/* | |
* Copyright (c) 2009-2010 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, | |
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS | |
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
*/ | |
package com.jme3.scene.plugins.blender.lights; | |
import com.jme3.asset.BlenderKey.FeaturesToLoad; | |
import com.jme3.light.DirectionalLight; | |
import com.jme3.light.Light; | |
import com.jme3.light.PointLight; | |
import com.jme3.light.SpotLight; | |
import com.jme3.math.ColorRGBA; | |
import com.jme3.math.FastMath; | |
import com.jme3.scene.plugins.blender.AbstractBlenderHelper; | |
import com.jme3.scene.plugins.blender.BlenderContext; | |
import com.jme3.scene.plugins.blender.BlenderContext.LoadedFeatureDataType; | |
import com.jme3.scene.plugins.blender.exceptions.BlenderFileException; | |
import com.jme3.scene.plugins.blender.file.Structure; | |
import java.util.logging.Level; | |
import java.util.logging.Logger; | |
/** | |
* A class that is used in light calculations. | |
* @author Marcin Roguski | |
*/ | |
public class LightHelper extends AbstractBlenderHelper { | |
private static final Logger LOGGER = Logger.getLogger(LightHelper.class.getName()); | |
/** | |
* This constructor parses the given blender version and stores the result. Some functionalities may differ in | |
* different blender versions. | |
* @param blenderVersion | |
* the version read from the blend file | |
* @param fixUpAxis | |
* a variable that indicates if the Y asxis is the UP axis or not | |
*/ | |
public LightHelper(String blenderVersion, boolean fixUpAxis) { | |
super(blenderVersion, fixUpAxis); | |
} | |
public Light toLight(Structure structure, BlenderContext blenderContext) throws BlenderFileException { | |
Light result = (Light) blenderContext.getLoadedFeature(structure.getOldMemoryAddress(), LoadedFeatureDataType.LOADED_FEATURE); | |
if (result != null) { | |
return result; | |
} | |
int type = ((Number) structure.getFieldValue("type")).intValue(); | |
switch (type) { | |
case 0://Lamp | |
result = new PointLight(); | |
float distance = ((Number) structure.getFieldValue("dist")).floatValue(); | |
((PointLight) result).setRadius(distance); | |
break; | |
case 1://Sun | |
LOGGER.log(Level.WARNING, "'Sun' lamp is not supported in jMonkeyEngine."); | |
break; | |
case 2://Spot | |
result = new SpotLight(); | |
//range | |
((SpotLight)result).setSpotRange(((Number) structure.getFieldValue("dist")).floatValue()); | |
//outer angle | |
float outerAngle = ((Number) structure.getFieldValue("spotsize")).floatValue()*FastMath.DEG_TO_RAD * 0.5f; | |
((SpotLight)result).setSpotOuterAngle(outerAngle); | |
//inner angle | |
float spotblend = ((Number) structure.getFieldValue("spotblend")).floatValue(); | |
spotblend = FastMath.clamp(spotblend, 0, 1); | |
float innerAngle = outerAngle * (1 - spotblend); | |
((SpotLight)result).setSpotInnerAngle(innerAngle); | |
break; | |
case 3://Hemi | |
LOGGER.log(Level.WARNING, "'Hemi' lamp is not supported in jMonkeyEngine."); | |
break; | |
case 4://Area | |
result = new DirectionalLight(); | |
break; | |
default: | |
throw new BlenderFileException("Unknown light source type: " + type); | |
} | |
if (result != null) { | |
float r = ((Number) structure.getFieldValue("r")).floatValue(); | |
float g = ((Number) structure.getFieldValue("g")).floatValue(); | |
float b = ((Number) structure.getFieldValue("b")).floatValue(); | |
result.setColor(new ColorRGBA(r, g, b, 1.0f)); | |
} | |
return result; | |
} | |
@Override | |
public boolean shouldBeLoaded(Structure structure, BlenderContext blenderContext) { | |
return (blenderContext.getBlenderKey().getFeaturesToLoad() & FeaturesToLoad.LIGHTS) != 0; | |
} | |
} |