Join extrusions properly in 3D preview
This commit is contained in:
Alessandro Ranellucci
parent
ce1d368037
commit
d781371d66
@ -1041,8 +1041,7 @@ sub load_print_object_slices {
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sub load_print_object_toolpaths {
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my ($self, $object) = @_;
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my @quad_verts = ();
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my @quad_norms = ();
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my (@qverts, @qnorms, @tverts, @tnorms) = ();
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foreach my $layer (@{$object->layers}) {
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my $top_z = $layer->print_z;
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my $bottom_z = $layer->print_z - $layer->height;
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@ -1051,9 +1050,9 @@ sub load_print_object_toolpaths {
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foreach my $layerm (@{$layer->regions}) {
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foreach my $entity (map @$_, @{$layerm->perimeters}) {
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if ($entity->isa('Slic3r::ExtrusionPath')) {
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$self->_extrusionpath_to_verts($entity, $top_z, $copy, \@quad_verts, \@quad_norms);
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$self->_extrusionpath_to_verts($entity, $top_z, $copy, \@qverts, \@qnorms, \@tverts, \@tnorms);
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} else {
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$self->_extrusionpath_to_verts($_, $top_z, $copy, \@quad_verts, \@quad_norms) for @$entity;
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$self->_extrusionloop_to_verts($entity, $top_z, $copy, \@qverts, \@qnorms, \@tverts, \@tnorms);
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}
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}
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}
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@ -1068,8 +1067,10 @@ sub load_print_object_toolpaths {
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push @{$self->volumes}, my $v = Slic3r::GUI::3DScene::Volume->new(
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bounding_box => $bb,
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color => COLORS->[0],
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quad_verts => OpenGL::Array->new_list(GL_FLOAT, @quad_verts),
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quad_norms => OpenGL::Array->new_list(GL_FLOAT, @quad_norms),
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quad_verts => OpenGL::Array->new_list(GL_FLOAT, @qverts),
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quad_norms => OpenGL::Array->new_list(GL_FLOAT, @qnorms),
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verts => OpenGL::Array->new_list(GL_FLOAT, @tverts),
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norms => OpenGL::Array->new_list(GL_FLOAT, @tnorms),
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);
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}
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@ -1102,19 +1103,54 @@ sub _expolygons_to_verts {
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}
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sub _extrusionpath_to_verts {
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my ($self, $path, $top_z, $copy, $verts, $norms) = @_;
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my ($self, $path, $top_z, $copy, $qverts, $qnorms, $tverts, $tnorms) = @_;
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my $bottom_z = $top_z - $path->height;
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my $middle_z = ($top_z + $bottom_z) / 2;
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my $dist = scale $path->width/2;
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my $polyline = $path->polyline->clone;
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$polyline->translate(@$copy);
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my $lines = $polyline->lines;
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my $widths = [ map scale($path->width), 0..$#$lines ];
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my $heights = [ map $path->height, 0..$#$lines ];
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$self->_extrusionentity_to_verts($lines, $widths, $heights, 0, $top_z, $qverts, $qnorms, $tverts, $tnorms);
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}
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sub _extrusionloop_to_verts {
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my ($self, $loop, $top_z, $copy, $qverts, $qnorms, $tverts, $tnorms) = @_;
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my $lines = [];
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my $widths = [];
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my $heights = [];
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foreach my $path (@$loop) {
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my $polyline = $path->polyline->clone;
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$polyline->translate(@$copy);
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my $path_lines = $polyline->lines;
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push @$lines, @$path_lines;
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push @$widths, map scale($path->width), 0..$#$path_lines;
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push @$heights, map $path->height, 0..$#$path_lines;
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}
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$self->_extrusionentity_to_verts($lines, $widths, $heights, 1, $top_z, $qverts, $qnorms, $tverts, $tnorms);
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}
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sub _extrusionentity_to_verts {
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my ($self, $lines, $widths, $heights, $closed, $top_z, $qverts, $qnorms, $tverts, $tnorms) = @_;
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my ($prev_line, $prev_b1, $prev_b2, $prev_xy_left_normal, $prev_xy_right_normal);
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# loop once more in case of closed loops
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my $first_done = 0;
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for my $i (0..$#$lines, 0) {
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my $line = $lines->[$i];
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last if $i == 0 && $first_done && !$closed;
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foreach my $line (@{$path->polyline->lines}) {
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my $len = $line->length;
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my $unscaled_len = unscale $len;
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next if $len == 0;
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$line->translate(@$copy);
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my $bottom_z = $top_z - $heights->[$i];
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my $middle_z = ($top_z + $bottom_z) / 2;
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my $dist = $widths->[$i]/2; # scaled
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my $v = Slic3r::Pointf3->new_unscale(@{$line->vector});
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$v->scale(1/unscale $len);
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$v->scale(1/$unscaled_len);
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my $a = $line->a;
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my $b = $line->b;
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@ -1127,58 +1163,169 @@ sub _extrusionpath_to_verts {
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$b1->translate(+$dist*$v->y, -$dist*$v->x); #,,
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$b2->translate(-$dist*$v->y, +$dist*$v->x); #,,
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# calculate normal going to the right
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my $xy_normal = Slic3r::Pointf3->new_unscale(@{$line->normal}, 0);
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$xy_normal->scale(1/unscale $len);
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# calculate new XY normals
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my $xy_right_normal = Slic3r::Pointf3->new_unscale(@{$line->normal}, 0);
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$xy_right_normal->scale(1/$unscaled_len);
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my $xy_left_normal = $xy_right_normal->clone;
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$xy_left_normal->scale(-1);
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if ($first_done) {
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# if we're making a ccw turn, draw the triangles on the right side, otherwise draw them on the left side
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if ($b->ccw(@$prev_line) > 0) {
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# top-right vertex triangle between previous line and this one
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{
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# use the normal going to the right calculated for the previous line
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push @$tnorms, @$prev_xy_right_normal;
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push @$tverts, (map unscale($_), @$prev_b1), $middle_z;
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# use the normal going to the right calculated for this line
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push @$tnorms, @$xy_right_normal;
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push @$tverts, (map unscale($_), @$a1), $middle_z;
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# normal going upwards
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push @$tnorms, (0,0,1);
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push @$tverts, (map unscale($_), @$a), $top_z;
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}
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# bottom-right vertex triangle between previous line and this one
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{
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# use the normal going to the right calculated for the previous line
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push @$tnorms, @$prev_xy_right_normal;
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push @$tverts, (map unscale($_), @$prev_b1), $middle_z;
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# normal going downwards
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push @$tnorms, (0,0,-1);
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push @$tverts, (map unscale($_), @$a), $bottom_z;
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# use the normal going to the right calculated for this line
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push @$tnorms, @$xy_right_normal;
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push @$tverts, (map unscale($_), @$a1), $middle_z;
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}
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} else {
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# top-left vertex triangle between previous line and this one
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{
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# use the normal going to the left calculated for the previous line
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push @$tnorms, @$prev_xy_left_normal;
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push @$tverts, (map unscale($_), @$prev_b2), $middle_z;
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# normal going upwards
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push @$tnorms, (0,0,1);
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push @$tverts, (map unscale($_), @$a), $top_z;
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# use the normal going to the right calculated for this line
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push @$tnorms, @$xy_left_normal;
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push @$tverts, (map unscale($_), @$a2), $middle_z;
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}
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# bottom-left vertex triangle between previous line and this one
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{
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# use the normal going to the left calculated for the previous line
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push @$tnorms, @$prev_xy_left_normal;
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push @$tverts, (map unscale($_), @$prev_b2), $middle_z;
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# use the normal going to the right calculated for this line
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push @$tnorms, @$xy_left_normal;
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push @$tverts, (map unscale($_), @$a2), $middle_z;
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# normal going downwards
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push @$tnorms, (0,0,-1);
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push @$tverts, (map unscale($_), @$a), $bottom_z;
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}
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}
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}
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# if this was the extra iteration we were only interested in the triangles
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last if $first_done && $i == 0;
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$prev_line = $line;
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$prev_b1 = $b1;
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$prev_b2 = $b2;
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$prev_xy_right_normal = $xy_right_normal;
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$prev_xy_left_normal = $xy_left_normal;
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if (!$closed) {
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# terminate open paths with caps
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if ($i == 0) {
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# normal pointing downwards
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push @$qnorms, (0,0,-1);
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push @$qverts, (map unscale($_), @$a), $bottom_z;
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# normal pointing to the right
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push @$qnorms, @$xy_right_normal;
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push @$qverts, (map unscale($_), @$a1), $middle_z;
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# normal pointing upwards
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push @$qnorms, (0,0,1);
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push @$qverts, (map unscale($_), @$a), $top_z;
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# normal pointing to the left
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push @$qnorms, @$xy_left_normal;
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push @$qverts, (map unscale($_), @$a2), $middle_z;
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} elsif ($i == $#$lines) {
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# normal pointing downwards
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push @$qnorms, (0,0,-1);
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push @$qverts, (map unscale($_), @$b), $bottom_z;
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# normal pointing to the left
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push @$qnorms, @$xy_left_normal;
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push @$qverts, (map unscale($_), @$b2), $middle_z;
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# normal pointing upwards
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push @$qnorms, (0,0,1);
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push @$qverts, (map unscale($_), @$b), $top_z;
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# normal pointing to the right
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push @$qnorms, @$xy_right_normal;
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push @$qverts, (map unscale($_), @$b1), $middle_z;
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}
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}
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# bottom-right face
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{
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# normal going downwards
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push @$norms, (0,0,-1), (0,0,-1);
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push @$verts, (map unscale($_), @$a), $bottom_z;
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push @$verts, (map unscale($_), @$b), $bottom_z;
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push @$qnorms, (0,0,-1), (0,0,-1);
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push @$qverts, (map unscale($_), @$a), $bottom_z;
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push @$qverts, (map unscale($_), @$b), $bottom_z;
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push @$norms, @$xy_normal, @$xy_normal;
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push @$verts, (map unscale($_), @$b1), $middle_z;
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push @$verts, (map unscale($_), @$a1), $middle_z;
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push @$qnorms, @$xy_right_normal, @$xy_right_normal;
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push @$qverts, (map unscale($_), @$b1), $middle_z;
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push @$qverts, (map unscale($_), @$a1), $middle_z;
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}
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# top-right face
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{
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push @$norms, @$xy_normal, @$xy_normal;
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push @$verts, (map unscale($_), @$a1), $middle_z;
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push @$verts, (map unscale($_), @$b1), $middle_z;
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push @$qnorms, @$xy_right_normal, @$xy_right_normal;
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push @$qverts, (map unscale($_), @$a1), $middle_z;
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push @$qverts, (map unscale($_), @$b1), $middle_z;
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# normal going upwards
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push @$norms, (0,0,1), (0,0,1);
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push @$verts, (map unscale($_), @$b), $top_z;
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push @$verts, (map unscale($_), @$a), $top_z;
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push @$qnorms, (0,0,1), (0,0,1);
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push @$qverts, (map unscale($_), @$b), $top_z;
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push @$qverts, (map unscale($_), @$a), $top_z;
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}
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# top-left face
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{
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push @$norms, (0,0,1), (0,0,1);
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push @$verts, (map unscale($_), @$a), $top_z;
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push @$verts, (map unscale($_), @$b), $top_z;
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push @$qnorms, (0,0,1), (0,0,1);
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push @$qverts, (map unscale($_), @$a), $top_z;
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push @$qverts, (map unscale($_), @$b), $top_z;
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# calculate normal going to the left
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$xy_normal->scale(-1);
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push @$norms, @$xy_normal, @$xy_normal;
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push @$verts, (map unscale($_), @$b2), $middle_z;
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push @$verts, (map unscale($_), @$a2), $middle_z;
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push @$qnorms, @$xy_left_normal, @$xy_left_normal;
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push @$qverts, (map unscale($_), @$b2), $middle_z;
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push @$qverts, (map unscale($_), @$a2), $middle_z;
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}
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# bottom-left face
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{
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push @$norms, @$xy_normal, @$xy_normal;
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push @$verts, (map unscale($_), @$a2), $middle_z;
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push @$verts, (map unscale($_), @$b2), $middle_z;
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push @$qnorms, @$xy_left_normal, @$xy_left_normal;
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push @$qverts, (map unscale($_), @$a2), $middle_z;
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push @$qverts, (map unscale($_), @$b2), $middle_z;
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# normal going downwards
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push @$norms, (0,0,-1), (0,0,-1);
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push @$verts, (map unscale($_), @$b), $bottom_z;
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push @$verts, (map unscale($_), @$a), $bottom_z;
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push @$qnorms, (0,0,-1), (0,0,-1);
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push @$qverts, (map unscale($_), @$b), $bottom_z;
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push @$qverts, (map unscale($_), @$a), $bottom_z;
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}
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$first_done++;
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}
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}
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