GLESSwitch.h

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/*
 * Copyright (c) Meta Platforms, Inc. and affiliates.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 */
 
#ifndef META_OCEAN_RENDERING_GLES_SWITCH_H
#define META_OCEAN_RENDERING_GLES_SWITCH_H
 
#include "ocean/rendering/glescenegraph/GLESceneGraph.h"
#include "ocean/rendering/glescenegraph/GLESGroup.h"
 
#include "ocean/rendering/Switch.h"
 
namespace Ocean
{
 
namespace Rendering
{
 
namespace GLESceneGraph
{
 
/**
 * This class implements an OpenGLESceneGraph switch node.
 * @see Switch
 * @ingroup renderinggles
 */
class OCEAN_RENDERING_GLES_EXPORT GLESSwitch :
    virtual public GLESGroup,
    virtual public Switch
{
    friend class GLESFactory;
 
    public:
 
        /**
         * Returns the index of the active node.
         * @see Switch::activeNode().
         */
        Index32 activeNode() const override;
 
        /**
         * Sets the index of the active node.
         * @see Switch::setActiveNode().
         */
        void setActiveNode(const Index32 index) override;
 
        /**
         * Adds this node and all child node to a traverser.
         * @see GLESNode::addToTraverser().
         */
        void addToTraverser(const GLESFramebuffer& framebuffer, const SquareMatrix4& projectionMatrix, const HomogenousMatrix4& camera_T_parent, const Lights& lights, GLESTraverser& traverser) const override;
 
    private:
 
        /**
         * Creates a new OpenGLESceneGraph switch object.
         */
        GLESSwitch();
 
        /**
         * Destructs an OpenGLESceneGraph switch object.
         */
        ~GLESSwitch() override;
 
    private:
 
        /// Index of the child to render.
        Index32 activeNodeIndex_ = invalidIndex;
};
 
}
 
}
 
}
 
#endif // META_OCEAN_RENDERING_GLES_SWITCH_H