Optimization of the layer offsets in 3D visualization.
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bubnikv
parent
459a42aab6
commit
6e97b9bb73
@ -634,7 +634,11 @@ sub Resize {
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glMatrixMode(GL_PROJECTION);
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glLoadIdentity();
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if ($self->_camera_type eq 'ortho') {
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my $depth = 1.05 * $self->max_bounding_box->radius();
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#FIXME setting the size of the box 10x larger than necessary
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# is only a workaround for an incorrectly set camera.
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# This workaround harms Z-buffer accuracy!
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# my $depth = 1.05 * $self->max_bounding_box->radius();
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my $depth = 10.0 * $self->max_bounding_box->radius();
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glOrtho(
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-$x/2, $x/2, -$y/2, $y/2,
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-$depth, $depth,
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@ -678,7 +682,7 @@ sub InitGL {
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glDisable(GL_LINE_SMOOTH);
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glDisable(GL_POLYGON_SMOOTH);
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glEnable(GL_MULTISAMPLE);
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glHint(GL_MULTISAMPLE_FILTER_HINT_NV, GL_NICEST);
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# glHint(GL_MULTISAMPLE_FILTER_HINT_NV, GL_NICEST);
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# ambient lighting
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glLightModelfv_p(GL_LIGHT_MODEL_AMBIENT, 0.3, 0.3, 0.3, 1);
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@ -909,8 +913,6 @@ sub draw_volumes {
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foreach my $volume_idx (0..$#{$self->volumes}) {
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my $volume = $self->volumes->[$volume_idx];
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glPushMatrix();
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glTranslatef(@{$volume->origin});
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if ($fakecolor) {
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# Object picking mode. Render the object with a color encoding the object index.
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@ -926,47 +928,48 @@ sub draw_volumes {
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glColor4f(@{ $volume->color });
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}
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my @sorted_z = ();
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my ($min_z, $max_z);
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if ($volume->range && $volume->offsets) {
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@sorted_z = sort { $a <=> $b } keys %{$volume->offsets};
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($min_z, $max_z) = @{$volume->range};
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$min_z = first { $_ >= $min_z } @sorted_z;
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$max_z = first { $_ > $max_z } @sorted_z;
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my $qverts_begin = 0;
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my $qverts_end = defined($volume->qverts) ? $volume->qverts->size() : 0;
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my $tverts_begin = 0;
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my $tverts_end = defined($volume->tverts) ? $volume->tverts->size() : 0;
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if ($volume->range && $volume->offsets && @{$volume->offsets}) {
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# The Z layer range is specified.
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# First test whether the Z span of this object is not out of ($min_z, $max_z) completely.
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my ($min_z, $max_z) = @{$volume->range};
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next if ($volume->offsets->[0] > $max_z || $volume->offsets->[-3] < $min_z);
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# Then find the lowest layer to be displayed.
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my $i = 0;
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while ($i < @{$volume->offsets} && $volume->offsets->[$i] < $min_z) {
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$i += 3;
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}
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# This shall not happen.
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next if ($i == @{$volume->offsets});
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# Some layers are above $min_z. Which?
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$qverts_begin = $volume->offsets->[$i+1];
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$tverts_begin = $volume->offsets->[$i+2];
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while ($i < @{$volume->offsets} && $volume->offsets->[$i] <= $max_z) {
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$i += 3;
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}
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if ($i < @{$volume->offsets}) {
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$qverts_end = $volume->offsets->[$i+1];
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$tverts_end = $volume->offsets->[$i+2];
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}
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}
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glPushMatrix();
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glTranslatef(@{$volume->origin});
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glCullFace(GL_BACK);
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if ($volume->qverts) {
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my ($min_offset, $max_offset);
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if (defined $min_z) {
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$min_offset = $volume->offsets->{$min_z}->[0];
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}
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if (defined $max_z) {
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$max_offset = $volume->offsets->{$max_z}->[0];
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}
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$min_offset //= 0;
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$max_offset //= $volume->qverts->size;
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if ($qverts_begin < $qverts_end) {
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glVertexPointer_c(3, GL_FLOAT, 0, $volume->qverts->verts_ptr);
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glNormalPointer_c(GL_FLOAT, 0, $volume->qverts->norms_ptr);
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glDrawArrays(GL_QUADS, $min_offset / 3, ($max_offset-$min_offset) / 3);
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glDrawArrays(GL_QUADS, $qverts_begin / 3, ($qverts_end-$qverts_begin) / 3);
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}
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if ($volume->tverts) {
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my ($min_offset, $max_offset);
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if (defined $min_z) {
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$min_offset = $volume->offsets->{$min_z}->[1];
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}
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if (defined $max_z) {
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$max_offset = $volume->offsets->{$max_z}->[1];
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}
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$min_offset //= 0;
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$max_offset //= $volume->tverts->size;
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if ($tverts_begin < $tverts_end) {
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glVertexPointer_c(3, GL_FLOAT, 0, $volume->tverts->verts_ptr);
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glNormalPointer_c(GL_FLOAT, 0, $volume->tverts->norms_ptr);
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glDrawArrays(GL_TRIANGLES, $min_offset / 3, ($max_offset-$min_offset) / 3);
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glDrawArrays(GL_TRIANGLES, $tverts_begin / 3, ($tverts_end-$tverts_begin) / 3);
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}
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glPopMatrix();
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@ -983,6 +986,34 @@ sub draw_volumes {
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glDisableClientState(GL_VERTEX_ARRAY);
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}
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sub _report_opengl_state
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{
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my ($self, $comment) = @_;
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my $err = glGetError();
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return 0 if ($err == 0);
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# gluErrorString() hangs. Don't use it.
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# my $errorstr = gluErrorString();
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my $errorstr = '';
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if ($err == 0x0500) {
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$errorstr = 'GL_INVALID_ENUM';
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} elsif ($err == GL_INVALID_VALUE) {
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$errorstr = 'GL_INVALID_VALUE';
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} elsif ($err == GL_INVALID_OPERATION) {
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$errorstr = 'GL_INVALID_OPERATION';
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} elsif ($err == GL_STACK_OVERFLOW) {
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$errorstr = 'GL_STACK_OVERFLOW';
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} elsif ($err == GL_OUT_OF_MEMORY) {
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$errorstr = 'GL_OUT_OF_MEMORY';
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} else {
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$errorstr = 'unknown';
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}
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if (defined($comment)) {
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printf("OpenGL error at %s, nr %d (0x%x): %s\n", $comment, $err, $err, $errorstr);
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} else {
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printf("OpenGL error nr %d (0x%x): %s\n", $err, $err, $errorstr);
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}
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}
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# Container for object geometry and selection status.
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package Slic3r::GUI::3DScene::Volume;
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@ -1009,7 +1040,7 @@ has 'qverts' => (is => 'rw');
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has 'tverts' => (is => 'rw');
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# If the qverts or tverts contain thick extrusions, then offsets keeps pointers of the starts
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# of the extrusions per layer.
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# [ z => [ qverts_idx, tverts_idx ] ]
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# The offsets stores tripples of (z_top, qverts_idx, tverts_idx) in a linear array.
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has 'offsets' => (is => 'rw');
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sub transformed_bounding_box {
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@ -1184,7 +1215,7 @@ sub load_print_toolpaths {
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my $qverts = Slic3r::GUI::_3DScene::GLVertexArray->new;
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my $tverts = Slic3r::GUI::_3DScene::GLVertexArray->new;
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my %offsets = (); # print_z => [ qverts, tverts ]
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my $offsets = []; # triples stored in a linear array, sorted by print_z: print_z, qverts, tverts
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my $skirt_height = 0; # number of layers
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if ($print->has_infinite_skirt) {
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@ -1204,7 +1235,7 @@ sub load_print_toolpaths {
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foreach my $i (0..($skirt_height-1)) {
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my $top_z = $layers[$i]->print_z;
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$offsets{$top_z} = [$qverts->size, $tverts->size];
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push @$offsets, ($top_z, $qverts->size, $tverts->size);
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if ($i == 0) {
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$self->_extrusionentity_to_verts($print->brim, $top_z, Slic3r::Point->new(0,0), $qverts, $tverts);
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@ -1224,7 +1255,7 @@ sub load_print_toolpaths {
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color => COLORS->[2],
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qverts => $qverts,
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tverts => $tverts,
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offsets => { %offsets },
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offsets => $offsets,
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);
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}
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@ -1241,9 +1272,9 @@ sub load_print_object_toolpaths {
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my $support_qverts = Slic3r::GUI::_3DScene::GLVertexArray->new;
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my $support_tverts = Slic3r::GUI::_3DScene::GLVertexArray->new;
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my %perim_offsets = (); # print_z => [ qverts, tverts ]
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my %infill_offsets = ();
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my %support_offsets = ();
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my $perim_offsets = []; # triples of (print_z, qverts, tverts), stored linearly, sorted by print_z
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my $infill_offsets = [];
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my $support_offsets = [];
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# order layers by print_z
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my @layers = sort { $a->print_z <=> $b->print_z }
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@ -1267,21 +1298,12 @@ sub load_print_object_toolpaths {
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foreach my $layer (@layers) {
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my $top_z = $layer->print_z;
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if (!exists $perim_offsets{$top_z}) {
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$perim_offsets{$top_z} = [
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$perim_qverts->size, $perim_tverts->size,
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];
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}
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if (!exists $infill_offsets{$top_z}) {
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$infill_offsets{$top_z} = [
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$infill_qverts->size, $infill_tverts->size,
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];
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}
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if (!exists $support_offsets{$top_z}) {
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$support_offsets{$top_z} = [
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$support_qverts->size, $support_tverts->size,
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];
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}
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push @$perim_offsets, ($top_z, $perim_qverts->size, $perim_tverts->size)
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if (!@$perim_offsets || $perim_offsets->[-3] != $top_z);
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push @$infill_offsets, ($top_z, $infill_qverts->size, $infill_tverts->size)
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if (!@$infill_offsets || $infill_offsets->[-3] != $top_z);
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push @$support_offsets, ($top_z, $support_qverts->size, $support_tverts->size)
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if (!@$support_offsets || $support_offsets->[-3] != $top_z);
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foreach my $copy (@{ $object->_shifted_copies }) {
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foreach my $layerm (@{$layer->regions}) {
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@ -1312,11 +1334,11 @@ sub load_print_object_toolpaths {
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color => COLORS->[0],
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qverts => $perim_qverts,
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tverts => $perim_tverts,
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offsets => { %perim_offsets },
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offsets => $perim_offsets,
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);
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$perim_qverts = Slic3r::GUI::_3DScene::GLVertexArray->new;
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$perim_tverts = Slic3r::GUI::_3DScene::GLVertexArray->new;
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%perim_offsets = ();
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$perim_offsets = [];
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}
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if ($infill_qverts->size() > $alloc_size_max || $infill_tverts->size() > $alloc_size_max) {
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@ -1326,11 +1348,11 @@ sub load_print_object_toolpaths {
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color => COLORS->[1],
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qverts => $infill_qverts,
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tverts => $infill_tverts,
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offsets => { %infill_offsets },
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offsets => $infill_offsets,
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);
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$infill_qverts = Slic3r::GUI::_3DScene::GLVertexArray->new;
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$infill_tverts = Slic3r::GUI::_3DScene::GLVertexArray->new;
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%infill_offsets = ();
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$infill_offsets = [];
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}
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if ($support_qverts->size() > $alloc_size_max || $support_tverts->size() > $alloc_size_max) {
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@ -1340,11 +1362,11 @@ sub load_print_object_toolpaths {
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color => COLORS->[2],
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qverts => $support_qverts,
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tverts => $support_tverts,
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offsets => { %support_offsets },
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offsets => $support_offsets,
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);
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$support_qverts = Slic3r::GUI::_3DScene::GLVertexArray->new;
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$support_tverts = Slic3r::GUI::_3DScene::GLVertexArray->new;
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%support_offsets = ();
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$support_offsets = [];
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}
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}
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@ -1354,7 +1376,7 @@ sub load_print_object_toolpaths {
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color => COLORS->[0],
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qverts => $perim_qverts,
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tverts => $perim_tverts,
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offsets => { %perim_offsets },
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offsets => $perim_offsets,
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);
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}
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@ -1364,7 +1386,7 @@ sub load_print_object_toolpaths {
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color => COLORS->[1],
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qverts => $infill_qverts,
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tverts => $infill_tverts,
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offsets => { %infill_offsets },
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offsets => $infill_offsets,
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);
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}
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@ -1374,7 +1396,7 @@ sub load_print_object_toolpaths {
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color => COLORS->[2],
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qverts => $support_qverts,
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tverts => $support_tverts,
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offsets => { %support_offsets },
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offsets => $support_offsets,
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);
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}
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}
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