/*
* Copyright (c) 2009-2015 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
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.jme3.light;
import com.jme3.bounding.BoundingBox;
import com.jme3.bounding.BoundingSphere;
import com.jme3.bounding.BoundingVolume;
import com.jme3.renderer.Camera;
import com.jme3.scene.Geometry;
import com.jme3.util.TempVars;
import java.util.HashSet;
public final class DefaultLightFilter implements LightFilter {
private Camera camera;
private final HashSet<Light> processedLights = new HashSet<Light>();
private final LightProbeBlendingStrategy probeBlendStrat;
public DefaultLightFilter() {
probeBlendStrat = new BasicProbeBlendingStrategy();
}
public DefaultLightFilter(LightProbeBlendingStrategy probeBlendStrat) {
this.probeBlendStrat = probeBlendStrat;
}
@Override
public void setCamera(Camera camera) {
this.camera = camera;
for (Light light : processedLights) {
light.frustumCheckNeeded = true;
}
}
@Override
public void filterLights(Geometry geometry, LightList filteredLightList) {
TempVars vars = TempVars.get();
try {
LightList worldLights = geometry.getWorldLightList();
for (int i = 0; i < worldLights.size(); i++) {
Light light = worldLights.get(i);
// If this light is not enabled it will be ignored.
if (!light.isEnabled()) {
continue;
}
if (light.frustumCheckNeeded) {
processedLights.add(light);
light.frustumCheckNeeded = false;
light.intersectsFrustum = light.intersectsFrustum(camera, vars);
}
if (!light.intersectsFrustum) {
continue;
}
BoundingVolume bv = geometry.getWorldBound();
if (bv instanceof BoundingBox) {
if (!light.intersectsBox((BoundingBox)bv, vars)) {
continue;
}
} else if (bv instanceof BoundingSphere) {
if (!Float.isInfinite( ((BoundingSphere)bv).getRadius() )) {
if (!light.intersectsSphere((BoundingSphere)bv, vars)) {
continue;
}
}
}
if (light.getType() == Light.Type.Probe) {
probeBlendStrat.registerProbe((LightProbe) light);
} else {
filteredLightList.add(light);
}
}
probeBlendStrat.populateProbes(geometry, filteredLightList);
} finally {
vars.release();
}
}
}