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33 lines
948 B
C++
33 lines
948 B
C++
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#include "lightutil.hpp"
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#include <osg/Light>
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namespace SceneUtil
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{
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void configureLight(osg::Light *light, float radius, bool isExterior, bool outQuadInLin, bool useQuadratic,
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float quadraticValue, float quadraticRadiusMult, bool useLinear, float linearRadiusMult, float linearValue)
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{
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bool quadratic = useQuadratic && (!outQuadInLin || isExterior);
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float quadraticAttenuation = 0;
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float linearAttenuation = 0;
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if (quadratic)
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{
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float r = radius * quadraticRadiusMult;
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quadraticAttenuation = quadraticValue / std::pow(r, 2);
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}
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if (useLinear)
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{
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float r = radius * linearRadiusMult;
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linearAttenuation = linearValue / r;
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}
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light->setLinearAttenuation(linearAttenuation);
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light->setQuadraticAttenuation(quadraticAttenuation);
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light->setConstantAttenuation(0.f);
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}
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}
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