3DPrinting/PrusaSlicer-NonPlainar
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Use OpenGL 2.0 shaders for the layer height rendering.

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Use OpenGL 2.0 shaders for the print path rendering for performance reasons.
This commit is contained in:
bubnikv 2017-03-20 12:05:20 +01:00
parent 56f845f3c1
commit 045de596e2
10 changed files with 403 additions and 324 deletions
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1
lib/Slic3r/GUI.pm
View File

@ -14,7 +14,6 @@ use Slic3r::GUI::ConfigWizard;
use Slic3r::GUI::Controller; use Slic3r::GUI::Controller;
use Slic3r::GUI::Controller::ManualControlDialog; use Slic3r::GUI::Controller::ManualControlDialog;
use Slic3r::GUI::Controller::PrinterPanel; use Slic3r::GUI::Controller::PrinterPanel;
use Slic3r::GUI::GLShader;
use Slic3r::GUI::MainFrame; use Slic3r::GUI::MainFrame;
use Slic3r::GUI::Notifier; use Slic3r::GUI::Notifier;
use Slic3r::GUI::Plater; use Slic3r::GUI::Plater;

318
lib/Slic3r/GUI/3DScene.pm
View File

@ -149,8 +149,6 @@ sub new {
$self->{layer_height_edit_last_z} = 0.; $self->{layer_height_edit_last_z} = 0.;
$self->{layer_height_edit_last_action} = 0; $self->{layer_height_edit_last_action} = 0;
$self->{use_VBOs} = 0;
$self->reset_objects; $self->reset_objects;
EVT_PAINT($self, sub { EVT_PAINT($self, sub {
@ -194,15 +192,15 @@ sub layer_editing_enabled {
if (! $self->{layer_editing_initialized}) { if (! $self->{layer_editing_initialized}) {
# Enabling the layer editing for the first time. This triggers compilation of the necessary OpenGL shaders. # Enabling the layer editing for the first time. This triggers compilation of the necessary OpenGL shaders.
# If compilation fails, a message box is shown with the error codes. # If compilation fails, a message box is shown with the error codes.
my $shader = $self->{shader} = new Slic3r::GUI::GLShader; my $shader = new Slic3r::GUI::_3DScene::GLShader;
my $error_message; my $error_message;
if (ref($shader)) { if (! $shader->load($self->_fragment_shader_variable_layer_height, $self->_vertex_shader_variable_layer_height)) {
my $info = $shader->Load($self->_fragment_shader, $self->_vertex_shader);
if (defined($info)) {
# Compilation or linking of the shaders failed. # Compilation or linking of the shaders failed.
$error_message = "Cannot compile an OpenGL Shader, therefore the Variable Layer Editing will be disabled.\n\n" $error_message = "Cannot compile an OpenGL Shader, therefore the Variable Layer Editing will be disabled.\n\n"
. $info; . $shader->last_error;
$shader = undef;
} else { } else {
$self->{layer_height_edit_shader} = $shader;
($self->{layer_preview_z_texture_id}) = glGenTextures_p(1); ($self->{layer_preview_z_texture_id}) = glGenTextures_p(1);
glBindTexture(GL_TEXTURE_2D, $self->{layer_preview_z_texture_id}); glBindTexture(GL_TEXTURE_2D, $self->{layer_preview_z_texture_id});
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP);
@ -212,11 +210,6 @@ sub layer_editing_enabled {
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAX_LEVEL, 1); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAX_LEVEL, 1);
glBindTexture(GL_TEXTURE_2D, 0); glBindTexture(GL_TEXTURE_2D, 0);
} }
} else {
# Cannot initialize the Shader object, some of the OpenGL capabilities are missing.
$error_message = "Cannot instantiate an OpenGL Shader, therefore the Variable Layer Editing will be disabled.\n\n"
. $shader;
}
if (defined($error_message)) { if (defined($error_message)) {
# Don't enable the layer editing tool. # Don't enable the layer editing tool.
$self->{layer_editing_enabled} = 0; $self->{layer_editing_enabled} = 0;
@ -361,6 +354,7 @@ sub mouse_event {
# Index 2 means no editing, just wait for mouse up event. # Index 2 means no editing, just wait for mouse up event.
$self->_layer_height_edited(2); $self->_layer_height_edited(2);
$self->Refresh; $self->Refresh;
$self->Update;
} else { } else {
# Select volume in this 3D canvas. # Select volume in this 3D canvas.
# Don't deselect a volume if layer editing is enabled. We want the object to stay selected # Don't deselect a volume if layer editing is enabled. We want the object to stay selected
@ -380,6 +374,7 @@ sub mouse_event {
} }
$self->Refresh; $self->Refresh;
$self->Update;
} }
# propagate event through callback # propagate event through callback
@ -421,6 +416,7 @@ sub mouse_event {
$self->_drag_start_pos($cur_pos); $self->_drag_start_pos($cur_pos);
$self->_dragged(1); $self->_dragged(1);
$self->Refresh; $self->Refresh;
$self->Update;
} elsif ($e->Dragging) { } elsif ($e->Dragging) {
if ($self->_layer_height_edited && $object_idx_selected != -1) { if ($self->_layer_height_edited && $object_idx_selected != -1) {
$self->_variable_layer_thickness_action($e) if ($self->_layer_height_edited == 1); $self->_variable_layer_thickness_action($e) if ($self->_layer_height_edited == 1);
@ -445,6 +441,7 @@ sub mouse_event {
} }
$self->on_viewport_changed->() if $self->on_viewport_changed; $self->on_viewport_changed->() if $self->on_viewport_changed;
$self->Refresh; $self->Refresh;
$self->Update;
} }
$self->_drag_start_pos($pos); $self->_drag_start_pos($pos);
} elsif ($e->MiddleIsDown || $e->RightIsDown) { } elsif ($e->MiddleIsDown || $e->RightIsDown) {
@ -459,6 +456,7 @@ sub mouse_event {
); );
$self->on_viewport_changed->() if $self->on_viewport_changed; $self->on_viewport_changed->() if $self->on_viewport_changed;
$self->Refresh; $self->Refresh;
$self->Update;
} }
$self->_drag_start_xy($pos); $self->_drag_start_xy($pos);
} }
@ -488,7 +486,10 @@ sub mouse_event {
$self->_mouse_pos($pos); $self->_mouse_pos($pos);
# Only refresh if picking is enabled, in that case the objects may get highlighted if the mouse cursor # Only refresh if picking is enabled, in that case the objects may get highlighted if the mouse cursor
# hovers over. # hovers over.
$self->Refresh if ($self->enable_picking); if ($self->enable_picking) {
$self->Update;
$self->Refresh;
}
} else { } else {
$e->Skip(); $e->Skip();
} }
@ -540,8 +541,8 @@ sub mouse_wheel_event {
# Reset selection. # Reset selection.
sub reset_objects { sub reset_objects {
my ($self) = @_; my ($self) = @_;
if ($self->{use_VBOs}) { if ($self->GetContext) {
$self->GetContext; $self->SetCurrent($self->GetContext);
$self->volumes->release_geometry; $self->volumes->release_geometry;
} }
$self->volumes->erase; $self->volumes->erase;
@ -898,6 +899,24 @@ sub SetCurrent {
} }
} }
sub UseVBOs {
my ($self) = @_;
if (! defined ($self->{use_VBOs})) {
# Don't use VBOs if anything fails.
$self->{use_VBOs} = 0;
if ($self->GetContext) {
$self->SetCurrent($self->GetContext);
my @gl_version = split(/\./, glGetString(GL_VERSION));
$self->{use_VBOs} = int($gl_version[0]) >= 2;
# print "InitGL $self OpenGL major: $gl_version[0], minor: $gl_version[1]. Use VBOs: ", $self->{use_VBOs}, "\n";
}
#FIXME
$self->{use_VBOs} = 0;
}
return $self->{use_VBOs};
}
sub Resize { sub Resize {
my ($self, $x, $y) = @_; my ($self, $x, $y) = @_;
@ -948,10 +967,6 @@ sub InitGL {
return unless $self->GetContext; return unless $self->GetContext;
$self->init(1); $self->init(1);
my @gl_version = split(/\./, glGetString(GL_VERSION));
$self->{use_VBOs} = int($gl_version[0]) >= 2;
# print "OpenGL major: $gl_version[0], minor: $gl_version[1]. Use VBOs: ", $self->{use_VBOs}, "\n";
glClearColor(0, 0, 0, 1); glClearColor(0, 0, 0, 1);
glColor3f(1, 0, 0); glColor3f(1, 0, 0);
glEnable(GL_DEPTH_TEST); glEnable(GL_DEPTH_TEST);
@ -982,10 +997,10 @@ sub InitGL {
# Enables Smooth Color Shading; try GL_FLAT for (lack of) fun. # Enables Smooth Color Shading; try GL_FLAT for (lack of) fun.
glShadeModel(GL_SMOOTH); glShadeModel(GL_SMOOTH);
glMaterialfv_p(GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE, 0.5, 0.3, 0.3, 1); # glMaterialfv_p(GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE, 0.5, 0.3, 0.3, 1);
glMaterialfv_p(GL_FRONT_AND_BACK, GL_SPECULAR, 1, 1, 1, 1); # glMaterialfv_p(GL_FRONT_AND_BACK, GL_SPECULAR, 1, 1, 1, 1);
glMaterialf(GL_FRONT_AND_BACK, GL_SHININESS, 50); # glMaterialf(GL_FRONT_AND_BACK, GL_SHININESS, 50);
glMaterialfv_p(GL_FRONT_AND_BACK, GL_EMISSION, 0.1, 0, 0, 0.9); # glMaterialfv_p(GL_FRONT_AND_BACK, GL_EMISSION, 0.1, 0, 0, 0.9);
# A handy trick -- have surface material mirror the color. # A handy trick -- have surface material mirror the color.
glColorMaterial(GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE); glColorMaterial(GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE);
@ -993,12 +1008,31 @@ sub InitGL {
glEnable(GL_MULTISAMPLE); glEnable(GL_MULTISAMPLE);
Slic3r::GUI::_3DScene::_glew_init; Slic3r::GUI::_3DScene::_glew_init;
if ($self->UseVBOs) {
my $shader = new Slic3r::GUI::_3DScene::GLShader;
if (! $shader->load($self->_fragment_shader_Gouraud, $self->_vertex_shader_Gouraud)) {
# if (! $shader->load($self->_fragment_shader_Phong, $self->_vertex_shader_Phong)) {
print "Compilaton of path shader failed: \n" . $shader->last_error . "\n";
$shader = undef;
} else {
$self->{plain_shader} = $shader;
}
}
} }
sub DestroyGL { sub DestroyGL {
my $self = shift; my $self = shift;
if ($self->init && $self->GetContext) { if ($self->GetContext) {
delete $self->{shader}; $self->SetCurrent($self->GetContext);
if ($self->{plain_shader}) {
$self->{plain_shader}->release;
delete $self->{plain_shader};
}
if ($self->{layer_height_edit_shader}) {
$self->{layer_height_edit_shader}->release;
delete $self->{layer_height_edit_shader};
}
$self->volumes->release_geometry; $self->volumes->release_geometry;
} }
} }
@ -1173,7 +1207,15 @@ sub Render {
glEnable(GL_LIGHTING); glEnable(GL_LIGHTING);
# draw objects # draw objects
if ($self->enable_picking) {
$self->draw_volumes; $self->draw_volumes;
} elsif ($self->UseVBOs) {
$self->{plain_shader}->enable if $self->{plain_shader};
$self->volumes->render_VBOs;
$self->{plain_shader}->disable;
} else {
$self->volumes->render_legacy;
}
# draw cutting plane # draw cutting plane
if (defined $self->cutting_plane_z) { if (defined $self->cutting_plane_z) {
@ -1199,7 +1241,7 @@ sub Render {
$self->SwapBuffers(); $self->SwapBuffers();
# Calling glFinish has a performance penalty, but it seems to fix some OpenGL driver hang-up with extremely large scenes. # Calling glFinish has a performance penalty, but it seems to fix some OpenGL driver hang-up with extremely large scenes.
glFinish(); # glFinish();
} }
sub draw_volumes { sub draw_volumes {
@ -1217,23 +1259,15 @@ sub draw_volumes {
my $volume = $self->volumes->[$volume_idx]; my $volume = $self->volumes->[$volume_idx];
my $shader_active = 0; my $shader_active = 0;
if ($self->layer_editing_enabled && ! $fakecolor && $volume->selected && $self->{shader} && $volume->has_layer_height_texture) { if ($self->layer_editing_enabled && ! $fakecolor && $volume->selected && $self->{layer_height_edit_shader} && $volume->has_layer_height_texture) {
# Update the height texture if the ModelObject::layer_height_texture is invalid. # Update the height texture if the ModelObject::layer_height_texture is invalid.
$volume->generate_layer_height_texture( $volume->generate_layer_height_texture(
$self->{print}->get_object(int($volume->select_group_id / 1000000)), 0); $self->{print}->get_object(int($volume->select_group_id / 1000000)), 0);
$self->{shader}->Enable; $self->{layer_height_edit_shader}->enable;
my $z_to_texture_row_id = $self->{shader}->Map('z_to_texture_row'); $self->{layer_height_edit_shader}->set_uniform('z_to_texture_row', $volume->layer_height_texture_z_to_row_id);
my $z_texture_row_to_normalized_id = $self->{shader}->Map('z_texture_row_to_normalized'); $self->{layer_height_edit_shader}->set_uniform('z_texture_row_to_normalized', 1. / $volume->layer_height_texture_height);
my $z_cursor_id = $self->{shader}->Map('z_cursor'); $self->{layer_height_edit_shader}->set_uniform('z_cursor', $volume->bounding_box->z_max * $z_cursor_relative);
my $z_cursor_band_width_id = $self->{shader}->Map('z_cursor_band_width'); $self->{layer_height_edit_shader}->set_uniform('z_cursor_band_width', $self->{layer_height_edit_band_width});
die if ! defined($z_to_texture_row_id);
die if ! defined($z_texture_row_to_normalized_id);
die if ! defined($z_cursor_id);
die if ! defined($z_cursor_band_width_id);
glUniform1fARB($z_to_texture_row_id, $volume->layer_height_texture_z_to_row_id);
glUniform1fARB($z_texture_row_to_normalized_id, 1. / $volume->layer_height_texture_height);
glUniform1fARB($z_cursor_id, $volume->bounding_box->z_max * $z_cursor_relative);
glUniform1fARB($z_cursor_band_width_id, $self->{layer_height_edit_band_width});
glBindTexture(GL_TEXTURE_2D, $self->{layer_preview_z_texture_id}); glBindTexture(GL_TEXTURE_2D, $self->{layer_preview_z_texture_id});
# glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_LEVEL, 0); # glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_LEVEL, 0);
# glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAX_LEVEL, 1); # glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAX_LEVEL, 1);
@ -1266,7 +1300,7 @@ sub draw_volumes {
if ($shader_active) { if ($shader_active) {
glBindTexture(GL_TEXTURE_2D, 0); glBindTexture(GL_TEXTURE_2D, 0);
$self->{shader}->Disable; $self->{layer_height_edit_shader}->disable;
} }
} }
glDisableClientState(GL_NORMAL_ARRAY); glDisableClientState(GL_NORMAL_ARRAY);
@ -1356,7 +1390,7 @@ sub draw_active_object_annotations {
# $fakecolor is a boolean indicating, that the objects shall be rendered in a color coding the object index for picking. # $fakecolor is a boolean indicating, that the objects shall be rendered in a color coding the object index for picking.
my ($self) = @_; my ($self) = @_;
return if (! $self->{shader} || ! $self->layer_editing_enabled); return if (! $self->{layer_height_edit_shader} || ! $self->layer_editing_enabled);
my $volume; my $volume;
foreach my $volume_idx (0..$#{$self->volumes}) { foreach my $volume_idx (0..$#{$self->volumes}) {
@ -1374,13 +1408,11 @@ sub draw_active_object_annotations {
my ($reset_left, $reset_bottom, $reset_right, $reset_top) = $self->_variable_layer_thickness_reset_rect_viewport; my ($reset_left, $reset_bottom, $reset_right, $reset_top) = $self->_variable_layer_thickness_reset_rect_viewport;
my $z_cursor_relative = $self->_variable_layer_thickness_bar_mouse_cursor_z_relative; my $z_cursor_relative = $self->_variable_layer_thickness_bar_mouse_cursor_z_relative;
$self->{shader}->Enable; $self->{layer_height_edit_shader}->enable;
my $z_to_texture_row_id = $self->{shader}->Map('z_to_texture_row'); $self->{layer_height_edit_shader}->set_uniform('z_to_texture_row', $volume->layer_height_texture_z_to_row_id);
my $z_texture_row_to_normalized_id = $self->{shader}->Map('z_texture_row_to_normalized'); $self->{layer_height_edit_shader}->set_uniform('z_texture_row_to_normalized', 1. / $volume->layer_height_texture_height);
my $z_cursor_id = $self->{shader}->Map('z_cursor'); $self->{layer_height_edit_shader}->set_uniform('z_cursor', $volume->bounding_box->z_max * $z_cursor_relative);
glUniform1fARB($z_to_texture_row_id, $volume->layer_height_texture_z_to_row_id); $self->{layer_height_edit_shader}->set_uniform('z_cursor_band_width', $self->{layer_height_edit_band_width});
glUniform1fARB($z_texture_row_to_normalized_id, 1. / $volume->layer_height_texture_height);
glUniform1fARB($z_cursor_id, $volume->bounding_box->z_max * $z_cursor_relative);
glBindTexture(GL_TEXTURE_2D, $self->{layer_preview_z_texture_id}); glBindTexture(GL_TEXTURE_2D, $self->{layer_preview_z_texture_id});
glTexImage2D_c(GL_TEXTURE_2D, 0, GL_RGBA8, $volume->layer_height_texture_width, $volume->layer_height_texture_height, glTexImage2D_c(GL_TEXTURE_2D, 0, GL_RGBA8, $volume->layer_height_texture_width, $volume->layer_height_texture_height,
0, GL_RGBA, GL_UNSIGNED_BYTE, 0); 0, GL_RGBA, GL_UNSIGNED_BYTE, 0);
@ -1405,7 +1437,7 @@ sub draw_active_object_annotations {
glVertex3f($bar_left, $bar_top, $volume->bounding_box->z_max); glVertex3f($bar_left, $bar_top, $volume->bounding_box->z_max);
glEnd(); glEnd();
glBindTexture(GL_TEXTURE_2D, 0); glBindTexture(GL_TEXTURE_2D, 0);
$self->{shader}->Disable; $self->{layer_height_edit_shader}->disable;
# Paint the tooltip. # Paint the tooltip.
if ($self->_variable_layer_thickness_load_overlay_image) { if ($self->_variable_layer_thickness_load_overlay_image) {
@ -1455,9 +1487,7 @@ sub opengl_info
my $gl_version = glGetString(GL_VERSION); my $gl_version = glGetString(GL_VERSION);
my $gl_vendor = glGetString(GL_VENDOR); my $gl_vendor = glGetString(GL_VENDOR);
my $gl_renderer = glGetString(GL_RENDERER); my $gl_renderer = glGetString(GL_RENDERER);
my $glsl_version_ARB = glGetString(GL_SHADING_LANGUAGE_VERSION_ARB) // ''; my $glsl_version = glGetString(GL_SHADING_LANGUAGE_VERSION);
my $glsl_version = glGetString(GL_SHADING_LANGUAGE_VERSION) // $glsl_version_ARB;
$glsl_version .= 'ARB(' . $glsl_version_ARB . ')' if ($glsl_version_ARB ne '' && $glsl_version ne $glsl_version_ARB);
my $out = ''; my $out = '';
$out .= "$tag{h2start}OpenGL installation$tag{h2end}$tag{eol}"; $out .= "$tag{h2start}OpenGL installation$tag{h2end}$tag{eol}";
@ -1467,25 +1497,15 @@ sub opengl_info
$out .= " $tag{bstart}renderer: $tag{bend}${gl_renderer}$tag{eol}"; $out .= " $tag{bstart}renderer: $tag{bend}${gl_renderer}$tag{eol}";
$out .= " $tag{bstart}GLSL version: $tag{bend}${glsl_version}$tag{eol}"; $out .= " $tag{bstart}GLSL version: $tag{bend}${glsl_version}$tag{eol}";
# Check for required OpenGL extensions
$out .= "$tag{h2start}Required extensions (* implemented):$tag{h2end}$tag{eol}";
my @extensions_required = qw(GL_ARB_shader_objects GL_ARB_fragment_shader GL_ARB_vertex_shader GL_ARB_shading_language_100);
foreach my $ext (sort @extensions_required) {
my $stat = glpCheckExtension($ext);
$out .= sprintf("%s ${ext}$tag{eol}", $stat?' ':'*');
$out .= sprintf(" ${stat}$tag{eol}") if ($stat && $stat !~ m|^$ext |);
}
# Check for other OpenGL extensions # Check for other OpenGL extensions
$out .= "$tag{h2start}Installed extensions (* implemented in the module):$tag{h2end}$tag{eol}"; $out .= "$tag{h2start}Installed extensions (* implemented in the module):$tag{h2end}$tag{eol}";
my $extensions = glGetString(GL_EXTENSIONS); my $extensions = glGetString(GL_EXTENSIONS);
my @extensions = split(' ',$extensions); my @extensions = split(' ',$extensions);
foreach my $ext (sort @extensions) { foreach my $ext (sort @extensions) {
if(! grep(/^$extensions$/, @extensions_required)) {
my $stat = glpCheckExtension($ext); my $stat = glpCheckExtension($ext);
$out .= sprintf("%s ${ext}$tag{eol}", $stat?' ':'*'); $out .= sprintf("%s ${ext}$tag{eol}", $stat?' ':'*');
$out .= sprintf(" ${stat}$tag{eol}") if ($stat && $stat !~ m|^$ext |); $out .= sprintf(" ${stat}$tag{eol}") if ($stat && $stat !~ m|^$ext |);
} }
}
return $out; return $out;
} }
@ -1519,17 +1539,167 @@ sub _report_opengl_state
} }
} }
sub _vertex_shader { sub _vertex_shader_Gouraud {
return <<'VERTEX';
#version 110
#define INTENSITY_CORRECTION 0.7
#define LIGHT_TOP_DIR -0.6/1.31, 0.6/1.31, 1./1.31
#define LIGHT_TOP_DIFFUSE (0.8 * INTENSITY_CORRECTION)
#define LIGHT_TOP_SPECULAR (0.5 * INTENSITY_CORRECTION)
#define LIGHT_TOP_SHININESS 50.
#define LIGHT_FRONT_DIR 1./1.43, 0.2/1.43, 1./1.43
#define LIGHT_FRONT_DIFFUSE (0.3 * INTENSITY_CORRECTION)
#define LIGHT_FRONT_SPECULAR (0.0 * INTENSITY_CORRECTION)
#define LIGHT_FRONT_SHININESS 50.
#define INTENSITY_AMBIENT 0.3
varying float intensity_specular;
varying float intensity_tainted;
void main()
{
vec3 eye, normal, lightDir, viewVector, halfVector;
float NdotL, NdotHV;
eye = vec3(0., 0., 1.);
// First transform the normal into eye space and normalize the result.
normal = normalize(gl_NormalMatrix * gl_Normal);
// Now normalize the light's direction. Note that according to the OpenGL specification, the light is stored in eye space.
// Also since we're talking about a directional light, the position field is actually direction.
lightDir = vec3(LIGHT_TOP_DIR);
halfVector = normalize(lightDir + eye);
// Compute the cos of the angle between the normal and lights direction. The light is directional so the direction is constant for every vertex.
// Since these two are normalized the cosine is the dot product. We also need to clamp the result to the [0,1] range.
NdotL = max(dot(normal, lightDir), 0.0);
intensity_tainted = INTENSITY_AMBIENT + NdotL * LIGHT_TOP_DIFFUSE;
intensity_specular = 0.;
if (NdotL > 0.0)
intensity_specular = LIGHT_TOP_SPECULAR * pow(max(dot(normal, halfVector), 0.0), LIGHT_TOP_SHININESS);
// Perform the same lighting calculation for the 2nd light source.
lightDir = vec3(LIGHT_FRONT_DIR);
// halfVector = normalize(lightDir + eye);
NdotL = max(dot(normal, lightDir), 0.0);
intensity_tainted += NdotL * LIGHT_FRONT_DIFFUSE;
// compute the specular term if NdotL is larger than zero
// if (NdotL > 0.0)
// intensity_specular += LIGHT_FRONT_SPECULAR * pow(max(dot(normal, halfVector), 0.0), LIGHT_FRONT_SHININESS);
gl_Position = ftransform();
}
VERTEX
}
sub _fragment_shader_Gouraud {
return <<'FRAGMENT';
#version 110
varying float intensity_specular;
varying float intensity_tainted;
uniform vec4 uniform_color;
void main()
{
gl_FragColor =
vec4(intensity_specular, intensity_specular, intensity_specular, 0.) + uniform_color * intensity_tainted;
gl_FragColor.a = uniform_color.a;
}
FRAGMENT
}
sub _vertex_shader_Phong {
return <<'VERTEX';
#version 110
varying vec3 normal;
varying vec3 eye;
void main(void)
{
eye = normalize(vec3(gl_ModelViewMatrix * gl_Vertex));
normal = normalize(gl_NormalMatrix * gl_Normal);
gl_Position = gl_ModelViewProjectionMatrix * gl_Vertex;
}
VERTEX
}
sub _fragment_shader_Phong {
return <<'FRAGMENT';
#version 110
#define INTENSITY_CORRECTION 0.7
#define LIGHT_TOP_DIR -0.6/1.31, 0.6/1.31, 1./1.31
#define LIGHT_TOP_DIFFUSE (0.8 * INTENSITY_CORRECTION)
#define LIGHT_TOP_SPECULAR (0.5 * INTENSITY_CORRECTION)
//#define LIGHT_TOP_SHININESS 50.
#define LIGHT_TOP_SHININESS 10.
#define LIGHT_FRONT_DIR 1./1.43, 0.2/1.43, 1./1.43
#define LIGHT_FRONT_DIFFUSE (0.3 * INTENSITY_CORRECTION)
#define LIGHT_FRONT_SPECULAR (0.0 * INTENSITY_CORRECTION)
#define LIGHT_FRONT_SHININESS 50.
#define INTENSITY_AMBIENT 0.0
varying vec3 normal;
varying vec3 eye;
uniform vec4 uniform_color;
void main() {
float intensity_specular = 0.;
float intensity_tainted = 0.;
float intensity = max(dot(normal,vec3(LIGHT_TOP_DIR)), 0.0);
// if the vertex is lit compute the specular color
if (intensity > 0.0) {
intensity_tainted = LIGHT_TOP_DIFFUSE * intensity;
// compute the half vector
vec3 h = normalize(vec3(LIGHT_TOP_DIR) + eye);
// compute the specular term into spec
intensity_specular = LIGHT_TOP_SPECULAR * pow(max(dot(h, normal), 0.0), LIGHT_TOP_SHININESS);
}
intensity = max(dot(normal,vec3(LIGHT_FRONT_DIR)), 0.0);
// if the vertex is lit compute the specular color
if (intensity > 0.0) {
intensity_tainted += LIGHT_FRONT_DIFFUSE * intensity;
// compute the half vector
// vec3 h = normalize(vec3(LIGHT_FRONT_DIR) + eye);
// compute the specular term into spec
// intensity_specular += LIGHT_FRONT_SPECULAR * pow(max(dot(h,normal), 0.0), LIGHT_FRONT_SHININESS);
}
gl_FragColor = max(
vec4(intensity_specular, intensity_specular, intensity_specular, 0.) + uniform_color * intensity_tainted,
INTENSITY_AMBIENT * uniform_color);
gl_FragColor.a = uniform_color.a;
}
FRAGMENT
}
sub _vertex_shader_variable_layer_height {
return <<'VERTEX'; return <<'VERTEX';
#version 110 #version 110
#define LIGHT_TOP_DIR 0., 1., 0. #define LIGHT_TOP_DIR 0., 1., 0.
#define LIGHT_TOP_DIFFUSE 0.2 #define LIGHT_TOP_DIFFUSE 0.2
#define LIGHT_TOP_SPECULAR 0.3 #define LIGHT_TOP_SPECULAR 0.3
#define LIGHT_TOP_SHININESS 50.
#define LIGHT_FRONT_DIR 0., 0., 1. #define LIGHT_FRONT_DIR 0., 0., 1.
#define LIGHT_FRONT_DIFFUSE 0.5 #define LIGHT_FRONT_DIFFUSE 0.5
#define LIGHT_FRONT_SPECULAR 0.3 #define LIGHT_FRONT_SPECULAR 0.3
#define LIGHT_FRONT_SHININESS 50.
#define INTENSITY_AMBIENT 0.1 #define INTENSITY_AMBIENT 0.1
@ -1562,7 +1732,7 @@ void main()
intensity_specular = 0.; intensity_specular = 0.;
// if (NdotL > 0.0) // if (NdotL > 0.0)
// intensity_specular = LIGHT_TOP_SPECULAR * pow(max(dot(normal, halfVector), 0.0), gl_FrontMaterial.shininess); // intensity_specular = LIGHT_TOP_SPECULAR * pow(max(dot(normal, halfVector), 0.0), LIGHT_TOP_SHININESS);
// Perform the same lighting calculation for the 2nd light source. // Perform the same lighting calculation for the 2nd light source.
lightDir = vec3(LIGHT_FRONT_DIR); lightDir = vec3(LIGHT_FRONT_DIR);
@ -1572,7 +1742,7 @@ void main()
// compute the specular term if NdotL is larger than zero // compute the specular term if NdotL is larger than zero
if (NdotL > 0.0) if (NdotL > 0.0)
intensity_specular += LIGHT_FRONT_SPECULAR * pow(max(dot(normal, halfVector), 0.0), gl_FrontMaterial.shininess); intensity_specular += LIGHT_FRONT_SPECULAR * pow(max(dot(normal, halfVector), 0.0), LIGHT_FRONT_SHININESS);
// Scaled to widths of the Z texture. // Scaled to widths of the Z texture.
object_z = gl_Vertex.z / gl_Vertex.w; object_z = gl_Vertex.z / gl_Vertex.w;
@ -1583,7 +1753,7 @@ void main()
VERTEX VERTEX
} }
sub _fragment_shader { sub _fragment_shader_variable_layer_height {
return <<'FRAGMENT'; return <<'FRAGMENT';
#version 110 #version 110
@ -1662,6 +1832,8 @@ sub new {
sub load_object { sub load_object {
my ($self, $model, $print, $obj_idx, $instance_idxs) = @_; my ($self, $model, $print, $obj_idx, $instance_idxs) = @_;
$self->SetCurrent($self->GetContext) if $self->UseVBOs;
my $model_object; my $model_object;
if ($model->isa('Slic3r::Model::Object')) { if ($model->isa('Slic3r::Model::Object')) {
$model_object = $model; $model_object = $model;
@ -1672,7 +1844,9 @@ sub load_object {
} }
$instance_idxs ||= [0..$#{$model_object->instances}]; $instance_idxs ||= [0..$#{$model_object->instances}];
my $volume_indices = $self->volumes->load_object($model_object, $obj_idx, $instance_idxs, $self->color_by, $self->select_by, $self->drag_by); my $volume_indices = $self->volumes->load_object(
$model_object, $obj_idx, $instance_idxs, $self->color_by, $self->select_by, $self->drag_by,
$self->UseVBOs);
return @{$volume_indices}; return @{$volume_indices};
} }
@ -1681,8 +1855,8 @@ sub load_object {
sub load_print_toolpaths { sub load_print_toolpaths {
my ($self, $print) = @_; my ($self, $print) = @_;
$self->GetContext if ($self->{use_VBOs}); $self->SetCurrent($self->GetContext) if $self->UseVBOs;
Slic3r::GUI::_3DScene::_load_print_toolpaths($print, $self->volumes, $self->{use_VBOs}) Slic3r::GUI::_3DScene::_load_print_toolpaths($print, $self->volumes, $self->UseVBOs)
if ($print->step_done(STEP_SKIRT) && $print->step_done(STEP_BRIM)); if ($print->step_done(STEP_SKIRT) && $print->step_done(STEP_BRIM));
} }
@ -1692,8 +1866,8 @@ sub load_print_toolpaths {
sub load_print_object_toolpaths { sub load_print_object_toolpaths {
my ($self, $object) = @_; my ($self, $object) = @_;
$self->GetContext if ($self->{use_VBOs}); $self->SetCurrent($self->GetContext) if $self->UseVBOs;
Slic3r::GUI::_3DScene::_load_print_object_toolpaths($object, $self->volumes, $self->{use_VBOs}); Slic3r::GUI::_3DScene::_load_print_object_toolpaths($object, $self->volumes, $self->UseVBOs);
} }
sub set_toolpaths_range { sub set_toolpaths_range {

193
lib/Slic3r/GUI/GLShader.pm
View File

@ -1,193 +0,0 @@
############################################################
#
# Stripped down from the Perl OpenGL::Shader package by Vojtech Bubnik
# to only support the GLSL shaders. The original source was not maintained
# and did not install properly through the CPAN archive, and it was unnecessary
# complex.
#
# Original copyright:
#
# Copyright 2007 Graphcomp - ALL RIGHTS RESERVED
# Author: Bob "grafman" Free - grafman@graphcomp.com
#
# This program is free software; you can redistribute it and/or
# modify it under the same terms as Perl itself.
#
############################################################
package Slic3r::GUI::GLShader;
use OpenGL(':all');
# Avoid cloning this class by the worker threads.
sub CLONE_SKIP { 1 }
# Shader constructor
sub new
{
# Check for required OpenGL extensions
my $error_message = '';
my $extensions_valid = 1;
foreach my $i (map "GL_ARB_$_", qw(shader_objects fragment_shader vertex_shader shading_language_100)) {
if (OpenGL::glpCheckExtension($i)) {
$error_message .= "Missing OpenGL extension: $i\n";
$extensions_valid = 0;
}
}
if (! $extensions_valid) {
# Cannot create a shader object, because some of the necessary OpenGL extensions are missing.
# Form an error message.
my $gl_version = glGetString(GL_VERSION);
my $gl_vendor = glGetString(GL_VENDOR);
my $gl_renderer = glGetString(GL_RENDERER);
my $glsl_version_ARB = glGetString(GL_SHADING_LANGUAGE_VERSION_ARB) // '';
my $glsl_version = glGetString(GL_SHADING_LANGUAGE_VERSION) // $glsl_version_ARB;
$glsl_version .= 'ARB(' . $glsl_version_ARB . ')' if ($glsl_version_ARB ne '' && $glsl_version ne $glsl_version_ARB);
my $out = '';
if ($^O eq 'MSWin32' && $gl_vendor eq 'Microsoft Corporation' && $gl_renderer eq 'GDI Generic') {
$out .= "Windows is using a software OpenGL renderer.\n";
$out .= "You are either connected over remote desktop,\n";
$out .= "or a hardware acceleration is not available.\n";
}
$out .= "GL version: ${gl_version}\n";
$out .= "vendor: ${gl_vendor}\n";
$out .= "renderer: ${gl_renderer}\n";
$out .= "GLSL version: ${glsl_version}\n";
$error_message = $out . $error_message;
return $error_message;
}
my $this = shift;
my $class = ref($this) || $this;
my($type) = @_;
my $self = {type => uc($type)};
bless($self, $class);
# Get GL_SHADING_LANGUAGE_VERSION_ARB
my $shader_ver = glGetString(0x8B8C);
$shader_ver =~ m|([\d\.]+)|;
$self->{version} = $1 || '0';
# print "Shader version: $self->{version}\n";
return $self;
}
# Shader destructor
# Must be disabled first
sub DESTROY
{
my($self) = @_;
if ($self->{program}) {
glDetachObjectARB($self->{program},$self->{fragment_id}) if ($self->{fragment_id});
glDetachObjectARB($self->{program},$self->{vertex_id}) if ($self->{vertex_id});
glDeleteProgramsARB_p($self->{program});
}
glDeleteProgramsARB_p($self->{fragment_id}) if ($self->{fragment_id});
glDeleteProgramsARB_p($self->{vertex_id}) if ($self->{vertex_id});
}
# Load shader strings
sub Load
{
my($self, $fragment, $vertex) = @_;
# Load fragment code
if ($fragment) {
$self->{fragment_id} = glCreateShaderObjectARB(GL_FRAGMENT_SHADER);
return "glCreateShaderObjectARB failed." if (!$self->{fragment_id});
glShaderSourceARB_p($self->{fragment_id}, $fragment);
glCompileShaderARB($self->{fragment_id});
my $stat = glGetInfoLogARB_p($self->{fragment_id});
return "Fragment shader compilation failed:\n$stat" if ($stat);
}
# Load vertex code
if ($vertex) {
$self->{vertex_id} = glCreateShaderObjectARB(GL_VERTEX_SHADER);
return "glCreateShaderObjectARB failed." if (!$self->{vertex_id});
glShaderSourceARB_p($self->{vertex_id}, $vertex);
glCompileShaderARB($self->{vertex_id});
$stat = glGetInfoLogARB_p($self->{vertex_id});
return "Vertex shader compilation failed:\n$stat" if ($stat);
}
# Link shaders
my $sp = glCreateProgramObjectARB();
return "glCreateProgramObjectARB failed." if (!sp);
glAttachObjectARB($sp, $self->{fragment_id}) if ($fragment);
glAttachObjectARB($sp, $self->{vertex_id}) if ($vertex);
glLinkProgramARB($sp);
my $linked = glGetObjectParameterivARB_p($sp, GL_OBJECT_LINK_STATUS_ARB);
if (!$linked) {
$stat = glGetInfoLogARB_p($sp);
return "Shader linking failed:\n$stat" if ($stat);
return 'Unable to link the shader.';
}
$self->{program} = $sp;
return undef;
}
# Enable shader
sub Enable
{
my($self) = @_;
glUseProgramObjectARB($self->{program}) if ($self->{program});
}
# Disable shader
sub Disable
{
my($self) = @_;
glUseProgramObjectARB(0) if ($self->{program});
}
# Return shader vertex attribute ID
sub MapAttr
{
my($self,$attr) = @_;
return undef if (!$self->{program});
my $id = glGetAttribLocationARB_p($self->{program},$attr);
return undef if ($id < 0);
return $id;
}
# Return shader uniform variable ID
sub Map
{
my($self,$var) = @_;
return undef if (!$self->{program});
my $id = glGetUniformLocationARB_p($self->{program},$var);
return undef if ($id < 0);
return $id;
}
# Set shader vector
sub SetVector
{
my($self,$var,@values) = @_;
my $id = $self->Map($var);
return 'Unable to map $var' if (!defined($id));
my $count = scalar(@values);
eval('glUniform'.$count.'fARB($id,@values)');
return '';
}
# Set shader 4x4 matrix
sub SetMatrix
{
my($self,$var,$oga) = @_;
my $id = $self->Map($var);
return 'Unable to map $var' if (!defined($id));
glUniformMatrix4fvARB_c($id,1,0,$oga->ptr());
return '';
}
1;
__END__

3
xs/lib/Slic3r/XS.pm
View File

@ -247,6 +247,9 @@ sub new {
); );
} }
package Slic3r::GUI::_3DScene::GLShader;
sub CLONE_SKIP { 1 }
package Slic3r::GUI::_3DScene::GLVolume::Collection; package Slic3r::GUI::_3DScene::GLVolume::Collection;
use overload use overload
'@{}' => sub { $_[0]->arrayref }, '@{}' => sub { $_[0]->arrayref },

1
xs/src/perlglue.cpp
View File

@ -60,6 +60,7 @@ REGISTER_CLASS(Surface, "Surface");
REGISTER_CLASS(SurfaceCollection, "Surface::Collection"); REGISTER_CLASS(SurfaceCollection, "Surface::Collection");
REGISTER_CLASS(PrintObjectSupportMaterial, "Print::SupportMaterial2"); REGISTER_CLASS(PrintObjectSupportMaterial, "Print::SupportMaterial2");
REGISTER_CLASS(TriangleMesh, "TriangleMesh"); REGISTER_CLASS(TriangleMesh, "TriangleMesh");
REGISTER_CLASS(GLShader, "GUI::_3DScene::GLShader");
REGISTER_CLASS(GLVolume, "GUI::_3DScene::GLVolume"); REGISTER_CLASS(GLVolume, "GUI::_3DScene::GLVolume");
REGISTER_CLASS(GLVolumeCollection, "GUI::_3DScene::GLVolume::Collection"); REGISTER_CLASS(GLVolumeCollection, "GUI::_3DScene::GLVolume::Collection");

126
xs/src/slic3r/GUI/3DScene.cpp
View File

@ -34,8 +34,6 @@ void GLIndexedVertexArray::load_mesh_flat_shading(const TriangleMesh &mesh)
for (int j = 0; j < 3; ++ j) for (int j = 0; j < 3; ++ j)
this->push_geometry(facet.vertex[j].x, facet.vertex[j].y, facet.vertex[j].z, facet.normal.x, facet.normal.y, facet.normal.z); this->push_geometry(facet.vertex[j].x, facet.vertex[j].y, facet.vertex[j].z, facet.normal.x, facet.normal.y, facet.normal.z);
} }
vertices_and_normals_interleaved_size = this->vertices_and_normals_interleaved.size();
} }
void GLIndexedVertexArray::finalize_geometry(bool use_VBOs) void GLIndexedVertexArray::finalize_geometry(bool use_VBOs)
@ -85,11 +83,20 @@ void GLIndexedVertexArray::release_geometry()
void GLIndexedVertexArray::render() const void GLIndexedVertexArray::render() const
{ {
if (this->vertices_and_normals_interleaved_VBO_id) {
glBindBuffer(GL_ARRAY_BUFFER, this->vertices_and_normals_interleaved_VBO_id);
glVertexPointer(3, GL_FLOAT, 6 * sizeof(float), (const void*)(3 * sizeof(float)));
glNormalPointer(GL_FLOAT, 6 * sizeof(float), nullptr);
} else {
glVertexPointer(3, GL_FLOAT, 6 * sizeof(float), this->vertices_and_normals_interleaved.data() + 3);
glNormalPointer(GL_FLOAT, 6 * sizeof(float), this->vertices_and_normals_interleaved.data());
}
glEnableClientState(GL_VERTEX_ARRAY);
glEnableClientState(GL_NORMAL_ARRAY);
if (this->indexed()) { if (this->indexed()) {
if (this->vertices_and_normals_interleaved_VBO_id) { if (this->vertices_and_normals_interleaved_VBO_id) {
// Render using the Vertex Buffer Objects. // Render using the Vertex Buffer Objects.
glBindBuffer(GL_ARRAY_BUFFER, this->vertices_and_normals_interleaved_VBO_id);
glInterleavedArrays(GL_N3F_V3F, 0, nullptr);
if (this->triangle_indices_size > 0) { if (this->triangle_indices_size > 0) {
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, this->triangle_indices_VBO_id); glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, this->triangle_indices_VBO_id);
glDrawElements(GL_TRIANGLES, GLsizei(this->triangle_indices_size), GL_UNSIGNED_INT, nullptr); glDrawElements(GL_TRIANGLES, GLsizei(this->triangle_indices_size), GL_UNSIGNED_INT, nullptr);
@ -98,32 +105,21 @@ void GLIndexedVertexArray::render() const
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, this->quad_indices_VBO_id); glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, this->quad_indices_VBO_id);
glDrawElements(GL_QUADS, GLsizei(this->quad_indices_size), GL_UNSIGNED_INT, nullptr); glDrawElements(GL_QUADS, GLsizei(this->quad_indices_size), GL_UNSIGNED_INT, nullptr);
} }
glBindBuffer(GL_ARRAY_BUFFER, 0);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0); glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
} else { } else {
// Render in an immediate mode. // Render in an immediate mode.
glInterleavedArrays(GL_N3F_V3F, 0, this->vertices_and_normals_interleaved.data());
// Due to issues with the Intel drivers, rather limit the amount of vertices processed per draw command.
if (! this->triangle_indices.empty()) if (! this->triangle_indices.empty())
glDrawElements(GL_TRIANGLES, GLsizei(this->triangle_indices_size), GL_UNSIGNED_INT, this->triangle_indices.data()); glDrawElements(GL_TRIANGLES, GLsizei(this->triangle_indices_size), GL_UNSIGNED_INT, this->triangle_indices.data());
if (! this->quad_indices.empty()) if (! this->quad_indices.empty())
glDrawElements(GL_QUADS, GLsizei(this->quad_indices_size), GL_UNSIGNED_INT, this->quad_indices.data()); glDrawElements(GL_QUADS, GLsizei(this->quad_indices_size), GL_UNSIGNED_INT, this->quad_indices.data());
} }
} else { } else
if (this->vertices_and_normals_interleaved_VBO_id) {
// Render using the Vertex Buffer Objects.
glBindBuffer(GL_ARRAY_BUFFER, this->vertices_and_normals_interleaved_VBO_id);
glInterleavedArrays(GL_N3F_V3F, 0, nullptr);
glDrawArrays(GL_TRIANGLES, 0, GLsizei(this->vertices_and_normals_interleaved_size / 6)); glDrawArrays(GL_TRIANGLES, 0, GLsizei(this->vertices_and_normals_interleaved_size / 6));
glBindBuffer(GL_ARRAY_BUFFER, 0);
} else {
// Render in an immediate mode.
glInterleavedArrays(GL_N3F_V3F, 0, this->vertices_and_normals_interleaved.data());
glDrawArrays(GL_TRIANGLES, 0, GLsizei(this->vertices_and_normals_interleaved_size / 6));
}
}
glInterleavedArrays(GL_N3F_V3F, 0, nullptr); if (this->vertices_and_normals_interleaved_VBO_id)
glBindBuffer(GL_ARRAY_BUFFER, 0);
glDisableClientState(GL_VERTEX_ARRAY);
glDisableClientState(GL_NORMAL_ARRAY);
} }
void GLIndexedVertexArray::render( void GLIndexedVertexArray::render(
@ -137,7 +133,10 @@ void GLIndexedVertexArray::render(
if (this->vertices_and_normals_interleaved_VBO_id) { if (this->vertices_and_normals_interleaved_VBO_id) {
// Render using the Vertex Buffer Objects. // Render using the Vertex Buffer Objects.
glBindBuffer(GL_ARRAY_BUFFER, this->vertices_and_normals_interleaved_VBO_id); glBindBuffer(GL_ARRAY_BUFFER, this->vertices_and_normals_interleaved_VBO_id);
glInterleavedArrays(GL_N3F_V3F, 0, nullptr); glVertexPointer(3, GL_FLOAT, 6 * sizeof(float), (const void*)(3 * sizeof(float)));
glNormalPointer(GL_FLOAT, 6 * sizeof(float), nullptr);
glEnableClientState(GL_VERTEX_ARRAY);
glEnableClientState(GL_NORMAL_ARRAY);
if (this->triangle_indices_size > 0) { if (this->triangle_indices_size > 0) {
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, this->triangle_indices_VBO_id); glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, this->triangle_indices_VBO_id);
glDrawElements(GL_TRIANGLES, GLsizei(std::min(this->triangle_indices_size, tverts_range.second - tverts_range.first)), GL_UNSIGNED_INT, (const void*)(tverts_range.first * 4)); glDrawElements(GL_TRIANGLES, GLsizei(std::min(this->triangle_indices_size, tverts_range.second - tverts_range.first)), GL_UNSIGNED_INT, (const void*)(tverts_range.first * 4));
@ -150,22 +149,26 @@ void GLIndexedVertexArray::render(
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0); glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
} else { } else {
// Render in an immediate mode. // Render in an immediate mode.
glInterleavedArrays(GL_N3F_V3F, 0, this->vertices_and_normals_interleaved.data()); glVertexPointer(3, GL_FLOAT, 6 * sizeof(float), this->vertices_and_normals_interleaved.data() + 3);
glNormalPointer(GL_FLOAT, 6 * sizeof(float), this->vertices_and_normals_interleaved.data());
glEnableClientState(GL_VERTEX_ARRAY);
glEnableClientState(GL_NORMAL_ARRAY);
if (! this->triangle_indices.empty()) if (! this->triangle_indices.empty())
glDrawElements(GL_TRIANGLES, GLsizei(std::min(this->triangle_indices_size, tverts_range.second - tverts_range.first)), GL_UNSIGNED_INT, (const void*)(this->triangle_indices.data() + tverts_range.first)); glDrawElements(GL_TRIANGLES, GLsizei(std::min(this->triangle_indices_size, tverts_range.second - tverts_range.first)), GL_UNSIGNED_INT, (const void*)(this->triangle_indices.data() + tverts_range.first));
if (! this->quad_indices.empty()) if (! this->quad_indices.empty())
glDrawElements(GL_QUADS, GLsizei(std::min(this->quad_indices_size, qverts_range.second - qverts_range.first)), GL_UNSIGNED_INT, (const void*)(this->quad_indices.data() + qverts_range.first)); glDrawElements(GL_QUADS, GLsizei(std::min(this->quad_indices_size, qverts_range.second - qverts_range.first)), GL_UNSIGNED_INT, (const void*)(this->quad_indices.data() + qverts_range.first));
} }
glInterleavedArrays(GL_N3F_V3F, 0, nullptr); glDisableClientState(GL_VERTEX_ARRAY);
glDisableClientState(GL_NORMAL_ARRAY);
} }
void GLVolume::set_range(double min_z, double max_z) void GLVolume::set_range(double min_z, double max_z)
{ {
this->qverts_range.first = 0; this->qverts_range.first = 0;
this->qverts_range.second = this->indexed_vertex_array.quad_indices.size(); this->qverts_range.second = this->indexed_vertex_array.quad_indices_size;
this->tverts_range.first = 0; this->tverts_range.first = 0;
this->tverts_range.second = this->indexed_vertex_array.triangle_indices.size(); this->tverts_range.second = this->indexed_vertex_array.triangle_indices_size;
if (! this->print_zs.empty()) { if (! this->print_zs.empty()) {
// The Z layer range is specified. // The Z layer range is specified.
// First test whether the Z span of this object is not out of (min_z, max_z) completely. // First test whether the Z span of this object is not out of (min_z, max_z) completely.
@ -246,7 +249,8 @@ std::vector<int> GLVolumeCollection::load_object(
const std::vector<int> &instance_idxs, const std::vector<int> &instance_idxs,
const std::string &color_by, const std::string &color_by,
const std::string &select_by, const std::string &select_by,
const std::string &drag_by) const std::string &drag_by,
bool use_VBOs)
{ {
static float colors[4][4] = { static float colors[4][4] = {
{ 1.0f, 1.0f, 0.0f, 1.f }, { 1.0f, 1.0f, 0.0f, 1.f },
@ -272,7 +276,9 @@ std::vector<int> GLVolumeCollection::load_object(
this->volumes.emplace_back(new GLVolume(color)); this->volumes.emplace_back(new GLVolume(color));
GLVolume &v = *this->volumes.back(); GLVolume &v = *this->volumes.back();
v.indexed_vertex_array.load_mesh_flat_shading(mesh); v.indexed_vertex_array.load_mesh_flat_shading(mesh);
// finalize_geometry() clears the vertex arrays, therefore the bounding box has to be computed before finalize_geometry().
v.bounding_box = v.indexed_vertex_array.bounding_box(); v.bounding_box = v.indexed_vertex_array.bounding_box();
v.indexed_vertex_array.finalize_geometry(use_VBOs);
v.composite_id = obj_idx * 1000000 + volume_idx * 1000 + instance_idx; v.composite_id = obj_idx * 1000000 + volume_idx * 1000 + instance_idx;
if (select_by == "object") if (select_by == "object")
v.select_group_id = obj_idx * 1000000; v.select_group_id = obj_idx * 1000000;
@ -292,6 +298,74 @@ std::vector<int> GLVolumeCollection::load_object(
return volumes_idx; return volumes_idx;
} }
void GLVolumeCollection::render_VBOs() const
{
// glEnable(GL_BLEND);
// glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glCullFace(GL_BACK);
glEnableClientState(GL_VERTEX_ARRAY);
glEnableClientState(GL_NORMAL_ARRAY);
GLint current_program_id;
glGetIntegerv(GL_CURRENT_PROGRAM, &current_program_id);
GLint color_id = (current_program_id > 0) ? glGetUniformLocation(current_program_id, "uniform_color") : -1;
for (GLVolume *volume : this->volumes) {
if (! volume->indexed_vertex_array.vertices_and_normals_interleaved_VBO_id)
continue;
GLsizei n_triangles = GLsizei(std::min(volume->indexed_vertex_array.triangle_indices_size, volume->tverts_range.second - volume->tverts_range.first));
GLsizei n_quads = GLsizei(std::min(volume->indexed_vertex_array.quad_indices_size, volume->qverts_range.second - volume->qverts_range.first));
if (n_triangles + n_quads == 0)
continue;
if (color_id >= 0)
glUniform4fv(color_id, 1, (const GLfloat*)volume->color);
else
glColor4f(volume->color[0], volume->color[1], volume->color[2], volume->color[3]);
glBindBuffer(GL_ARRAY_BUFFER, volume->indexed_vertex_array.vertices_and_normals_interleaved_VBO_id);
glVertexPointer(3, GL_FLOAT, 6 * sizeof(float), (const void*)(3 * sizeof(float)));
glNormalPointer(GL_FLOAT, 6 * sizeof(float), nullptr);
if (n_triangles > 0) {
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, volume->indexed_vertex_array.triangle_indices_VBO_id);
glDrawElements(GL_TRIANGLES, n_triangles, GL_UNSIGNED_INT, (const void*)(volume->tverts_range.first * 4));
}
if (n_quads > 0) {
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, volume->indexed_vertex_array.quad_indices_VBO_id);
glDrawElements(GL_QUADS, n_quads, GL_UNSIGNED_INT, (const void*)(volume->qverts_range.first * 4));
}
}
glBindBuffer(GL_ARRAY_BUFFER, 0);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
glDisableClientState(GL_VERTEX_ARRAY);
glDisableClientState(GL_NORMAL_ARRAY);
// glDisable(GL_BLEND);
}
void GLVolumeCollection::render_legacy() const
{
glCullFace(GL_BACK);
glEnableClientState(GL_VERTEX_ARRAY);
glEnableClientState(GL_NORMAL_ARRAY);
for (GLVolume *volume : this->volumes) {
assert(! volume->indexed_vertex_array.vertices_and_normals_interleaved_VBO_id);
GLsizei n_triangles = GLsizei(std::min(volume->indexed_vertex_array.triangle_indices_size, volume->tverts_range.second - volume->tverts_range.first));
GLsizei n_quads = GLsizei(std::min(volume->indexed_vertex_array.quad_indices_size, volume->qverts_range.second - volume->qverts_range.first));
if (n_triangles + n_quads == 0)
continue;
glColor4f(volume->color[0], volume->color[1], volume->color[2], volume->color[3]);
glVertexPointer(3, GL_FLOAT, 6 * sizeof(float), volume->indexed_vertex_array.vertices_and_normals_interleaved.data() + 3);
glNormalPointer(GL_FLOAT, 6 * sizeof(float), volume->indexed_vertex_array.vertices_and_normals_interleaved.data());
if (n_triangles > 0)
glDrawElements(GL_TRIANGLES, n_triangles, GL_UNSIGNED_INT, volume->indexed_vertex_array.triangle_indices.data() + volume->tverts_range.first);
if (n_quads > 0)
glDrawElements(GL_QUADS, n_quads, GL_UNSIGNED_INT, volume->indexed_vertex_array.quad_indices.data() + volume->qverts_range.first);
}
glDisableClientState(GL_VERTEX_ARRAY);
glDisableClientState(GL_NORMAL_ARRAY);
}
// caller is responsible for supplying NO lines with zero length // caller is responsible for supplying NO lines with zero length
static void thick_lines_to_indexed_vertex_array( static void thick_lines_to_indexed_vertex_array(
const Lines &lines, const Lines &lines,

17
xs/src/slic3r/GUI/3DScene.hpp
View File

@ -189,10 +189,7 @@ public:
selected(false), selected(false),
hover(false), hover(false),
qverts_range(0, size_t(-1)), qverts_range(0, size_t(-1)),
tverts_range(0, size_t(-1)), tverts_range(0, size_t(-1))
name_vertex_buffer(0),
name_normal_buffer(0),
name_index_buffer(0)
{ {
color[0] = r; color[0] = r;
color[1] = g; color[1] = g;
@ -238,12 +235,6 @@ public:
// Offset into qverts & tverts, or offsets into indices stored into an OpenGL name_index_buffer. // Offset into qverts & tverts, or offsets into indices stored into an OpenGL name_index_buffer.
std::vector<size_t> offsets; std::vector<size_t> offsets;
// OpenGL buffers for vertices and their normals.
int name_vertex_buffer;
int name_normal_buffer;
// OpenGL buffer of the indices.
int name_index_buffer;
int object_idx() const { return this->composite_id / 1000000; } int object_idx() const { return this->composite_id / 1000000; }
int volume_idx() const { return (this->composite_id / 1000) % 1000; } int volume_idx() const { return (this->composite_id / 1000) % 1000; }
int instance_idx() const { return this->composite_id % 1000; } int instance_idx() const { return this->composite_id % 1000; }
@ -296,8 +287,12 @@ public:
const std::vector<int> &instance_idxs, const std::vector<int> &instance_idxs,
const std::string &color_by, const std::string &color_by,
const std::string &select_by, const std::string &select_by,
const std::string &drag_by); const std::string &drag_by,
bool use_VBOs);
// Render the volumes by OpenGL.
void render_VBOs() const;
void render_legacy() const;
// Release the geometry data assigned to the volumes. // Release the geometry data assigned to the volumes.
// If OpenGL VBOs were allocated, an OpenGL context has to be active to release them. // If OpenGL VBOs were allocated, an OpenGL context has to be active to release them.
void release_geometry() { for (auto *v : volumes) v->release_geometry(); } void release_geometry() { for (auto *v : volumes) v->release_geometry(); }

32
xs/xsp/GUI_3DScene.xsp
View File

@ -1,8 +1,28 @@
%module{Slic3r::XS}; %module{Slic3r::XS};
#include <xsinit.h> #include <xsinit.h>
#include "slic3r/GUI/GLShader.hpp"
#include "slic3r/GUI/3DScene.hpp" #include "slic3r/GUI/3DScene.hpp"
%name{Slic3r::GUI::_3DScene::GLShader} class GLShader {
GLShader();
~GLShader();
bool load(const char *fragment_shader, const char *vertex_shader);
void release();
int get_attrib_location(const char *name) const;
int get_uniform_location(const char *name) const;
bool set_uniform(const char *name, float value) const;
void enable() const;
void disable() const;
std::string last_error() const
%code%{ RETVAL = THIS->last_error; %};
};
%name{Slic3r::GUI::_3DScene::GLVolume} class GLVolume { %name{Slic3r::GUI::_3DScene::GLVolume} class GLVolume {
GLVolume(); GLVolume();
~GLVolume(); ~GLVolume();
@ -55,7 +75,7 @@
GLVolumeCollection(); GLVolumeCollection();
~GLVolumeCollection(); ~GLVolumeCollection();
std::vector<int> load_object(ModelObject *object, int obj_idx, std::vector<int> instance_idxs, std::string color_by, std::string select_by, std::string drag_by); std::vector<int> load_object(ModelObject *object, int obj_idx, std::vector<int> instance_idxs, std::string color_by, std::string select_by, std::string drag_by, bool use_VBOs);
void erase() void erase()
%code{% THIS->clear(); %}; %code{% THIS->clear(); %};
@ -65,6 +85,8 @@
void set_range(double low, double high); void set_range(double low, double high);
void render_VBOs() const;
void render_legacy() const;
void release_geometry(); void release_geometry();
%{ %{
@ -97,16 +119,16 @@ void
_load_print_toolpaths(print, volumes, use_VBOs) _load_print_toolpaths(print, volumes, use_VBOs)
Print *print; Print *print;
GLVolumeCollection *volumes; GLVolumeCollection *volumes;
bool use_VBOs; int use_VBOs;
CODE: CODE:
_3DScene::_load_print_toolpaths(print, volumes, use_VBOs); _3DScene::_load_print_toolpaths(print, volumes, use_VBOs != 0);
void void
_load_print_object_toolpaths(print_object, volumes, use_VBOs) _load_print_object_toolpaths(print_object, volumes, use_VBOs)
PrintObject *print_object; PrintObject *print_object;
GLVolumeCollection *volumes; GLVolumeCollection *volumes;
bool use_VBOs; int use_VBOs;
CODE: CODE:
_3DScene::_load_print_object_toolpaths(print_object, volumes, use_VBOs); _3DScene::_load_print_object_toolpaths(print_object, volumes, use_VBOs != 0);
%} %}

2
xs/xsp/my.map
View File

@ -233,6 +233,8 @@ PrintObjectSupportMaterial* O_OBJECT_SLIC3R
Ref<PrintObjectSupportMaterial> O_OBJECT_SLIC3R_T Ref<PrintObjectSupportMaterial> O_OBJECT_SLIC3R_T
Clone<PrintObjectSupportMaterial> O_OBJECT_SLIC3R_T Clone<PrintObjectSupportMaterial> O_OBJECT_SLIC3R_T
GLShader* O_OBJECT_SLIC3R
Ref<GLShader> O_OBJECT_SLIC3R_T
GLVolume* O_OBJECT_SLIC3R GLVolume* O_OBJECT_SLIC3R
Ref<GLVolume> O_OBJECT_SLIC3R_T Ref<GLVolume> O_OBJECT_SLIC3R_T
GLVolumeCollection* O_OBJECT_SLIC3R GLVolumeCollection* O_OBJECT_SLIC3R

2
xs/xsp/typemap.xspt
View File

@ -211,6 +211,8 @@
%typemap{ModelInstancePtrs*}; %typemap{ModelInstancePtrs*};
%typemap{Ref<ModelInstancePtrs>}{simple}; %typemap{Ref<ModelInstancePtrs>}{simple};
%typemap{Clone<ModelInstancePtrs>}{simple}; %typemap{Clone<ModelInstancePtrs>}{simple};
%typemap{GLShader*};
%typemap{Ref<GLShader>}{simple};
%typemap{GLVolume*}; %typemap{GLVolume*};
%typemap{Ref<GLVolume>}{simple}; %typemap{Ref<GLVolume>}{simple};
%typemap{GLVolumeCollection*}; %typemap{GLVolumeCollection*};