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/****************************************************************************
**
** Copyright (C) 2014 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.
**
** $QT_END_LICENSE$
**
****************************************************************************/

#ifndef GBUFFER_H
#define GBUFFER_H

#include <Qt3DRender/QRenderTarget>
#include <Qt3DRender/qtexture.h>
#include <Qt3DRender/QRenderAttachment>

class GBuffer : public Qt3DRender::QRenderTarget
{
public:
    explicit GBuffer(Qt3DCore::QNode *parent = 0);

    enum Attachments {
        Color = 0,
        Position,
        Normal,
        Depth,
        AttachmentsCount
    };

    Qt3DRender::QAbstractTextureProvider *colorTexture() const;
    Qt3DRender::QAbstractTextureProvider *positionTexture() const;
    Qt3DRender::QAbstractTextureProvider *normalTexture() const;
    Qt3DRender::QAbstractTextureProvider *depthTexture() const;

private:
    Qt3DRender::QAbstractTextureProvider *m_textures[AttachmentsCount];
    Qt3DRender::QRenderAttachment *m_attachments[AttachmentsCount];
};

#endif // GBUFFER_H