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/****************************************************************************
**
** Copyright (C) 2015 Klaralvdalens Datakonsult AB (KDAB).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the Qt3D module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL3$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see http://www.qt.io/terms-conditions. For further
** information use the contact form at http://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPLv3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or later as published by the Free
** Software Foundation and appearing in the file LICENSE.GPL included in
** the packaging of this file. Please review the following information to
** ensure the GNU General Public License version 2.0 requirements will be
** met: http://www.gnu.org/licenses/gpl-2.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qclipplane.h"
#include <Qt3DRender/private/qrenderstate_p.h>
QT_BEGIN_NAMESPACE
namespace Qt3DRender {
class QClipPlanePrivate : public QRenderStatePrivate
{
public:
QClipPlanePrivate()
: QRenderStatePrivate(QRenderState::ClipPlane)
, m_plane(0)
{}
int m_plane;
};
/*!
\class Qt3DCore::QClipPlane
\inmodule Qt3DRenderer
\since 5.5
\brief Enables an additional OpenGL clipping plane that can be in shaders
using gl_ClipDistance
By default, OpenGL supports up to 8 additional clipping planes.
Qt3DCore::QClipPlane allows to enable one of these additional planes. These
planes can then be manipulated in the shaders using gl_ClipDistance[i]
where i varies between 0 and 8.
*/
/*!
\qmltype ClipPlane
\instantiates Qt3DCore::QClipPlane
\inherits RenderState
\inqmlmodule Qt3D.Renderer
\since 5.5
\brief Enables an additional OpenGL clipping plane that can be in shaders
using gl_ClipDistance
By default, OpenGL supports up to 8 additional clipping planes. ClipPlane
allows to enable one of these additional planes. These planes can then be
manipulated in the shaders using gl_ClipDistance[i] where i varies between
0 and 8.
*/
QClipPlane::QClipPlane(QNode *parent)
: QRenderState(*new QClipPlanePrivate(), parent)
{
}
QClipPlane::~QClipPlane()
{
QNode::cleanup();
}
/*!
* Returns the index of the clip plane.
* \note usually between 0-7
*/
int QClipPlane::plane() const
{
Q_D(const QClipPlane);
return d->m_plane;
}
/*!
* Sets the index of the clip plane to \a plane.
* \note above 7, support is not garanteed
*/
void QClipPlane::setPlane(int plane)
{
Q_D(QClipPlane);
if (plane != d->m_plane) {
d->m_plane = plane;
Q_EMIT planeChanged();
}
}
void QClipPlane::copy(const QNode *ref)
{
QRenderState::copy(ref);
const QClipPlane *refClip = static_cast<const QClipPlane *>(ref);
d_func()->m_plane = refClip->plane();
}
} // namespace Qt3DRender
QT_END_NAMESPACE
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