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  /external/chromium_org/third_party/WebKit/Source/core/platform/graphics/filters/
SpotLightSource.cpp 91 float lightStrength;
94 lightStrength = 1.0f; // -cosineOfAngle ^ 0 == 1
97 lightStrength = -cosineOfAngle; // -cosineOfAngle ^ 1 == -cosineOfAngle
100 lightStrength = powf(-cosineOfAngle, m_specularExponent);
105 lightStrength *= (paintingData.coneCutOffLimit - cosineOfAngle) / (paintingData.coneCutOffLimit - paintingData.coneFullLight);
107 if (lightStrength > 1.0f)
108 lightStrength = 1.0f;
110 paintingData.colorVector.setX(paintingData.privateColorVector.x() * lightStrength);
111 paintingData.colorVector.setY(paintingData.privateColorVector.y() * lightStrength);
112 paintingData.colorVector.setZ(paintingData.privateColorVector.z() * lightStrength);
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FELighting.cpp 188 float lightStrength;
192 lightStrength = m_diffuseConstant * paintingData.lightVector.z() / paintingData.lightVectorLength;
198 lightStrength = m_specularConstant * halfwayVector.z() / halfwayVectorLength;
200 lightStrength = m_specularConstant * powf(halfwayVector.z() / halfwayVectorLength, m_specularExponent);
210 lightStrength = m_diffuseConstant * (normalVector * paintingData.lightVector) / (normalVectorLength * paintingData.lightVectorLength);
216 lightStrength = m_specularConstant * (normalVector * halfwayVector) / (normalVectorLength * halfwayVectorLength);
218 lightStrength = m_specularConstant * powf((normalVector * halfwayVector) / (normalVectorLength * halfwayVectorLength), m_specularExponent);
222 if (lightStrength > 1)
223 lightStrength = 1;
224 if (lightStrength < 0
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