osg::Node* createLineDrawables()
{
LineGroup* group = new LineGroup();
group->addCullCallback(new InstallViewportSizeUniform());
float x = 10;
LineDrawable* strip = new LineDrawable(GL_LINE_STRIP);
strip->setLineWidth(8);
strip->setColor(osg::Vec4(1,1,1,1));
addVerts(strip, x, 10);
group->addChild(strip);
x += 20;
LineDrawable* loop = new LineDrawable(GL_LINE_LOOP);
loop->setLineWidth(8);
loop->setColor(osg::Vec4(1,1,0,1));
addVerts(loop, x, 10);
group->addChild(loop);
x += 20;
LineDrawable* stippled = new LineDrawable(GL_LINE_STRIP);
stippled->setLineWidth(4);
stippled->setStipplePattern(0xff00);
stippled->setColor(osg::Vec4(0,1,0,1));
addVerts(stippled, x, 10);
group->addChild(stippled);
x += 20;
LineDrawable* segments = new LineDrawable(GL_LINES);
segments->setLineWidth(3);
segments->setColor(osg::Vec4(0,1,1,1));
addVerts(segments, x, 10);
group->addChild(segments);
x += 20;
LineDrawable* firstCount = new LineDrawable(GL_LINE_STRIP);
firstCount->setLineWidth(5);
firstCount->setColor(osg::Vec4(1,0,1,1));
addVerts(firstCount, x, 10);
firstCount->addUpdateCallback(new TestFirstCount());
group->addChild(firstCount);
x += 20;
osg::ref_ptr<osg::Node> node = makeGeometryForImport(x, 10);
group->import(node.get());
return group;
}
osg::Node* createDrawables()
{
// You need a viewport uniform for the lines to work.
// MapNode installs one automatically, but we're not using MapNode
// in this example.
osg::Group* group = new osg::Group();
group->addCullCallback(new InstallViewportSizeUniform());
float x = 10;
float y = 10;
LineDrawable* strip = new LineDrawable(GL_LINE_STRIP);
strip->setLineWidth(8);
strip->setColor(osg::Vec4(1,1,1,1));
addVerts(strip, x, y);
group->addChild(strip);
x += 20;
LineDrawable* loop = new LineDrawable(GL_LINE_LOOP);
loop->setLineWidth(1);
loop->setColor(osg::Vec4(1,1,0,1));
addVerts(loop, x, y);
group->addChild(loop);
x += 20;
LineDrawable* stippled = new LineDrawable(GL_LINE_STRIP);
stippled->setLineWidth(4);
stippled->setStipplePattern(0xff00);
stippled->setColor(osg::Vec4(0,1,0,1));
addVerts(stippled, x, y);
group->addChild(stippled);
x += 20;
LineDrawable* segments = new LineDrawable(GL_LINES);
segments->setLineWidth(3);
segments->setColor(osg::Vec4(0,1,1,1));
addVerts(segments, x, y);
group->addChild(segments);
x += 20;
LineDrawable* firstCount = new LineDrawable(GL_LINE_STRIP);
firstCount->setLineWidth(5);
firstCount->setColor(osg::Vec4(1,0,1,1));
addVerts(firstCount, x, y);
firstCount->addUpdateCallback(new TestFirstCount());
group->addChild(firstCount);
x += 20;
osg::ref_ptr<osg::Node> node = makeGeometryForImport(x, y);
LineGroup* lines = new LineGroup();
lines->import(node.get());
group->addChild(lines);
x += 20;
LineDrawable* points = new LineDrawable(GL_POINTS);
addVerts(points, x, y);
group->addChild(points);
x = 20;
y -= 20;
for(unsigned i=0; i<10; ++i)
{
LineDrawable* across = new LineDrawable(GL_LINES);
across->pushVertex(osg::Vec3(x, 0, y));
across->pushVertex(osg::Vec3(x+100, 0, y));
across->setLineWidth((float)(i+1));
across->finish();
group->addChild(across);
y -= (i+2);
}
x = 20;
y -= 20;
LineDrawable* star = makeStar(x, y, 10);
star->setColor(osg::Vec4(1,1,1,1));
star->setLineWidth(1.0f);
group->addChild(star);
x += 40;
LineDrawable* star2 = makeStar(x, y, 10);
star2->setColor(osg::Vec4(1,.5,0,1));
star2->setLineWidth(2.0f);
group->addChild(star2);
x += 40;
LineDrawable* star3 = makeStar(x, y, 10);
star3->setColor(osg::Vec4(1,1,0,1));
star3->setLineWidth(3.0f);
group->addChild(star3);
y -= 40;
x = 20;
PointDrawable* grid = makeGridOfPoints(x, y);
grid->setPointSize(3.0f);
grid->setColor(osg::Vec4(0,1,1,1));
group->addChild(grid);
x += 50;
PointDrawable* grid2 = makeGridOfPoints(x, y);
grid2->setPointSize(20.0f);
GLUtils::setPointSmooth(grid2->getOrCreateStateSet(), 1);
group->addChild(grid2);
return group;
}