh;
} else {
$e->Skip();
}
}
sub reset_objects {
my ($self) = @_;
$self->volumes([]);
$self->_dirty(1);
}
sub set_viewport_from_scene {
my ($self, $scene) = @_;
$self->_sphi($scene->_sphi);
$self->_stheta($scene->_stheta);
$self->_camera_target($scene->_camera_target);
$self->_zoom($scene->_zoom);
$self->_quat($scene->_quat);
$self->_dirty(1);
}
sub zoom_to_bounding_box {
my ($self, $bb) = @_;
# calculate the zoom factor needed to adjust viewport to
# bounding box
my $max_size = max(@{$bb->size}) * 2;
my $min_viewport_size = min($self->GetSizeWH);
$self->_zoom($min_viewport_size / $max_size);
# center view around bounding box center
$self->_camera_target($bb->center);
$self->on_viewport_changed->() if $self->on_viewport_changed;
}
sub zoom_to_bed {
my ($self) = @_;
if ($self->bed_shape) {
$self->zoom_to_bounding_box($self->bed_bounding_box);
}
}
sub zoom_to_volume {
my ($self, $volume_idx) = @_;
my $volume = $self->volumes->[$volume_idx];
my $bb = $volume->transformed_bounding_box;
$self->zoom_to_bounding_box($bb);
}
sub zoom_to_volumes {
my ($self) = @_;
$self->zoom_to_bounding_box($self->volumes_bounding_box);
}
sub volumes_bounding_box {
my ($self) = @_;
my $bb = Slic3r::Geometry::BoundingBoxf3->new;
$bb->merge($_->transformed_bounding_box) for @{$self->volumes};
return $bb;
}
sub bed_bounding_box {
my ($self) = @_;
my $bb = Slic3r::Geometry::BoundingBoxf3->new;
$bb->merge_point(Slic3r::Pointf3->new(@$_, 0)) for @{$self->bed_shape};
return $bb;
}
sub max_bounding_box {
my ($self) = @_;
my $bb = $self->bed_bounding_box;
$bb->merge($self->volumes_bounding_box);
return $bb;
}
sub set_auto_bed_shape {
my ($self, $bed_shape) = @_;
# draw a default square bed around object center
my $max_size = max(@{ $self->volumes_bounding_box->size });
my $center = $self->volumes_bounding_box->center;
$self->set_bed_shape([
[ $center->x - $max_size, $center->y - $max_size ], #--
[ $center->x + $max_size, $center->y - $max_size ], #--
[ $center->x + $max_size, $center->y + $max_size ], #++
[ $center->x - $max_size, $center->y + $max_size ], #++
]);
$self->origin(Slic3r::Pointf->new(@$center[X,Y]));
}
sub set_bed_shape {
my ($self, $bed_shape) = @_;
$self->bed_shape($bed_shape);
# triangulate bed
my $expolygon = Slic3r::ExPolygon->new([ map [map scale($_), @$_], @$bed_shape ]);
my $bed_bb = $expolygon->bounding_box;
{
my @points = ();
foreach my $triangle (@{ $expolygon->triangulate }) {
push @points, map {+ unscale($_->x), unscale($_->y), GROUND_Z } @$triangle; #))
}
$self->bed_triangles(OpenGL::Array->new_list(GL_FLOAT, @points));
}
{
my @polylines = ();
for (my $x = $bed_bb->x_min; $x <= $bed_bb->x_max; $x += scale 10) {
push @polylines, Slic3r::Polyline->new([$x,$bed_bb->y_min], [$x,$bed_bb->y_max]);
}
for (my $y = $bed_bb->y_min; $y <= $bed_bb->y_max; $y += scale 10) {
push @polylines, Slic3r::Polyline->new([$bed_bb->x_min,$y], [$bed_bb->x_max,$y]);
}
# clip with a slightly grown expolygon because our lines lay on the contours and
# may get erroneously clipped
my @lines = map Slic3r::Line->new(@$_[0,-1]),
@{intersection_pl(\@polylines, [ @{$expolygon->offset(+scaled_epsilon)} ])};
# append bed contours
push @lines, map @{$_->lines}, @$expolygon;
my @points = ();
foreach my $line (@lines) {
push @points, map {+ unscale($_->x), unscale($_->y), GROUND_Z } @$line; #))
}
$self->bed_grid_lines(OpenGL::Array->new_list(GL_FLOAT, @points));
}
$self->origin(Slic3r::Pointf->new(0,0));
}
sub deselect_volumes {
my ($self) = @_;
$_->selected(0) for @{$self->volumes};
}
sub select_volume {
my ($self, $volume_idx) = @_;
$self->volumes->[$volume_idx]->selected(1)
if $volume_idx != -1;
}
sub SetCuttingPlane {
my ($self, $z) = @_;
$self->cutting_plane_z($z);
# perform cut and cache section lines
my @verts = ();
foreach my $volume (@{$self->volumes}) {
foreach my $volume (@{$self->volumes}) {
next if !$volume->mesh;
my $expolygons = $volume->mesh->slice([ $z - $volume->origin->z ])->[0];
$expolygons = offset_ex([ map @$_, @$expolygons ], scale 0.1);
foreach my $line (map @{$_->lines}, map @$_, @$expolygons) {
push @verts, (
unscale($line->a->x), unscale($line->a->y), $z, #))
unscale($line->b->x), unscale($line->b->y), $z, #))
);
}
}
}
$self->cut_lines_vertices(OpenGL::Array->new_list(GL_FLOAT, @verts));
}
# Given an axis and angle, compute quaternion.
sub axis_to_quat {
my ($ax, $phi) = @_;
my $lena = sqrt(reduce { $a + $b } (map { $_ * $_ } @$ax));
my @q = map { $_ * (1 / $lena) } @$ax;
@q = map { $_ * sin($phi / 2.0) } @q;
$q[$#q + 1] = cos($phi / 2.0);
return @q;
}
# Project a point on the virtual trackball.
# If it is inside the sphere, map it to the sphere, if it outside map it
# to a hyperbola.
sub project_to_sphere {
my ($r, $x, $y) = @_;
my $d = sqrt($x * $x + $y * $y);
if ($d < $r * 0.70710678118654752440) { # Inside sphere
return sqrt($r * $r - $d * $d);
} else { # On hyperbola
my $t = $r / 1.41421356237309504880;
return $t * $t / $d;
}
}
sub cross {
my ($v1, $v2) = @_;
return (@$v1[1] * @$v2[2] - @$v1[2] * @$v2[1],
@$v1[2] * @$v2[0] - @$v1[0] * @$v2[2],
@$v1[0] * @$v2[1] - @$v1[1] * @$v2[0]);
}
# Simulate a track-ball. Project the points onto the virtual trackball,
# then figure out the axis of rotation, which is the cross product of
# P1 P2 and O P1 (O is the center of the ball, 0,0,0) Note: This is a
# deformed trackball-- is a trackball in the center, but is deformed
# into a hyperbolic sheet of rotation away from the center.
# It is assumed that the arguments to this routine are in the range
# (-1.0 ... 1.0).
sub trackball {
my ($p1x, $p1y, $p2x, $p2y) = @_;
if ($p1x == $p2x && $p1y == $p2y) {
# zero rotation
return (0.0, 0.0, 0.0, 1.0);
}
# First, figure out z-coordinates for projection of P1 and P2 to
# deformed sphere
my @p1 = ($p1x, $p1y, project_to_sphere(TRACKBALLSIZE, $p1x, $p1y));
my @p2 = ($p2x, $p2y, project_to_sphere(TRACKBALLSIZE, $p2x, $p2y));
# axis of rotation (cross product of P1 and P2)
my @a = cross(\@p2, \@p1);
# Figure out how much to rotate around that axis.
my @d = map { $_ * $_ } (map { $p1[$_] - $p2[$_] } 0 .. $#p1);
my $t = sqrt(reduce { $a + $b } @d) / (2.0 * TRACKBALLSIZE);
# Avoid problems with out-of-control values...
$t = 1.0 if ($t > 1.0);
$t = -1.0 if ($t < -1.0);
my $phi = 2.0 * asin($t);
return axis_to_quat(\@a, $phi);
}
# Build a rotation matrix, given a quaternion rotation.
sub quat_to_rotmatrix {
my ($q) = @_;
my @m = ();
$m[0] = 1.0 - 2.0 * (@$q[1] * @$q[1] + @$q[2] * @$q[2]);
$m[1] = 2.0 * (@$q[0] * @$q[1] - @$q[2] * @$q[3]);
$m[2] = 2.0 * (@$q[2] * @$q[0] + @$q[1] * @$q[3]);
$m[3] = 0.0;
$m[4] = 2.0 * (@$q[0] * @$q[1] + @$q[2] * @$q[3]);
$m[5] = 1.0 - 2.0 * (@$q[2] * @$q[2] + @$q[0] * @$q[0]);
$m[6] = 2.0 * (@$q[1] * @$q[2] - @$q[0] * @$q[3]);
$m[7] = 0.0;
$m[8] = 2.0 * (@$q[2] * @$q[0] - @$q[1] * @$q[3]);
$m[9] = 2.0 * (@$q[1] * @$q[2] + @$q[0] * @$q[3]);
$m[10] = 1.0 - 2.0 * (@$q[1] * @$q[1] + @$q[0] * @$q[0]);
$m[11] = 0.0;
$m[12] = 0.0;
$m[13] = 0.0;
$m[14] = 0.0;
$m[15] = 1.0;
return @m;
}
sub mulquats {
my ($q1, $rq) = @_;
return (@$q1[3] * @$rq[0] + @$q1[0] * @$rq[3] + @$q1[1] * @$rq[2] - @$q1[2] * @$rq[1],
@$q1[3] * @$rq[1] + @$q1[1] * @$rq[3] + @$q1[2] * @$rq[0] - @$q1[0] * @$rq[2],
@$q1[3] * @$rq[2] + @$q1[2] * @$rq[3] + @$q1[0] * @$rq[1] - @$q1[1] * @$rq[0],
@$q1[3] * @$rq[3] - @$q1[0] * @$rq[0] - @$q1[1] * @$rq[1] - @$q1[2] * @$rq[2])
}
sub mouse_to_3d {
my ($self, $x, $y, $z) = @_;
my @viewport = glGetIntegerv_p(GL_VIEWPORT); # 4 items
my @mview = glGetDoublev_p(GL_MODELVIEW_MATRIX); # 16 items
my @proj = glGetDoublev_p(GL_PROJECTION_MATRIX); # 16 items
$y = $viewport[3] - $y;
$z //= glReadPixels_p($x, $y, 1, 1, GL_DEPTH_COMPONENT, GL_FLOAT);
my @projected = gluUnProject_p($x, $y, $z, @mview, @proj, @viewport);
return Slic3r::Pointf3->new(@projected);
}
sub mouse_ray {
my ($self, $x, $y) = @_;
return Slic3r::Linef3->new(
$self->mouse_to_3d($x, $y, 0),
$self->mouse_to_3d($x, $y, 1),
);
}
sub GetContext {
my ($self) = @_;
if (Wx::wxVERSION >= 2.009) {
return $self->{context} ||= Wx::GLContext->new($self);
} else {
return $self->SUPER::GetContext;
}
}
sub SetCurrent {
my ($self, $context) = @_;
if (Wx::wxVERSION >= 2.009) {
return $self->SUPER::SetCurrent($context);
} else {
return $self->SUPER::SetCurrent;
}
}
sub Resize {
my ($self, $x, $y) = @_;
return unless $self->GetContext;
$self->_dirty(0);
$self->SetCurrent($self->GetContext);
glViewport(0, 0, $x, $y);
$x /= $self->_zoom;
$y /= $self->_zoom;
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
my $depth = 10 * max(@{ $self->max_bounding_box->size });
glOrtho(
-$x/2, $x/2, -$y/2, $y/2,
-$depth, 2*$depth,
);
glMatrixMode(GL_MODELVIEW);
}
sub InitGL {
my $self = shift;
return if $self->init;
return unless $self->GetContext;
$self->init(1);
glClearColor(0, 0, 0, 1);
glColor3f(1, 0, 0);
glEnable(GL_DEPTH_TEST);
glClearDepth(1.0);
glDepthFunc(GL_LEQUAL);
glEnable(GL_CULL_FACE);
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
# Set antialiasing/multisampling
glDisable(GL_LINE_SMOOTH);
glDisable(GL_POLYGON_SMOOTH);
glEnable(GL_MULTISAMPLE);
# ambient lighting
glLightModelfv_p(GL_LIGHT_MODEL_AMBIENT, 0.3, 0.3, 0.3, 1);
glEnable(GL_LIGHTING);
glEnable(GL_LIGHT0);
glEnable(GL_LIGHT1);
# light from camera
glLightfv_p(GL_LIGHT1, GL_POSITION, 1, 0, 1, 0);
glLightfv_p(GL_LIGHT1, GL_SPECULAR, 0.3, 0.3, 0.3, 1);
glLightfv_p(GL_LIGHT1, GL_DIFFUSE, 0.2, 0.2, 0.2, 1);
# Enables Smooth Color Shading; try GL_FLAT for (lack of) fun.
glShadeModel(GL_SMOOTH);
glMaterialfv_p(GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE, 0.5, 0.3, 0.3, 1);
glMaterialfv_p(GL_FRONT_AND_BACK, GL_SPECULAR, 1, 1, 1, 1);
glMaterialf(GL_FRONT_AND_BACK, GL_SHININESS, 50);
glMaterialfv_p(GL_FRONT_AND_BACK, GL_EMISSION, 0.1, 0, 0, 0.9);
# A handy trick -- have surface material mirror the color.
glColorMaterial(GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE);
glEnable(GL_COLOR_MATERIAL);
glEnable(GL_MULTISAMPLE);
}
sub Render {
my ($self, $dc) = @_;
# prevent calling SetCurrent() when window is not shown yet
return unless $self->IsShownOnScreen;
return unless my $context = $self->GetContext;
$self->SetCurrent($context);
$self->InitGL;
glClearColor(1, 1, 1, 1);
glClearDepth(1);
glDepthFunc(GL_LESS);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
if (TURNTABLE_MODE) {
glRotatef(-$self->_stheta, 1, 0, 0); # pitch
glRotatef($self->_sphi, 0, 0, 1); # yaw
} else {
my @rotmat = quat_to_rotmatrix($self->quat);
glMultMatrixd_p(@rotmat[0..15]);
}
glTranslatef(@{ $self->_camera_target->negative });
# light from above
glLightfv_p(GL_LIGHT0, GL_POSITION, -0.5, -0.5, 1, 0);
glLightfv_p(GL_LIGHT0, GL_SPECULAR, 0.2, 0.2, 0.2, 1);
glLightfv_p(GL_LIGHT0, GL_DIFFUSE, 0.5, 0.5, 0.5, 1);
if ($self->enable_picking) {
glDisable(GL_LIGHTING);
$self->draw_volumes(1);
glFlush();
glFinish();
if (my $pos = $self->_mouse_pos) {
my $col = [ glReadPixels_p($pos->x, $self->GetSize->GetHeight - $pos->y, 1, 1, GL_RGBA, GL_UNSIGNED_BYTE) ];
my $volume_idx = $col->[0] + $col->[1]*256 + $col->[2]*256*256;
$self->_hover_volume_idx(undef);
$_->hover(0) for @{$self->volumes};
if ($volume_idx <= $#{$self->volumes}) {
$self->_hover_volume_idx($volume_idx);
$self->volumes->[$volume_idx]->hover(1);
my $group_id = $self->volumes->[$volume_idx]->select_group_id;
if ($group_id != -1) {
$_->hover(1) for grep { $_->select_group_id == $group_id } @{$self->volumes};
}
$self->on_hover->($volume_idx) if $self->on_hover;
}
}
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glFlush();
glFinish();
glEnable(GL_LIGHTING);
}
# draw fixed background
if ($self->background) {
glDisable(GL_LIGHTING);
glPushMatrix();
glLoadIdentity();
glMatrixMode(GL_PROJECTION);
glPushMatrix();
glLoadIdentity();
glBegin(GL_QUADS);
glColor3f(0.0,0.0,0.0);
glVertex2f(-1.0,-1.0);
glVertex2f(1,-1.0);
glColor3f(10/255,98/255,144/255);
glVertex2f(1, 1);
glVertex2f(-1.0, 1);
glEnd();
glPopMatrix();
glMatrixMode(GL_MODELVIEW);
glPopMatrix();
glEnable(GL_LIGHTING);
}
# draw ground and axes
glDisable(GL_LIGHTING);
# draw ground
my $ground_z = GROUND_Z;
if ($self->bed_triangles) {
glDisable(GL_DEPTH_TEST);
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glEnableClientState(GL_VERTEX_ARRAY);
glColor4f(0.8, 0.6, 0.5, 0.4);
glNormal3d(0,0,1);
glVertexPointer_p(3, $self->bed_triangles);
glDrawArrays(GL_TRIANGLES, 0, $self->bed_triangles->elements / 3);
glDisableClientState(GL_VERTEX_ARRAY);
# we need depth test for grid, otherwise it would disappear when looking
# the object from below
glEnable(GL_DEPTH_TEST);
# draw grid
glLineWidth(3);
glColor4f(0.2, 0.2, 0.2, 0.4);
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);
glDisable(GL_BLEND);
}
my $volumes_bb = $self->volumes_bounding_box;
{
# draw axes
# disable depth testing so that axes are not covered by ground
glDisable(GL_DEPTH_TEST);
my $origin = $self->origin;
my $axis_len = max(
0.3 * max(@{ $self->bed_bounding_box->size }),
2 * max(@{ $volumes_bb->size }),
);
glLineWidth(2);
glBegin(GL_LINES);
# draw line for x axis
glColor3f(1, 0, 0);
glVertex3f(@$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, $ground_z); #++
glEnd();
# draw line for Z axis
# (re-enable depth test so that axis is correctly shown when objects are behind it)
glEnable(GL_DEPTH_TEST);
glBegin(GL_LINES);
glColor3f(0, 0, 1);
glVertex3f(@$origin, $ground_z);
glVertex3f(@$origin, $ground_z+$axis_len);
glEnd();
}
glEnable(GL_LIGHTING);
# draw objects
$self->draw_volumes;
# draw cutting plane
if (defined $self->cutting_plane_z) {
my $plane_z = $self->cutting_plane_z;
my $bb = $volumes_bb;
glDisable(GL_CULL_FACE);
glDisable(GL_LIGHTING);
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glBegin(GL_QUADS);
glColor4f(0.8, 0.8, 0.8, 0.5);
glVertex3f($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);
}
glFlush();
$self->SwapBuffers();
}
sub draw_volumes {
my ($self, $fakecolor) = @_;
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glEnableClientState(GL_VERTEX_ARRAY);
glEnableClientState(GL_NORMAL_ARRAY);
foreach my $volume_idx (0..$#{$self->volumes}) {
my $volume = $self->volumes->[$volume_idx];
glPushMatrix();
glTranslatef(@{$volume->origin});
if ($fakecolor) {
my $r = ($volume_idx & 0x000000FF) >> 0;
my $g = ($volume_idx & 0x0000FF00) >> 8;
my $b = ($volume_idx & 0x00FF0000) >> 16;
glColor4f($r/255.0, $g/255.0, $b/255.0, 1);
} elsif ($volume->selected) {
glColor4f(@{ &SELECTED_COLOR });
} elsif ($volume->hover) {
glColor4f(@{ &HOVER_COLOR });
} else {
glColor4f(@{ $volume->color });
}
my @sorted_z = ();
my ($min_z, $max_z);
if ($volume->range && $volume->offsets) {
@sorted_z = sort { $a <=> $b } keys %{$volume->offsets};
($min_z, $max_z) = @{$volume->range};
$min_z = first { $_ >= $min_z } @sorted_z;
$max_z = first { $_ > $max_z } @sorted_z;
}
glCullFace(GL_BACK);
if ($volume->qverts) {
my ($min_offset, $max_offset);
if (defined $min_z) {
$min_offset = $volume->offsets->{$min_z}->[0];
}
if (defined $max_z) {
$max_offset = $volume->offsets->{$max_z}->[0];
}
$min_offset //= 0;
$max_offset //= $volume->qverts->size;
glVertexPointer_c(3, GL_FLOAT, 0, $volume->qverts->verts_ptr);
glNormalPointer_c(GL_FLOAT, 0, $volume->qverts->norms_ptr);
glDrawArrays(GL_QUADS, $min_offset / 3, ($max_offset-$min_offset) / 3);
}
if ($volume->tverts) {
my ($min_offset, $max_offset);
if (defined $min_z) {
$min_offset = $volume->offsets->{$min_z}->[1];
}
if (defined $max_z) {
$max_offset = $volume->offsets->{$max_z}->[1];
}
$min_offset //= 0;
$max_offset //= $volume->tverts->size;
glVertexPointer_c(3, GL_FLOAT, 0, $volume->tverts->verts_ptr);
glNormalPointer_c(GL_FLOAT, 0, $volume->tverts->norms_ptr);
glDrawArrays(GL_TRIANGLES, $min_offset / 3, ($max_offset-$min_offset) / 3);
}
glPopMatrix();
}
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, $self->cut_lines_vertices->elements / 3);
}
glDisableClientState(GL_VERTEX_ARRAY);
}
package Slic3r::GUI::3DScene::Volume;
use Moo;
has 'bounding_box' => (is => 'ro', required => 1);
has 'origin' => (is => 'rw', default => sub { Slic3r::Pointf3->new(0,0,0) });
has 'color' => (is => 'ro', required => 1);
has 'select_group_id' => (is => 'rw', default => sub { -1 });
has 'drag_group_id' => (is => 'rw', default => sub { -1 });
has 'selected' => (is => 'rw', default => sub { 0 });
has 'hover' => (is => 'rw', default => sub { 0 });
has 'range' => (is => 'rw');
# geometric data
has 'qverts' => (is => 'rw'); # GLVertexArray object
has 'tverts' => (is => 'rw'); # GLVertexArray object
has 'mesh' => (is => 'rw'); # only required for cut contours
has 'offsets' => (is => 'rw'); # [ z => [ qverts_idx, tverts_idx ] ]
sub transformed_bounding_box {
my ($self) = @_;
my $bb = $self->bounding_box;
$bb->translate(@{$self->origin});
return $bb;
}
package Slic3r::GUI::3DScene;
use base qw(Slic3r::GUI::3DScene::Base);
use OpenGL qw(:glconstants :gluconstants :glufunctions);
use List::Util qw(first min max);
use Slic3r::Geometry qw(scale unscale epsilon);
use Slic3r::Print::State ':steps';
use constant COLORS => [ [1,1,0,1], [1,0.5,0.5,1], [0.5,1,0.5,1], [0.5,0.5,1,1] ];
__PACKAGE__->mk_accessors(qw(
color_by
select_by
drag_by
volumes_by_object
_objects_by_volumes
));
sub new {
my $class = shift;
my $self = $class->SUPER::new(@_);
$self->color_by('volume'); # object | volume
$self->select_by('object'); # object | volume | instance
$self->drag_by('instance'); # object | instance
$self->volumes_by_object({}); # obj_idx => [ volume_idx, volume_idx ... ]
$self->_objects_by_volumes({}); # volume_idx => [ obj_idx, instance_idx ]
return $self;
}
sub load_object {
my ($self, $model, $obj_idx, $instance_idxs) = @_;
my $model_object;
if ($model->isa('Slic3r::Model::Object')) {
$model_object = $model;
$model = $model_object->model;
$obj_idx = 0;
} else {
$model_object = $model->get_object($obj_idx);
}
$instance_idxs ||= [0..$#{$model_object->instances}];
my @volumes_idx = ();
foreach my $volume_idx (0..$#{$model_object->volumes}) {
my $volume = $model_object->volumes->[$volume_idx];
foreach my $instance_idx (@$instance_idxs) {
my $instance = $model_object->instances->[$instance_idx];
my $mesh = $volume->mesh->clone;
$instance->transform_mesh($mesh);
my $color_idx;
if ($self->color_by eq 'volume') {
$color_idx = $volume_idx;
} elsif ($self->color_by eq 'object') {
$color_idx = $obj_idx;
}
my $color = [ @{COLORS->[ $color_idx % scalar(@{&COLORS}) ]} ];
$color->[3] = $volume->modifier ? 0.5 : 1;
push @{$self->volumes}, my $v = Slic3r::GUI::3DScene::Volume->new(
bounding_box => $mesh->bounding_box,
color => $color,
);
$v->mesh($mesh) if $self->enable_cutting;
if ($self->select_by eq 'object') {
$v->select_group_id($obj_idx*1000000);
} elsif ($self->select_by eq 'volume') {
$v->select_group_id($obj_idx*1000000 + $volume_idx*1000);
} elsif ($self->select_by eq 'instance') {
$v->select_group_id($obj_idx*1000000 + $volume_idx*1000 + $instance_idx);
}
if ($self->drag_by eq 'object') {
$v->drag_group_id($obj_idx*1000);
} elsif ($self->drag_by eq 'instance') {
$v->drag_group_id($obj_idx*1000 + $instance_idx);
}
push @volumes_idx, my $scene_volume_idx = $#{$self->volumes};
$self->_objects_by_volumes->{$scene_volume_idx} = [ $obj_idx, $volume_idx, $instance_idx ];
my $verts = Slic3r::GUI::_3DScene::GLVertexArray->new;
$verts->load_mesh($mesh);
$v->tverts($verts);
}
}
$self->volumes_by_object->{$obj_idx} = [@volumes_idx];
return @volumes_idx;
}
sub load_print_object_slices {
my ($self, $object) = @_;
my @verts = ();
my @norms = ();
my @quad_verts = ();
my @quad_norms = ();
foreach my $layer (@{$object->layers}) {
my $gap = 0;
my $top_z = $layer->print_z;
my $bottom_z = $layer->print_z - $layer->height + $gap;
foreach my $copy (@{ $object->_shifted_copies }) {
{
my @expolygons = map $_->clone, @{$layer->slices};
$_->translate(@$copy) for @expolygons;
$self->_expolygons_to_verts(\@expolygons, $layer->print_z, \@verts, \@norms);
}
foreach my $slice (@{$layer->slices}) {
foreach my $polygon (@$slice) {
foreach my $line (@{$polygon->lines}) {
$line->translate(@$copy);
push @quad_norms, (0,0,-1), (0,0,-1);
push @quad_verts, (map unscale($_), @{$line->a}), $bottom_z;
push @quad_verts, (map unscale($_), @{$line->b}), $bottom_z;
push @quad_norms, (0,0,1), (0,0,1);
push @quad_verts, (map unscale($_), @{$line->b}), $top_z;
push @quad_verts, (map unscale($_), @{$line->a}), $top_z;
# We'll use this for the middle normal when using 4 quads:
#my $xy_normal = $line->normal;
#$_xynormal->scale(1/$line->length);
}
}
}
}
}
my $obb = $object->bounding_box;
my $bb = Slic3r::Geometry::BoundingBoxf3->new;
$bb->merge_point(Slic3r::Pointf3->new_unscale(@{$obb->min_point}, 0));
$bb->merge_point(Slic3r::Pointf3->new_unscale(@{$obb->max_point}, $object->size->z));
push @{$self->volumes}, my $v = Slic3r::GUI::3DScene::Volume->new(
bounding_box => $bb,
color => COLORS->[0],
verts => OpenGL::Array->new_list(GL_FLOAT, @verts),
norms => OpenGL::Array->new_list(GL_FLOAT, @norms),
quad_verts => OpenGL::Array->new_list(GL_FLOAT, @quad_verts),
quad_norms => OpenGL::Array->new_list(GL_FLOAT, @quad_norms),
);
}
sub load_print_toolpaths {
my ($self, $print) = @_;
return if !$print->step_done(STEP_SKIRT);
return if !$print->step_done(STEP_BRIM);
return if !$print->has_skirt && $print->config->brim_width == 0;
my $qverts = Slic3r::GUI::_3DScene::GLVertexArray->new;
my $tverts = Slic3r::GUI::_3DScene::GLVertexArray->new;
my %offsets = (); # print_z => [ qverts, tverts ]
my $skirt_height = 0; # number of layers
if ($print->has_infinite_skirt) {
$skirt_height = $print->total_layer_count;
} else {
$skirt_height = min($print->config->skirt_height, $print->total_layer_count);
}
$skirt_height ||= 1 if $print->config->brim_width > 0;
# get first $skirt_height layers (maybe this should be moved to a PrintObject method?)
my $object0 = $print->get_object(0);
my @layers = ();
push @layers, map $object0->get_layer($_-1), 1..min($skirt_height, $object0->layer_count);
push @layers, map $object0->get_support_layer($_-1), 1..min($skirt_height, $object0->support_layer_count);
@layers = sort { $a->print_z <=> $b->print_z } @layers;
@layers = @layers[0..($skirt_height-1)];
foreach my $i (0..($skirt_height-1)) {
my $top_z = $layers[$i]->print_z;
$offsets{$top_z} = [$qverts->size, $tverts->size];
if ($i == 0) {
$self->_extrusionentity_to_verts($print->brim, $top_z, Slic3r::Point->new(0,0), $qverts, $tverts);
}
$self->_extrusionentity_to_verts($print->skirt, $top_z, Slic3r::Point->new(0,0), $qverts, $tverts);
}
my $bb = Slic3r::Geometry::BoundingBoxf3->new;
{
my $pbb = $print->bounding_box;
$bb->merge_point(Slic3r::Pointf3->new_unscale(@{$pbb->min_point}));
$bb->merge_point(Slic3r::Pointf3->new_unscale(@{$pbb->max_point}));
}
push @{$self->volumes}, Slic3r::GUI::3DScene::Volume->new(
bounding_box => $bb,
color => COLORS->[2],
qverts => $qverts,
tverts => $tverts,
offsets => { %offsets },
);
}
sub load_print_object_toolpaths {
my ($self, $object) = @_;
my $perim_qverts = Slic3r::GUI::_3DScene::GLVertexArray->new;
my $perim_tverts = Slic3r::GUI::_3DScene::GLVertexArray->new;
my $infill_qverts = Slic3r::GUI::_3DScene::GLVertexArray->new;
my $infill_tverts = Slic3r::GUI::_3DScene::GLVertexArray->new;
my $support_qverts = Slic3r::GUI::_3DScene::GLVertexArray->new;
my $support_tverts = Slic3r::GUI::_3DScene::GLVertexArray->new;
my %perim_offsets = (); # print_z => [ qverts, tverts ]
my %infill_offsets = ();
my %support_offsets = ();
# order layers by print_z
my @layers = sort { $a->print_z <=> $b->print_z }
@{$object->layers}, @{$object->support_layers};
foreach my $layer (@layers) {
my $top_z = $layer->print_z;
if (!exists $perim_offsets{$top_z}) {
$perim_offsets{$top_z} = [
$perim_qverts->size, $perim_tverts->size,
];
$infill_offsets{$top_z} = [
$infill_qverts->size, $infill_tverts->size,
];
$support_offsets{$top_z} = [
$support_qverts->size, $support_tverts->size,
];
}
foreach my $copy (@{ $object->_shifted_copies }) {
foreach my $layerm (@{$layer->regions}) {
if ($object->step_done(STEP_PERIMETERS)) {
$self->_extrusionentity_to_verts($layerm->perimeters, $top_z, $copy,
$perim_qverts, $perim_tverts);
}
if ($object->step_done(STEP_INFILL)) {
$self->_extrusionentity_to_verts($layerm->fills, $top_z, $copy,
$infill_qverts, $infill_tverts);
}
}
if ($layer->isa('Slic3r::Layer::Support') && $object->step_done(STEP_SUPPORTMATERIAL)) {
$self->_extrusionentity_to_verts($layer->support_fills, $top_z, $copy,
$support_qverts, $support_tverts);
$self->_extrusionentity_to_verts($layer->support_interface_fills, $top_z, $copy,
$support_qverts, $support_tverts);
}
}
}
my $obb = $object->bounding_box;
my $bb = Slic3r::Geometry::BoundingBoxf3->new;
foreach my $copy (@{ $object->_shifted_copies }) {
my $cbb = $obb->clone;
$cbb->translate(@$copy);
$bb->merge_point(Slic3r::Pointf3->new_unscale(@{$cbb->min_point}, 0));
$bb->merge_point(Slic3r::Pointf3->new_unscale(@{$cbb->max_point}, $object->size->z));
}
push @{$self->volumes}, Slic3r::GUI::3DScene::Volume->new(
bounding_box => $bb,
color => COLORS->[0],
qverts => $perim_qverts,
tverts => $perim_tverts,
offsets => { %perim_offsets },
);
push @{$self->volumes}, Slic3r::GUI::3DScene::Volume->new(
bounding_box => $bb,
color => COLORS->[1],
qverts => $infill_qverts,
tverts => $infill_tverts,
offsets => { %infill_offsets },
);
push @{$self->volumes}, Slic3r::GUI::3DScene::Volume->new(
bounding_box => $bb,
color => COLORS->[2],
qverts => $support_qverts,
tverts => $support_tverts,
offsets => { %support_offsets },
);
}
sub set_toolpaths_range {
my ($self, $min_z, $max_z) = @_;
foreach my $volume (@{$self->volumes}) {
$volume->range([ $min_z, $max_z ]);
}
}
sub _expolygons_to_verts {
my ($self, $expolygons, $z, $verts, $norms) = @_;
my $tess = gluNewTess();
gluTessCallback($tess, GLU_TESS_BEGIN, 'DEFAULT');
gluTessCallback($tess, GLU_TESS_END, 'DEFAULT');
gluTessCallback($tess, GLU_TESS_VERTEX, sub {
my ($x, $y, $z) = @_;
push @$verts, $x, $y, $z;
push @$norms, (0,0,1), (0,0,1), (0,0,1);
});
gluTessCallback($tess, GLU_TESS_COMBINE, 'DEFAULT');
gluTessCallback($tess, GLU_TESS_ERROR, 'DEFAULT');
gluTessCallback($tess, GLU_TESS_EDGE_FLAG, 'DEFAULT');
foreach my $expolygon (@$expolygons) {
gluTessBeginPolygon($tess);
foreach my $polygon (@$expolygon) {
gluTessBeginContour($tess);
gluTessVertex_p($tess, (map unscale($_), @$_), $z) for @$polygon;
gluTessEndContour($tess);
}
gluTessEndPolygon($tess);
}
gluDeleteTess($tess);
}
sub _extrusionentity_to_verts {
my ($self, $entity, $top_z, $copy, $qverts, $tverts) = @_;
my ($lines, $widths, $heights, $closed);
if ($entity->isa('Slic3r::ExtrusionPath::Collection')) {
$self->_extrusionentity_to_verts($_, $top_z, $copy, $qverts, $tverts)
for @$entity;
return;
} elsif ($entity->isa('Slic3r::ExtrusionPath')) {
my $polyline = $entity->polyline->clone;
$polyline->remove_duplicate_points;
$polyline->translate(@$copy);
$lines = $polyline->lines;
$widths = [ map $entity->width, 0..$#$lines ];
$heights = [ map $entity->height, 0..$#$lines ];
$closed = 0;
} else {
$lines = [];
$widths = [];
$heights = [];
$closed = 1;
foreach my $path (@$entity) {
my $polyline = $path->polyline->clone;
$polyline->remove_duplicate_points;
$polyline->translate(@$copy);
my $path_lines = $polyline->lines;
push @$lines, @$path_lines;
push @$widths, map $path->width, 0..$#$path_lines;
push @$heights, map $path->height, 0..$#$path_lines;
}
}
Slic3r::GUI::_3DScene::_extrusionentity_to_verts_do($lines, $widths, $heights,
$closed, $top_z, $copy, $qverts, $tverts);
}
sub object_idx {
my ($self, $volume_idx) = @_;
return $self->_objects_by_volumes->{$volume_idx}[0];
}
sub volume_idx {
my ($self, $volume_idx) = @_;
return $self->_objects_by_volumes->{$volume_idx}[1];
}
sub instance_idx {
my ($self, $volume_idx) = @_;
return $self->_objects_by_volumes->{$volume_idx}[2];
}
1;