GLESDirectionalLight.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_DIRECTIONAL_LIGHT_H
#define META_OCEAN_RENDERING_GLES_DIRECTIONAL_LIGHT_H
 
#include "ocean/rendering/glescenegraph/GLESceneGraph.h"
#include "ocean/rendering/glescenegraph/GLESLightSource.h"
 
#include "ocean/rendering/DirectionalLight.h"
 
namespace Ocean
{
 
namespace Rendering
{
 
namespace GLESceneGraph
{
 
/**
 * This class implements a GLESceneGraph directional light object.
 * @ingroup renderinggles
 */
class OCEAN_RENDERING_GLES_EXPORT GLESDirectionalLight :
    virtual public GLESLightSource,
    virtual public DirectionalLight
{
    friend class GLESFactory;
 
    public:
 
        /**
         * Returns the direction of this directional light.
         * @see DirectionalLight::direction().
         */
        Vector3 direction() const override;
 
        /**
         * Sets the direction of this directional light.
         * @see DirectionalLight::setDirection().
         */
        void setDirection(const Vector3& direction) override;
 
        /**
         * Binds this light source.
         * @see GLESLightSource::bindLight().
         */
        void bindLight(GLESShaderProgram& shaderProgram, const HomogenousMatrix4& camera_T_model, const HomogenousMatrix4& camera_T_world, const SquareMatrix3& normalMatrix, const unsigned int index) override;
 
    protected:
 
        /**
         * Creates a new GLESceneGraph directional light object.
         */
        GLESDirectionalLight();
 
        /**
         * Destructs a GLESceneGraph directional light object.
         */
        ~GLESDirectionalLight() override;
 
    protected:
 
        /// Direction of the light in relation to the local coordinate system.
        Vector3 direction_;
};
 
}
 
}
 
}
 
#endif // META_OCEAN_RENDERING_GLES_DIRECTIONAL_LIGHT_H