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/*
 * Copyright (c) 2009-2021 jMonkeyEngine
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *
 * * Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 *
 * * Redistributions in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in the
 *   documentation and/or other materials provided with the distribution.
 *
 * * Neither the name of 'jMonkeyEngine' nor the names of its contributors
 *   may be used to endorse or promote products derived from this software
 *   without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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 */
package com.jme3.shadow;

import com.jme3.asset.AssetManager;
import com.jme3.shadow.DirectionalLightShadowRenderer;

/**
 * DirectionalLightShadowRenderer renderer use Parallel Split Shadow Mapping
 * technique (pssm)
 It splits the view frustum in several parts and compute
 * a shadow map for each one.
 splits are distributed so that the closer they
 * are from the camera, the smaller they are to maximize the resolution used of
 * the shadow map.
 This results in a better quality shadow than standard
 * shadow mapping.
 for more information on this read http://http.developer.nvidia.com/GPUGems3/gpugems3_ch10.html

 *
 * @author Rémy Bouquet aka Nehon
 * @deprecated The jme3-vr module is deprecated and will be removed in a future version (as it only supports OpenVR).
 *             For new Virtual Reality projects, use user libraries that provide OpenXR support.
 *             See Virtual Reality JME wiki section
 *             for more information.
 */
@Deprecated
public class VRDirectionalLightShadowRenderer extends DirectionalLightShadowRenderer {

    /**
     * Create an OculusDirectionalLightShadowRenderer More info on the technique at http://http.developer.nvidia.com/GPUGems3/gpugems3_ch10.html
     *
     * @param assetManager the application asset manager
     * @param shadowMapSize the size of the rendered shadowmaps (512,1024,2048,
     * etc...)
     * @param nbSplits the number of shadow maps rendered (More shadow maps
     * result in higher quality, fewer fps.)
     */
    public VRDirectionalLightShadowRenderer(AssetManager assetManager, int shadowMapSize, int nbSplits) {
        super(assetManager, shadowMapSize, nbSplits);
    }
    
    @Override
    public VRDirectionalLightShadowRenderer clone() {
        VRDirectionalLightShadowRenderer clone = new VRDirectionalLightShadowRenderer(assetManager, (int)shadowMapSize, nbShadowMaps);
        clone.setEdgeFilteringMode(getEdgeFilteringMode());
        clone.setEdgesThickness(getEdgesThickness());
        clone.setEnabledStabilization(isEnabledStabilization());
        clone.setLambda(getLambda());
        clone.setLight(getLight());
        clone.setShadowCompareMode(getShadowCompareMode());
        clone.setShadowIntensity(getShadowIntensity());
        clone.setShadowZExtend(getShadowZExtend());
        clone.setShadowZFadeLength(getShadowZFadeLength());
        return clone;
    }
}