qssgrendercamera.cpp File Reference

#include "qssgrendercamera_p.h"
#include <QtQuick3DRuntimeRender/private/qssgrendererutil_p.h>
#include <QtQuick3DUtils/private/qssgutils_p.h>
#include <QtGui/QVector2D>
#include <qmath.h>

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Namespaces
namespace	QT_BEGIN_NAMESPACE
	Combined button and popup list for selecting options.

Functions
float	QT_BEGIN_NAMESPACE::getAspectRatio (const QRectF &inViewport)
static QQuaternion	rotationQuaternionForLookAt (const QVector3D &sourcePosition, const QVector3D &sourceDirection, const QVector3D &targetPosition, const QVector3D &upDirection)
static float	getZNear (const QMatrix4x4 &projection)
static QVector2D	getViewportHalfExtents (const QMatrix4x4 &projection)

Function Documentation

getViewportHalfExtents()

static QVector2D getViewportHalfExtents ( const QMatrix4x4 &  projection )

static

Definition at line 252 of file qssgrendercamera.cpp.

References QMatrix4x4::constData(), QVector3D::crossProduct(), QSSGPlane::d, QVector3D::dotProduct(), QSSGPlane::n, QSSGPlane::normalize(), qFuzzyIsNull(), QVector3D::x(), and QVector3D::y().

Referenced by QSSGRenderCamera::getLevelOfDetailMultiplier().

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getZNear()

static float getZNear ( const QMatrix4x4 &  projection )

static

Definition at line 244 of file qssgrendercamera.cpp.

References QMatrix4x4::constData(), QSSGPlane::d, and QSSGPlane::normalize().

Referenced by QSSGRenderCamera::getLevelOfDetailMultiplier().

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rotationQuaternionForLookAt()

static QQuaternion rotationQuaternionForLookAt ( const QVector3D &  sourcePosition, const QVector3D &  sourceDirection, const QVector3D &  targetPosition, const QVector3D &  upDirection  )

static

Definition at line 121 of file qssgrendercamera.cpp.

References QVector3D::crossProduct(), dot(), QVector3D::dotProduct(), QQuaternion::fromAxisAndAngle(), QVector3D::lengthSquared(), QVector3D::normalize(), QVector3D::normalized(), qAcos(), qFuzzyIsNull(), and qRadiansToDegrees().

Referenced by QSSGRenderCamera::lookAt().

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