Revision control
++ // Copyright (C) 2019 Klaralvdalens Datakonsult AB (KDAB).
++ // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
++
++ #include "qdepthrange.h"
++ #include "qdepthrange_p.h"
++
++ QT_BEGIN_NAMESPACE
++
++ namespace Qt3DRender {
++
++ /*!
++ \class Qt3DRender::QDepthRange
++ \inmodule Qt3DRender
++ \since 5.14
++ \ingroup renderstates
++ \brief Enables remapping depth values written into the depth buffer.
++
++ By default, OpenGL writes scene depth information into the depth buffer in
++ the range [0.0, 1.0] with 0.0 corresponding to the near clip plane and 1.0 to
++ the far clip plane. QDepthRange allows mapping these values into a different
++ range so parts of the scene are always rendered in front of or behind other
++ parts. Valid values for near and far are between 0 and 1.
++ */
++
++ /*!
++ \qmltype DepthRange
++ \nativetype Qt3DRender::QDepthRange
++ \inherits RenderState
++ \inqmlmodule Qt3D.Render
++ \ingroup renderstates
++ \since 5.14
++ \brief Enables remapping depth values written into the depth buffer.
++
++ By default, OpenGL writes scene depth information into the depth buffer in
++ the range [0.0, 1.0] corresponding to the near and far clip planes.
++ QDepthRange allows mapping these values into a different range. For example
++ setting the range [0.0, 0.5] will map the rendered scene into the depth
++ buffer such that objects at the near clip plane have depth value of 0.0 and
++ objects at the far clip plane have a depth value of 0.5. This allows
++ rendering parts of the scene always in front of or behind other parts.
++ */
++
++ /*!
++ \qmlproperty real DepthRange::nearValue
++ The depth buffer value corresponding to the near clip plane. Valid values for are
++ between 0 and 1.
++ */
++
++ /*!
++ \qmlproperty real DepthRange::farValue
++ The depth buffer value corresponding to the far clip plane. Valid values for are
++ between 0 and 1.
++ */
++
++ /*!
++ \property Qt3DRender::QDepthRange::nearValue
++ The depth buffer value corresponding to the near clip plane. Valid values for are
++ between 0 and 1.
++ */
++
++ /*!
++ \property Qt3DRender::QDepthRange::farValue
++ The depth buffer value corresponding to the far clip plane. Valid values for are
++ between 0 and 1.
++ */
++
++ QDepthRange::QDepthRange(QNode *parent)
++ : QRenderState(*new QDepthRangePrivate(), parent)
++ {
++ }
++
++ /*! \internal */
++ QDepthRange::~QDepthRange()
++ {
++ }
++
++ double QDepthRange::nearValue() const
++ {
++ Q_D(const QDepthRange);
++ return d->m_nearValue;
++ }
++
++ double QDepthRange::farValue() const
++ {
++ Q_D(const QDepthRange);
++ return d->m_farValue;
++ }
++
++ void QDepthRange::setNearValue(double value)
++ {
++ Q_D(QDepthRange);
++ if (value != d->m_nearValue) {
++ d->m_nearValue = value;
++ Q_EMIT nearValueChanged(value);
++ }
++ }
++
++ void QDepthRange::setFarValue(double value)
++ {
++ Q_D(QDepthRange);
++ if (value != d->m_farValue) {
++ d->m_farValue = value;
++ Q_EMIT farValueChanged(value);
++ }
++ }
++
++ } // namespace Qt3DRender
++
++ QT_END_NAMESPACE
++
++ #include "moc_qdepthrange.cpp"