coordinates::coordinates( float size, float thickness ):
m_node( new QGLSceneNode() )
{
QGLBuilder builder;
builder << QGLCylinder( thickness, thickness, size, 12 );
QGLSceneNode* cylinder = builder.finalizedSceneNode();
cylinder->setPosition( QVector3D( 0, 0, 0.5 * size ) );
cylinder->setEffect( QGL::LitMaterial );
QGLBuilder arrowBuilder;
arrowBuilder << QGLCylinder( 0.01, 2 * thickness, size / 3, 12 );
QGLSceneNode* arrow = arrowBuilder.finalizedSceneNode();
arrow->setPosition( QVector3D( 0, 0, size ) );
arrow->setEffect( QGL::LitMaterial );
QGLSceneNode* x = new QGLSceneNode( m_node );
x->addNode(cylinder);
QMatrix4x4 matrix;
QQuaternion q = QQuaternion::fromAxisAndAngle(0.0f, 1.0f, 0.0f, 90.0f);
matrix.rotate( q );
x->setLocalTransform( matrix );
QGLSceneNode* xArrow = new QGLSceneNode( m_node );
xArrow->addNode( arrow );
xArrow->setLocalTransform( matrix );
QGLMaterial* xMaterial = new QGLMaterial;
xMaterial->setDiffuseColor( QColor( 255, 0, 0, 128 ) );
x->setMaterial( xMaterial );
xArrow->setMaterial( xMaterial );
QGLSceneNode* y = new QGLSceneNode( m_node );
y->addNode(cylinder);
q = QQuaternion::fromAxisAndAngle(1.0f, 0.0f, 0.0f, -90.0f);
matrix.rotate( q );
y->setLocalTransform( matrix );
QGLSceneNode* yArrow = new QGLSceneNode( m_node );
yArrow->addNode( arrow );
yArrow->setLocalTransform( matrix );
QGLMaterial* yMaterial = new QGLMaterial;
yMaterial->setDiffuseColor(Qt::green);
y->setMaterial( yMaterial );
QGLMaterial* yArrowMaterial = new QGLMaterial;
yArrowMaterial->setDiffuseColor( QColor( 0, 255, 0, 128 ) );
yArrow->setMaterial( yArrowMaterial );
QGLSceneNode* z = new QGLSceneNode( m_node );
z->addNode(cylinder);
QGLSceneNode* zArrow = new QGLSceneNode( m_node );
zArrow->addNode( arrow );
QGLMaterial* zMaterial = new QGLMaterial;
zMaterial->setDiffuseColor(Qt::blue);
z->setMaterial( zMaterial );
QGLMaterial* zArrowMaterial = new QGLMaterial;
zArrowMaterial->setDiffuseColor( QColor( 0, 0, 255, 128 ) );
zArrow->setMaterial( zArrowMaterial );
}
CylinderView::CylinderView(QWindow *parent)
: QGLView(parent)
{
QGLBuilder builder;
// Evil hack: it is not possible to just call glClearColor on any device
// but it is possible to have a huge, dark SkyBox. Without this hack the
// cylinder floats over a transparent background, displaying the contents
// of the last app
builder << QGL::Smooth << QGLCube(1000.0f);
// Add the cylinder
builder << QGL::Smooth << QGLCylinder(2.0, 1.5, 2.0, 36, 3, true, true);
QGLMaterial *matLid = new QGLMaterial;
matLid->setAmbientColor(Qt::gray);
matLid->setDiffuseColor(Qt::gray);
QUrl urlLid;
urlLid.setPath(QLatin1String(":/latte.png"));
urlLid.setScheme(QLatin1String("file"));
matLid->setTextureUrl(urlLid);
QGLMaterial *matSides = new QGLMaterial;
matSides->setColor(QColor(170, 202, 0));
QUrl urlSides;
urlSides.setPath(QLatin1String(":/cupTexture.png"));
urlSides.setScheme(QLatin1String("file"));
matSides->setTextureUrl(urlSides);
QGLSceneNode *root = builder.sceneNode();
QGLSceneNode *lid = root->findChild<QGLSceneNode *>("Cylinder Top");
int lidMat = root->palette()->addMaterial(matLid);
lid->setMaterialIndex(lidMat);
lid->setEffect(QGL::LitDecalTexture2D);
QGLSceneNode *sides = root->findChild<QGLSceneNode *>("Cylinder Sides");
int sideMat = root->palette()->addMaterial(matSides);
sides->setMaterialIndex(sideMat);
sides->setEffect(QGL::LitDecalTexture2D);
cylinder = builder.finalizedSceneNode();
QGLMaterial *mat = new QGLMaterial;
mat->setAmbientColor(Qt::gray);
mat->setDiffuseColor(Qt::gray);
cylinder->setMaterial(mat);
cylinder->setEffect(QGL::LitMaterial);
}
/* Creates an individual randomly positioned ball */
QGLSceneNode *ModelBall::createNode(QGLMaterial *material) {
const float defaultSize = 1.0;
const float positionX = -1.5;
const float positionY = 40.0;
const float randomPositionScale = 1000.0;
QGLBuilder builder;
QGLSceneNode *node;
builder.newNode();
builder << QGLSphere(defaultSize);
node = builder.finalizedSceneNode();
node->setMaterial(material);
node->setEffect(QGL::LitMaterial);
QGraphicsTranslation3D *trans = new QGraphicsTranslation3D();
node->addTransform(trans);
QGraphicsTranslation3D *transStart = new QGraphicsTranslation3D();
QVector3D *randomStart = new QVector3D(positionX +
randomPosition()/randomPositionScale,
positionY +
randomPosition()/randomPositionScale,
randomPosition()/randomPositionScale);
transStart->setTranslate(*randomStart);
node->addTransform(transStart);
return node;
}
void tst_QGLRender::sequence()
{
QSKIP("QWidget: Cannot create a QWidget when no GUI is being used");
QSharedPointer<QGLMaterialCollection> palette(new QGLMaterialCollection());
// create a yellow lit material
QGLMaterial *mat = new QGLMaterial;
mat->setAmbientColor(Qt::yellow);
int ix0 = palette->addMaterial(mat);
// create a blue lit material
mat = new QGLMaterial;
mat->setAmbientColor(Qt::blue);
int ix1 = palette->addMaterial(mat);
// create a grey textured material
int tx0;
{
QImage uv(1024, 1024, QImage::Format_ARGB32);
uv.fill(qRgba(196, 196, 196, 196));
mat = new QGLMaterial;
mat->setAmbientColor(Qt::gray);
QGLTexture2D *tex = new QGLTexture2D;
tex->setImage(uv);
mat->setTexture(tex);
tx0 = palette->addMaterial(mat);
}
QGLSceneNode *scene = new QGLSceneNode;
scene->setPalette(palette);
QGLSceneNode *node = 0;
QGLSceneNode *prim;
{
QGLBuilder builder(palette);
QVector3D a(-1.0f, -1.0f, 0.0f);
QVector3D b(1.0f, -1.0f, 0.0f);
QVector3D c(1.0f, 1.0f, 0.0f);
QGeometryData p;
p.appendVertex(a, b, c);
p.generateTextureCoordinates();
builder.addTriangles(p);
prim = builder.currentNode();
prim->setMaterialIndex(ix0);
builder.newSection();
QVector3D d(-1.2f, -1.2f, 0.0f);
QVector3D e(1.2f, -1.2f, 0.0f);
QVector3D f(1.2f, 1.2f, 0.0f);
QVector3D g(-1.2f, 1.2f, 0.0f);
QGeometryData q;
q.appendVertex(d, e, f, g);
q.generateTextureCoordinates();
builder.addQuads(q);
prim = builder.currentNode();
prim->setMaterialIndex(ix1);
node = builder.finalizedSceneNode();
}
scene->addNode(node);
QGLSceneNode *cl = prim->clone(scene);
cl->setMaterialIndex(tx0);
cl->setEffect(QGL::LitDecalTexture2D);
TestView widget(scene);
if (!widget.context()->isValid())
QSKIP("GL Implementation not valid");
TestPainter *ptr = new TestPainter(&widget);
widget.paintGL(ptr);
QList<int> starts = ptr->starts();
QList<int> counts = ptr->counts();
QCOMPARE(starts.at(0), 0);
QCOMPARE(counts.at(0), 3);
QCOMPARE(starts.at(1), 3);
QCOMPARE(counts.at(1), 6);
}
