ComposedShader.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_SCENEDESCRIPTION_SDX_X3D_COMPOSED_SHADER_H
#define META_OCEAN_SCENEDESCRIPTION_SDX_X3D_COMPOSED_SHADER_H
 
#include "ocean/scenedescription/sdx/x3d/X3D.h"
#include "ocean/scenedescription/sdx/x3d/X3DProgrammableShaderObject.h"
#include "ocean/scenedescription/sdx/x3d/X3DShaderNode.h"
 
#include "ocean/rendering/ShaderProgram.h"
 
#include "ocean/scenedescription/SDXDynamicNode.h"
 
namespace Ocean
{
 
namespace SceneDescription
{
 
namespace SDX
{
 
namespace X3D
{
 
/**
 * This class implements a x3d composed shader node.
 * @ingroup scenedescriptionsdxx3d
 */
class OCEAN_SCENEDESCRIPTION_SDX_X3D_EXPORT ComposedShader :
    virtual public X3DProgrammableShaderObject,
    virtual public X3DShaderNode,
    virtual public SDXDynamicNode
{
    public:
 
        /**
         * Creates a new packaged shader node.
         * @param environment Node environment
         */
        ComposedShader(const SDXEnvironment* environment);
 
    protected:
 
        /**
         * Specifies the node type and the fields of this node.
         * @return Unique node specification of this node
         */
        NodeSpecification specifyNode();
 
        /**
         * Event function to inform the node that it has been initialized and can apply all internal values to corresponding rendering objects.
         * @see SDXNode::onInitialize().
         */
        void onInitialize(const Rendering::SceneRef& scene, const Timestamp timestamp) override;
 
        /**
         * Event function to inform the node about a changed field.
         * @see SDXNode::onFieldChanged().
         */
        void onFieldChanged(const std::string& fieldName) override;
 
        /**
         * Applies a given parameter to the shader.
         * @param shaderProgram Shader program holding the parameter to be updated
         * @param fieldName Name of the field to apply
         * @return True, if succeeded
         */
        bool applyParameter(const Rendering::ShaderProgramRef& shaderProgram, const std::string& fieldName);
 
        /**
         * Returns the address of the most derived object.
         * @see Node::objectAddress().
         */
        size_t objectAddress() const override;
 
    protected:
 
        /// The parts field.
        MultiNode parts_;
};
 
}
 
}
 
}
 
}
 
#endif // META_OCEAN_SCENEDESCRIPTION_SDX_X3D_COMPOSED_SHADER_H