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// Copyright (C) 2019 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
#include <QTest>
#include <QSignalSpy>
#include <QtQuick3D/private/qquick3dfrustumcamera_p.h>
#include <QtQuick3DRuntimeRender/private/qssgrendercamera_p.h>
class tst_QQuick3DFrustumCamera : public QObject
{
Q_OBJECT
// Work-around to get access to updateSpatialNode
class Camera : public QQuick3DFrustumCamera
{
public:
using QQuick3DCamera::updateSpatialNode;
};
private slots:
void testClipAndFov();
void testFrustum();
};
void tst_QQuick3DFrustumCamera::testClipAndFov()
{
Camera camera;
auto node = static_cast<QSSGRenderCamera *>(camera.updateSpatialNode(nullptr));
const auto originalNode = node; // for comparisons later...
QVERIFY(node);
const float clipNear = 0.2f;
camera.setClipNear(clipNear);
node = static_cast<QSSGRenderCamera *>(camera.updateSpatialNode(node));
QCOMPARE(originalNode, node);
QVERIFY(node->isDirty(QSSGRenderCamera::DirtyFlag::CameraDirty));
QCOMPARE(clipNear, node->clipPlanes.clipNear());
const float clipFar = 0.4f;
camera.setClipFar(clipFar);
node = static_cast<QSSGRenderCamera *>(camera.updateSpatialNode(node));
QCOMPARE(originalNode, node);
QVERIFY(node->isDirty(QSSGRenderCamera::DirtyFlag::CameraDirty));
QCOMPARE(clipFar, node->clipPlanes.clipFar());
const float fov = 6.2f;
camera.setFieldOfView(fov);
node = static_cast<QSSGRenderCamera *>(camera.updateSpatialNode(node));
QCOMPARE(originalNode, node);
QVERIFY(node->isDirty(QSSGRenderCamera::DirtyFlag::CameraDirty));
QCOMPARE(fov, node->fov.degrees()); // We use degrees in the front-end API
const QQuick3DPerspectiveCamera::FieldOfViewOrientation fovOrientation
= QQuick3DPerspectiveCamera::FieldOfViewOrientation::Horizontal;
camera.setFieldOfViewOrientation(fovOrientation);
node = static_cast<QSSGRenderCamera *>(camera.updateSpatialNode(node));
QCOMPARE(originalNode, node);
QVERIFY(node->isDirty(QSSGRenderCamera::DirtyFlag::CameraDirty));
QVERIFY(node->fov.orientation() == QSSGRenderCamera::FieldOfView::Orientation::Horizontal);
camera.setFieldOfViewOrientation(QQuick3DPerspectiveCamera::FieldOfViewOrientation::Vertical);
node = static_cast<QSSGRenderCamera *>(camera.updateSpatialNode(node));
QVERIFY(node->fov.orientation() == QSSGRenderCamera::FieldOfView::Orientation::Vertical);
}
void tst_QQuick3DFrustumCamera::testFrustum()
{
Camera camera;
auto node = static_cast<QSSGRenderCamera *>(camera.updateSpatialNode(nullptr));
const auto originalNode = node; // for comparisons later...
QVERIFY(node);
const float frustumBottom = 0.54f;
camera.setBottom(frustumBottom);
const float frustumTop = 0.242f;
camera.setTop(frustumTop);
const float frustumLeft = 0.74f;
camera.setLeft(frustumLeft);
const float frustumRight = 1.0f;
camera.setRight(frustumRight);
node = static_cast<QSSGRenderCamera *>(camera.updateSpatialNode(node));
QCOMPARE(originalNode, node);
QVERIFY(node->isDirty(QSSGRenderCamera::DirtyFlag::CameraDirty));
QCOMPARE(frustumBottom, node->customFrustum.bottom);
QCOMPARE(frustumTop, node->customFrustum.top);
QCOMPARE(frustumLeft, node->customFrustum.left);
QCOMPARE(frustumRight, node->customFrustum.right);
}
QTEST_APPLESS_MAIN(tst_QQuick3DFrustumCamera)
#include "tst_qquick3dfrustumcamera.moc"
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