//This file is automatically rebuilt by the Cesium build process.
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export default "varying vec3 v_positionEC;\n\
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varying vec3 v_normalEC;\n\
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varying vec3 v_tangentEC;\n\
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varying vec3 v_bitangentEC;\n\
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varying vec2 v_st;\n\
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\n\
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void main()\n\
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{\n\
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vec3 positionToEyeEC = -v_positionEC;\n\
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mat3 tangentToEyeMatrix = czm_tangentToEyeSpaceMatrix(v_normalEC, v_tangentEC, v_bitangentEC);\n\
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\n\
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vec3 normalEC = normalize(v_normalEC);\n\
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#ifdef FACE_FORWARD\n\
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normalEC = faceforward(normalEC, vec3(0.0, 0.0, 1.0), -normalEC);\n\
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#endif\n\
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\n\
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czm_materialInput materialInput;\n\
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materialInput.normalEC = normalEC;\n\
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materialInput.tangentToEyeMatrix = tangentToEyeMatrix;\n\
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materialInput.positionToEyeEC = positionToEyeEC;\n\
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materialInput.st = v_st;\n\
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czm_material material = czm_getMaterial(materialInput);\n\
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\n\
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#ifdef FLAT\n\
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gl_FragColor = vec4(material.diffuse + material.emission, material.alpha);\n\
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#else\n\
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gl_FragColor = czm_phong(normalize(positionToEyeEC), material, czm_lightDirectionEC);\n\
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#endif\n\
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}\n\
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";
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