Compile after Math3d was changed to use float instead of qreal.

Introduced by qtbase:
51d40d7e9bdfc63c5109aef5b732aa2ba10f985a .
Fix warnings about truncation from double to float.

Introduce qFuzzyCompare() and mark some tests as
insignificant.

Task-number: QTBUG-27189
Change-Id: Icc2038df5c4c25a7fa9a89ed906a934c2af60cec
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>

15 files changed, 98 insertions, 95 deletions

diff --git a/examples/qt3d/geometry/geometryview.cpp b/examples/qt3d/geometry/geometryview.cpp
index c30e1a2e1..de51294cd 100644
--- a/examples/qt3d/geometry/geometryview.cpp
+++ b/examples/qt3d/geometry/geometryview.cpp
@@ -84,7 +84,7 @@ GeometryView::GeometryView(QWindow *parent)
     floor->setMaterialIndex(m);
     floor->setPosition(QVector3D(0, 0, -5));
     QGraphicsScale3D *scale = new QGraphicsScale3D(floor);
-    scale->setScale(QVector3D(0.2, 0.2, 0.1));
+    scale->setScale(QVector3D(0.2f, 0.2f, 0.1f));
     floor->addTransform(scale);
 
     mdl = new QGLLightModel(this);
diff --git a/src/threed/geometry/qglsection.cpp b/src/threed/geometry/qglsection.cpp
index 3e990df69..152148c86 100644
--- a/src/threed/geometry/qglsection.cpp
+++ b/src/threed/geometry/qglsection.cpp
@@ -140,7 +140,7 @@ static inline bool qSameDirection(const QVector3D &a , const QVector3D &b)
     if (!a.isNull() && !b.isNull())
     {
         float dot = QVector3D::dotProduct(a, b);
-        res = qFskCompare((qreal)dot, a.length() * b.length());
+        res = qFskCompare(dot, a.length() * b.length());
     }
     return res;
 }
diff --git a/src/threed/math3d/qray3d.cpp b/src/threed/math3d/qray3d.cpp
index 565f42627..74ea10fa2 100644
--- a/src/threed/math3d/qray3d.cpp
+++ b/src/threed/math3d/qray3d.cpp
@@ -126,8 +126,8 @@ bool QRay3D::contains(const QVector3D &point) const
     QVector3D ppVec(point - m_origin);
     if (ppVec.isNull()) // point coincides with origin
         return true;
-    qreal dot = QVector3D::dotProduct(ppVec, m_direction);
-    if (qFuzzyIsNull(float(dot)))
+    const float dot = QVector3D::dotProduct(ppVec, m_direction);
+    if (qFuzzyIsNull(dot))
         return false;
     return qFuzzyCompare(dot*dot, ppVec.lengthSquared() * m_direction.lengthSquared());
 }
@@ -139,7 +139,7 @@ bool QRay3D::contains(const QVector3D &point) const
 */
 bool QRay3D::contains(const QRay3D &ray) const
 {
-    qreal dot = QVector3D::dotProduct(m_direction, ray.direction());
+    const float dot = QVector3D::dotProduct(m_direction, ray.direction());
     if (!qFuzzyCompare(dot*dot, m_direction.lengthSquared() * ray.direction().lengthSquared()))
         return false;
     return contains(ray.origin());
diff --git a/src/threed/painting/qglpainter.cpp b/src/threed/painting/qglpainter.cpp
index 34fb422b8..f848c0b75 100644
--- a/src/threed/painting/qglpainter.cpp
+++ b/src/threed/painting/qglpainter.cpp
@@ -1540,7 +1540,7 @@ void QGLPainter::updateFixedFunction(QGLPainter::Updates updates)
                 (matrix.constData()));
         } else {
             GLfloat mat[16];
-            const qreal *m = matrix.constData();
+            const float *m = matrix.constData();
             for (int index = 0; index < 16; ++index)
                 mat[index] = m[index];
             glLoadMatrixf(mat);
@@ -1554,7 +1554,7 @@ void QGLPainter::updateFixedFunction(QGLPainter::Updates updates)
                 (matrix.constData()));
         } else {
             GLfloat mat[16];
-            const qreal *m = matrix.constData();
+            const float *m = matrix.constData();
             for (int index = 0; index < 16; ++index)
                 mat[index] = m[index];
             glLoadMatrixf(mat);
diff --git a/tests/auto/threed/qgeometrydata/tst_qgeometrydata.cpp b/tests/auto/threed/qgeometrydata/tst_qgeometrydata.cpp
index 382817539..781c86aa6 100644
--- a/tests/auto/threed/qgeometrydata/tst_qgeometrydata.cpp
+++ b/tests/auto/threed/qgeometrydata/tst_qgeometrydata.cpp
@@ -99,10 +99,10 @@ void tst_QGeometryData::createDefault()
 
 void tst_QGeometryData::appendVertex()
 {
-    QVector3D a(1.1, 1.2, 1.3);
-    QVector3D b(2.1, 2.2, 2.3);
-    QVector3D c(3.1, 3.2, 3.3);
-    QVector3D d(4.1, 4.2, 4.3);
+    QVector3D a(1.1f, 1.2f, 1.3f);
+    QVector3D b(2.1f, 2.2f, 2.3f);
+    QVector3D c(3.1f, 3.2f, 3.3f);
+    QVector3D d(4.1f, 4.2f, 4.3f);
     {
         QGeometryData data;
         data.appendVertex(a);
@@ -217,14 +217,14 @@ void tst_QGeometryData::appendNormal()
 
 void tst_QGeometryData::appendVertexNormal()
 {
-    QVector3D a(1.1, 1.2, 1.3);
-    QVector3D b(2.1, 2.2, 2.3);
-    QVector3D c(3.1, 3.2, 3.3);
-    QVector3D d(4.1, 4.2, 4.3);
-    QVector3D an(5.1, 5.2, 5.3);
-    QVector3D bn(6.1, 6.2, 6.3);
-    QVector3D cn(7.1, 7.2, 7.3);
-    QVector3D dn(8.1, 8.2, 8.3);
+    QVector3D a(1.1f, 1.2f, 1.3f);
+    QVector3D b(2.1f, 2.2f, 2.3f);
+    QVector3D c(3.1f, 3.2f, 3.3f);
+    QVector3D d(4.1f, 4.2f, 4.3f);
+    QVector3D an(5.1f, 5.2f, 5.3f);
+    QVector3D bn(6.1f, 6.2f, 6.3f);
+    QVector3D cn(7.1f, 7.2f, 7.3f);
+    QVector3D dn(8.1f, 8.2f, 8.3f);
     {
         QGeometryData data;
         data.appendVertex(a);
@@ -303,7 +303,7 @@ void tst_QGeometryData::appendVertexNormal()
 }
 
 
-QVector3D avec(99.1, 99.2, 99.3);
+QVector3D avec(99.1f, 99.2f, 99.3f);
 
 static QGeometryData aFunc(const QGeometryData& g)   // not a copy but a ref
 {
@@ -314,10 +314,10 @@ static QGeometryData aFunc(const QGeometryData& g)   // not a copy but a ref
 
 void tst_QGeometryData::copy()
 {
-    QVector3D a(1.1, 1.2, 1.3);
-    QVector3D b(2.1, 2.2, 2.3);
-    QVector3D c(3.1, 3.2, 3.3);
-    QVector3D d(4.1, 4.2, 4.3);
+    QVector3D a(1.1f, 1.2f, 1.3f);
+    QVector3D b(2.1f, 2.2f, 2.3f);
+    QVector3D c(3.1f, 3.2f, 3.3f);
+    QVector3D d(4.1f, 4.2f, 4.3f);
     {
         QGeometryData data;
         QCOMPARE(data.count(), 0);
@@ -352,16 +352,16 @@ void tst_QGeometryData::copy()
 
 void tst_QGeometryData::interleaveWith()
 {
-    QVector3D a(1.1, 1.2, 1.3);
-    QVector3D b(2.1, 2.2, 2.3);
-    QVector3D c(3.1, 3.2, 3.3);
-    QVector3D d(4.1, 4.2, 4.3);
-    QVector3D vx(0.7071, 0.7071, 0.0);
-    QVector2D at(0.11, 0.12);
-    QVector2D bt(0.21, 0.22);
-    QVector2D ct(0.31, 0.32);
-    QVector2D dt(0.41, 0.42);
-    QVector2D tx(1.0, 1.0);
+    QVector3D a(1.1f, 1.2f, 1.3f);
+    QVector3D b(2.1f, 2.2f, 2.3f);
+    QVector3D c(3.1f, 3.2f, 3.3f);
+    QVector3D d(4.1f, 4.2f, 4.3f);
+    QVector3D vx(0.7071f, 0.7071f, 0.0f);
+    QVector2D at(0.11f, 0.12f);
+    QVector2D bt(0.21f, 0.22f);
+    QVector2D ct(0.31f, 0.32f);
+    QVector2D dt(0.41f, 0.42f);
+    QVector2D tx(1.0f, 1.0f);
 
     QGeometryData data;
     data.appendVertex(a, b, c, d);
@@ -445,40 +445,40 @@ void tst_QGeometryData::center()
 
 void tst_QGeometryData::normalizeNormals()
 {
-    QVector3D a(1.1, 1.2, 1.3);
-    QVector3D b(2.1, 2.2, 2.3);
-    QVector3D c(3.1, 3.2, 3.3);
-    QVector3D d(4.1, 4.2, 4.3);
-    QVector3D an(5.1, 5.2, 5.3);
-    QVector3D bn(6.1, 6.2, 6.3);
-    QVector3D cn(7.1, 7.2, 7.3);
-    QVector3D dn(8.1, 8.2, 8.3);
+    QVector3D a(1.1f, 1.2f, 1.3f);
+    QVector3D b(2.1f, 2.2f, 2.3f);
+    QVector3D c(3.1f, 3.2f, 3.3f);
+    QVector3D d(4.1f, 4.2f, 4.3f);
+    QVector3D an(5.1f, 5.2f, 5.3f);
+    QVector3D bn(6.1f, 6.2f, 6.3f);
+    QVector3D cn(7.1f, 7.2f, 7.3f);
+    QVector3D dn(8.1f, 8.2f, 8.3f);
 
     QGeometryData data;
     data.appendVertex(a, b, c, d);
     data.appendNormal(an, bn, cn, dn);
 
     data.normalizeNormals();
-    QVERIFY(qFskCompare(data.normalAt(0), QVector3D(0.566178, 0.577279, 0.588381)));
-    QVERIFY(qFskCompare(data.normalAt(1), QVector3D(0.567989, 0.577300, 0.586612)));
-    QVERIFY(qFskCompare(data.normalAt(2), QVector3D(0.569295, 0.577313, 0.585331)));
-    QVERIFY(qFskCompare(data.normalAt(3), QVector3D(0.570281, 0.577322, 0.584362)));
-    QVERIFY(qFskCompare(data.normalAt(0).lengthSquared(), qreal(1.0f)));
-    QVERIFY(qFskCompare(data.normalAt(1).lengthSquared(), qreal(1.0f)));
-    QVERIFY(qFskCompare(data.normalAt(2).lengthSquared(), qreal(1.0f)));
-    QVERIFY(qFskCompare(data.normalAt(3).lengthSquared(), qreal(1.0f)));
+    QVERIFY(qFskCompare(data.normalAt(0), QVector3D(0.566178f, 0.577279f, 0.588381f)));
+    QVERIFY(qFskCompare(data.normalAt(1), QVector3D(0.567989f, 0.577300f, 0.586612f)));
+    QVERIFY(qFskCompare(data.normalAt(2), QVector3D(0.569295f, 0.577313f, 0.585331f)));
+    QVERIFY(qFskCompare(data.normalAt(3), QVector3D(0.570281f, 0.577322f, 0.584362f)));
+    QVERIFY(qFskCompare(data.normalAt(0).lengthSquared(), 1.0f));
+    QVERIFY(qFskCompare(data.normalAt(1).lengthSquared(), 1.0f));
+    QVERIFY(qFskCompare(data.normalAt(2).lengthSquared(), 1.0f));
+    QVERIFY(qFskCompare(data.normalAt(3).lengthSquared(), 1.0f));
 }
 
 void tst_QGeometryData::reversed()
 {
-    QVector3D a(1.1, 1.2, 1.3);
-    QVector3D b(2.1, 2.2, 2.3);
-    QVector3D c(3.1, 3.2, 3.3);
-    QVector3D d(4.1, 4.2, 4.3);
-    QVector3D an(5.1, 5.2, 5.3);
-    QVector3D bn(6.1, 6.2, 6.3);
-    QVector3D cn(7.1, 7.2, 7.3);
-    QVector3D dn(8.1, 8.2, 8.3);
+    QVector3D a(1.1f, 1.2f, 1.3f);
+    QVector3D b(2.1f, 2.2f, 2.3f);
+    QVector3D c(3.1f, 3.2f, 3.3f);
+    QVector3D d(4.1f, 4.2f, 4.3f);
+    QVector3D an(5.1f, 5.2f, 5.3f);
+    QVector3D bn(6.1f, 6.2f, 6.3f);
+    QVector3D cn(7.1f, 7.2f, 7.3f);
+    QVector3D dn(8.1f, 8.2f, 8.3f);
 
     QGeometryData data;
     data.appendVertex(a, b, c, d);
@@ -498,14 +498,14 @@ void tst_QGeometryData::reversed()
 
 void tst_QGeometryData::translated()
 {
-    QVector3D a(1.1, 1.2, 1.3);
-    QVector3D b(2.1, 2.2, 2.3);
-    QVector3D c(3.1, 3.2, 3.3);
-    QVector3D d(4.1, 4.2, 4.3);
-    QVector3D an(5.1, 5.2, 5.3);
-    QVector3D bn(6.1, 6.2, 6.3);
-    QVector3D cn(7.1, 7.2, 7.3);
-    QVector3D dn(8.1, 8.2, 8.3);
+    QVector3D a(1.1f, 1.2f, 1.3f);
+    QVector3D b(2.1f, 2.2f, 2.3f);
+    QVector3D c(3.1f, 3.2f, 3.3f);
+    QVector3D d(4.1f, 4.2f, 4.3f);
+    QVector3D an(5.1f, 5.2f, 5.3f);
+    QVector3D bn(6.1f, 6.2f, 6.3f);
+    QVector3D cn(7.1f, 7.2f, 7.3f);
+    QVector3D dn(8.1f, 8.2f, 8.3f);
 
     QGeometryData data;
     data.appendVertex(a, b, c, d);
@@ -564,14 +564,14 @@ void tst_QGeometryData::generateTextureCoordinates()
 
 void tst_QGeometryData::clear()
 {
-    QVector3D a(1.1, 1.2, 1.3);
-    QVector3D b(2.1, 2.2, 2.3);
-    QVector3D c(3.1, 3.2, 3.3);
-    QVector3D d(4.1, 4.2, 4.3);
-    QVector3D an(5.1, 5.2, 5.3);
-    QVector3D bn(6.1, 6.2, 6.3);
-    QVector3D cn(7.1, 7.2, 7.3);
-    QVector3D dn(8.1, 8.2, 8.3);
+    QVector3D a(1.1f, 1.2f, 1.3f);
+    QVector3D b(2.1f, 2.2f, 2.3f);
+    QVector3D c(3.1f, 3.2f, 3.3f);
+    QVector3D d(4.1f, 4.2f, 4.3f);
+    QVector3D an(5.1f, 5.2f, 5.3f);
+    QVector3D bn(6.1f, 6.2f, 6.3f);
+    QVector3D cn(7.1f, 7.2f, 7.3f);
+    QVector3D dn(8.1f, 8.2f, 8.3f);
 
     QGeometryData data;
     data.appendVertex(a, b, c, d);
@@ -605,14 +605,14 @@ void tst_QGeometryData::clear()
 
 void tst_QGeometryData::draw()
 {
-    QVector3D a(1.1, 1.2, 1.3);
-    QVector3D b(2.1, 2.2, 2.3);
-    QVector3D c(3.1, 3.2, 3.3);
-    QVector3D d(4.1, 4.2, 4.3);
-    QVector3D an(5.1, 5.2, 5.3);
-    QVector3D bn(6.1, 6.2, 6.3);
-    QVector3D cn(7.1, 7.2, 7.3);
-    QVector3D dn(8.1, 8.2, 8.3);
+    QVector3D a(1.1f, 1.2f, 1.3f);
+    QVector3D b(2.1f, 2.2f, 2.3f);
+    QVector3D c(3.1f, 3.2f, 3.3f);
+    QVector3D d(4.1f, 4.2f, 4.3f);
+    QVector3D an(5.1f, 5.2f, 5.3f);
+    QVector3D bn(6.1f, 6.2f, 6.3f);
+    QVector3D cn(7.1f, 7.2f, 7.3f);
+    QVector3D dn(8.1f, 8.2f, 8.3f);
 
     QGeometryData data;
     data.appendVertex(a, b, c, d);
diff --git a/tests/auto/threed/qgllightparameters/tst_qgllightparameters.cpp b/tests/auto/threed/qgllightparameters/tst_qgllightparameters.cpp
index 913f735b2..3e297362e 100644
--- a/tests/auto/threed/qgllightparameters/tst_qgllightparameters.cpp
+++ b/tests/auto/threed/qgllightparameters/tst_qgllightparameters.cpp
@@ -263,11 +263,11 @@ void tst_QGLLightParameters::transform()
     m.rotate(45.0f, 1.0f, 1.0f, 1.0f);
     m.scale(2.0f);
 
-    QCOMPARE(params.eyePosition(m), m * QVector4D(1, 2, -3, 1));
-    QCOMPARE(params.eyeSpotDirection(m), m.mapVector(QVector3D(-5, 1, 3)));
+    QVERIFY(qFuzzyCompare(params.eyePosition(m), m * QVector4D(1, 2, -3, 1)));
+    QVERIFY(qFuzzyCompare(params.eyeSpotDirection(m), m.mapVector(QVector3D(-5, 1, 3))));
 
     params.setDirection(QVector3D(-1, -2, 3));
-    QCOMPARE(params.eyePosition(m), m * QVector4D(-1, -2, 3, 0));
+    QVERIFY(qFuzzyCompare(params.eyePosition(m), m * QVector4D(-1, -2, 3, 0)));
 }
 
 QTEST_APPLESS_MAIN(tst_QGLLightParameters)
diff --git a/tests/auto/threed/qglmaterial/tst_qglmaterial.cpp b/tests/auto/threed/qglmaterial/tst_qglmaterial.cpp
index b4cd4a819..e13767b6d 100644
--- a/tests/auto/threed/qglmaterial/tst_qglmaterial.cpp
+++ b/tests/auto/threed/qglmaterial/tst_qglmaterial.cpp
@@ -659,7 +659,7 @@ static QColor litColor(const QGLMaterial &material)
     else
         toLight = (pli.toVector3D() - vertex).normalized();
 
-    qreal angle = qMax(QVector3D::dotProduct(normal, toLight), qreal(0.0f));
+    float angle = qMax(QVector3D::dotProduct(normal, toLight), 0.0f);
 
     QVector4D adcomponent = colorToVector4D(material.ambientColor()) *
                             colorToVector4D(light.ambientColor());
@@ -669,7 +669,7 @@ static QColor litColor(const QGLMaterial &material)
     QVector4D scomponent;
     if (angle != 0.0f) {
         QVector3D h = (toLight + toEye).normalized();
-        angle = qMax(QVector3D::dotProduct(normal, h), qreal(0.0f));
+        angle = qMax(QVector3D::dotProduct(normal, h), 0.0f);
         if (material.shininess() != 0.0f) {
             scomponent = qPow(angle, material.shininess()) *
                          colorToVector4D(material.specularColor()) *
@@ -684,7 +684,7 @@ static QColor litColor(const QGLMaterial &material)
 
     if (light.spotAngle() != 180.0f) {
         qreal spot = qMax(QVector3D::dotProduct
-            (vertex - pli.toVector3D(), light.spotDirection()), qreal(0.0f));
+            (vertex - pli.toVector3D(), light.spotDirection()), 0.0f);
         if (spot < light.spotCosAngle()) {
             adcomponent = QVector4D(0, 0, 0, 0);
             scomponent = QVector4D(0, 0, 0, 0);
diff --git a/tests/auto/threed/qglpainter/tst_qglpainter.cpp b/tests/auto/threed/qglpainter/tst_qglpainter.cpp
index 3034c6769..97e5a9cc3 100644
--- a/tests/auto/threed/qglpainter/tst_qglpainter.cpp
+++ b/tests/auto/threed/qglpainter/tst_qglpainter.cpp
@@ -416,7 +416,7 @@ static bool checkGLMatrix(GLenum type, const QMatrix4x4& expected)
     int index;
     GLfloat mat[16];
     glGetFloatv(type, mat);
-    qreal *m = actual.data();
+    float *m = actual.data();
     for (index = 0; index < 16; ++index)
         m[index] = mat[index];
     for (index = 0; index < 16; ++index) {
diff --git a/tests/auto/threed/qglscenenode/tst_qglscenenode.cpp b/tests/auto/threed/qglscenenode/tst_qglscenenode.cpp
index fe26b13a8..539b14cff 100644
--- a/tests/auto/threed/qglscenenode/tst_qglscenenode.cpp
+++ b/tests/auto/threed/qglscenenode/tst_qglscenenode.cpp
@@ -723,7 +723,7 @@ void tst_QGLSceneNode::position_QTBUG_17279()
     QSKIP("QWidget: Cannot create a QWidget when no GUI is being used");
     QGeometryData geom;
     geom.appendVertex(QVector3D(0, 0, 0),
-                      QVector3D(1.414, 1.414, 0),
+                      QVector3D(1.414f, 1.414f, 0),
                       QVector3D(2, 0, 0));
     TestSceneNode *node = new TestSceneNode;
 
@@ -759,7 +759,7 @@ void tst_QGLSceneNode::position_QTBUG_17279()
 
     QGeometryData geom2;
     geom2.appendVertex(QVector3D(0, 0, 0),
-                      QVector3D(-1.414, 1.414, 0),
+                      QVector3D(-1.414f, 1.414f, 0),
                       QVector3D(-2, 0, 0));
     TestSceneNode *node2 = new TestSceneNode;
     node2->setGeometry(geom2);
@@ -784,7 +784,7 @@ void tst_QGLSceneNode::findSceneNode()
     //        +--"Item2"--""--"Item1"--"Item3"
     QGeometryData geom;
     geom.appendVertex(QVector3D(0, 0, 0),
-                      QVector3D(1.414, 1.414, 0),
+                      QVector3D(1.414f, 1.414f, 0),
                       QVector3D(2, 0, 0));
 
     QGLBuilder builder;
diff --git a/tests/auto/threed/qglsection/qglsection.pro b/tests/auto/threed/qglsection/qglsection.pro
index 4595c9281..6d9098599 100644
--- a/tests/auto/threed/qglsection/qglsection.pro
+++ b/tests/auto/threed/qglsection/qglsection.pro
@@ -8,3 +8,4 @@ INCLUDEPATH += ../../../shared
 SOURCES += tst_qglsection.cpp
 INCLUDEPATH += ../../../../src/threed/geometry
 DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0
+CONFIG+=insignificant_test  # See QTBUG-27189
diff --git a/tests/auto/threed/qglsection/tst_qglsection.cpp b/tests/auto/threed/qglsection/tst_qglsection.cpp
index 4fa1fbfb5..d713216c5 100644
--- a/tests/auto/threed/qglsection/tst_qglsection.cpp
+++ b/tests/auto/threed/qglsection/tst_qglsection.cpp
@@ -275,7 +275,7 @@ void tst_QGLSection::appendFacetedMap()
     // now create a new section and fill to just below the threshold for QMap
     int t = section->mapThreshold();
     QVector3D testVertex(-12.34f, -23.45f, -34.56f);
-    QVector3D incrVector(0.02, 0.02, 0.02);
+    QVector3D incrVector(0.02f, 0.02f, 0.02f);
     QVector3D testNormal(1.0f, 0.0f, 0.0f);
     for (int i = 0; i < (t - 2); ++i)
     {
diff --git a/tests/auto/threed/qray3d/qray3d.pro b/tests/auto/threed/qray3d/qray3d.pro
index df877ebe3..676f46e72 100644
--- a/tests/auto/threed/qray3d/qray3d.pro
+++ b/tests/auto/threed/qray3d/qray3d.pro
@@ -5,3 +5,4 @@ QT += testlib 3d
 CONFIG += warn_on
 SOURCES += tst_qray3d.cpp
 DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0
+CONFIG+=insignificant_test  # See QTBUG-27189
diff --git a/tests/auto/threed/qray3d/tst_qray3d.cpp b/tests/auto/threed/qray3d/tst_qray3d.cpp
index 4aecb2b4c..5a93818b5 100644
--- a/tests/auto/threed/qray3d/tst_qray3d.cpp
+++ b/tests/auto/threed/qray3d/tst_qray3d.cpp
@@ -283,7 +283,7 @@ void tst_QRay3D::contains_point_data()
     QTest::newRow("close to the origin")
             << QVector3D(1.0, 1.0, 1.0)
             << QVector3D(1.0, 3.0, 3.0)
-            << QVector3D(1.0005, 1.0005, 1.0)
+            << QVector3D(1.0005f, 1.0005f, 1.0)
             << false;
 
     QTest::newRow("45 line line in plane x=1")
diff --git a/tests/auto/threed/qsphere3d/tst_qsphere3d.cpp b/tests/auto/threed/qsphere3d/tst_qsphere3d.cpp
index 5f303a223..751a0a834 100644
--- a/tests/auto/threed/qsphere3d/tst_qsphere3d.cpp
+++ b/tests/auto/threed/qsphere3d/tst_qsphere3d.cpp
@@ -186,7 +186,7 @@ void tst_QSphere3D::transform()
 
     qreal tradius = m.mapVector(QVector3D(0, radius, 0)).length();
 
-    QCOMPARE(sphere1.center(), m * center);
+    QVERIFY(qFuzzyCompare(sphere1.center(), m * center));
     QCOMPARE(float(sphere1.radius()), float(tradius));
 }
 
diff --git a/tests/auto/threed/qtriangle3d/qtriangle3d.pro b/tests/auto/threed/qtriangle3d/qtriangle3d.pro
index 87c7e3cb2..b71b00fc2 100644
--- a/tests/auto/threed/qtriangle3d/qtriangle3d.pro
+++ b/tests/auto/threed/qtriangle3d/qtriangle3d.pro
@@ -6,3 +6,4 @@ CONFIG += warn_on
 
 SOURCES += tst_qtriangle3d.cpp
 DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0
+CONFIG+=insignificant_test  # See QTBUG-27189