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Nicer 3D colors and lighting

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This commit is contained in:
Alessandro Ranellucci 2014-07-12 17:06:42 +02:00
parent bcc8e356b2
commit a34c7c76c4
2 changed files with 49 additions and 23 deletions
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69
lib/Slic3r/GUI/PreviewCanvas.pm
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@ -21,7 +21,7 @@ __PACKAGE__->mk_accessors( qw(quat dirty init mview_init
use constant TRACKBALLSIZE => 0.8;
use constant TURNTABLE_MODE => 1;
use constant SELECTED_COLOR => [0,1,0,1];
use constant COLORS => [ [1,1,1], [1,0.5,0.5], [0.5,1,0.5], [0.5,0.5,1] ];
use constant COLORS => [ [1,1,0], [1,0.5,0.5], [0.5,1,0.5], [0.5,0.5,1] ];
# make OpenGL::Array thread-safe
{
@ -342,7 +342,10 @@ sub Resize {
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glOrtho(-$x/2, $x/2, -$y/2, $y/2, 0.5, 2 * max(@{ $self->object_bounding_box->size }));
glOrtho(
-$x/2, $x/2, -$y/2, $y/2,
0.5, 5 * max(@{ $self->object_bounding_box->size }),
);
glMatrixMode(GL_MODELVIEW);
unless ($self->mview_init) {
@ -358,30 +361,40 @@ sub InitGL {
return unless $self->GetContext;
$self->init(1);
glEnable(GL_NORMALIZE);
glEnable(GL_LIGHTING);
glDepthFunc(GL_LESS);
glClearColor(0, 0, 0, 1);
glColor3f(1, 0, 0);
glEnable(GL_DEPTH_TEST);
glClearDepth(1.0);
glDepthFunc(GL_LEQUAL);
glEnable(GL_CULL_FACE);
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
# Settings for our light.
my @LightPos = (0, 0, 2, 1.0);
my @LightAmbient = (0.1, 0.1, 0.1, 1.0);
my @LightDiffuse = (0.7, 0.5, 0.5, 1.0);
my @LightSpecular = (0.1, 0.1, 0.1, 0.1);
# ambient lighting
glLightModelfv_p(GL_LIGHT_MODEL_AMBIENT, 0.1, 0.1, 0.1, 1);
glEnable(GL_LIGHTING);
glEnable(GL_LIGHT0);
glEnable(GL_LIGHT1);
glLightfv_p(GL_LIGHT0, GL_POSITION, 0.5, 0.5, 1, 0);
glLightfv_p(GL_LIGHT0, GL_SPECULAR, 0.5, 0.5, 0.5, 1);
glLightfv_p(GL_LIGHT0, GL_DIFFUSE, 0.8, 0.8, 0.8, 1);
glLightfv_p(GL_LIGHT1, GL_POSITION, 1, 0, 0.5, 0);
glLightfv_p(GL_LIGHT1, GL_SPECULAR, 0.5, 0.5, 0.5, 1);
glLightfv_p(GL_LIGHT1, GL_DIFFUSE, 1, 1, 1, 1);
# Enables Smooth Color Shading; try GL_FLAT for (lack of) fun.
glShadeModel(GL_SMOOTH);
# Set up a light, turn it on.
glLightfv_p(GL_LIGHT1, GL_POSITION, @LightPos);
glLightfv_p(GL_LIGHT1, GL_AMBIENT, @LightAmbient);
glLightfv_p(GL_LIGHT1, GL_DIFFUSE, @LightDiffuse);
glLightfv_p(GL_LIGHT1, GL_SPECULAR, @LightSpecular);
glEnable(GL_LIGHT1);
glMaterialfv_p(GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE, 0.5, 0.3, 0.3, 1);
glMaterialfv_p(GL_FRONT_AND_BACK, GL_SPECULAR, 1, 1, 1, 1);
glMaterialf(GL_FRONT_AND_BACK, GL_SHININESS, 50);
glMaterialfv_p(GL_FRONT_AND_BACK, GL_EMISSION, 0.1, 0, 0, 0.9);
# A handy trick -- have surface material mirror the color.
glColorMaterial(GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE);
glEnable(GL_COLOR_MATERIAL);
glEnable(GL_MULTISAMPLE);
}
sub Render {
@ -392,7 +405,10 @@ sub Render {
return unless my $context = $self->GetContext;
$self->SetCurrent($context);
$self->InitGL;
glClearColor(1, 1, 1, 1);
glClearDepth(1);
glDepthFunc(GL_LESS);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glPushMatrix();
@ -409,6 +425,8 @@ sub Render {
$self->draw_mesh;
glDisable(GL_LIGHTING);
my $z0 = 0;
# draw axes
{
@ -433,20 +451,23 @@ sub Render {
my $ground_z = $z0-0.02;
glDisable(GL_CULL_FACE);
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glBegin(GL_QUADS);
glColor4f(1, 1, 1, 0.5);
glColor4f(0.5, 0.5, 0.5, 0.3);
glNormal3d(0,0,1);
glVertex3f(-$axis_len, -$axis_len, $ground_z);
glVertex3f($axis_len, -$axis_len, $ground_z);
glVertex3f($axis_len, $axis_len, $ground_z);
glVertex3f(-$axis_len, $axis_len, $ground_z);
glEnd();
glEnable(GL_CULL_FACE);
glDisable(GL_BLEND);
glEnable(GL_CULL_FACE);
# draw grid
glLineWidth(3);
glColor3f(1.0, 1.0, 1.0);
glBegin(GL_LINES);
glColor3f(1, 1, 1);
$ground_z += 0.02;
for (my $x = -$axis_len; $x <= $axis_len; $x += 10) {
glVertex3f($x, -$axis_len, $ground_z);
glVertex3f($x, $axis_len, $ground_z);
@ -464,7 +485,7 @@ sub Render {
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glBegin(GL_QUADS);
glColor4f(1, 0.8, 0.8, 0.5);
glColor4f(0.8, 0.8, 0.8, 0.5);
glVertex3f(-$axis_len, -$axis_len, $plane_z);
glVertex3f($axis_len, -$axis_len, $plane_z);
glVertex3f($axis_len, $axis_len, $plane_z);
@ -474,6 +495,8 @@ sub Render {
glDisable(GL_BLEND);
}
}
glEnable(GL_LIGHTING);
glPopMatrix();
glFlush();