module.exports = ['#ifdef USE_DIFFUSE_MAP', '    #if (USE_DIFFUSE_MAP == 1)', '        vec4 texelColor = texture2D( diffuseMap, v_Uv );', '    #elif (USE_DIFFUSE_MAP == 2)', '        vec4 texelColor = texture2D( diffuseMap, v_Uv2 );', '    #else', '        vec4 texelColor = texture2D( diffuseMap, v_Uv );', '    #endif', '', '    texelColor = mapTexelToLinear( texelColor );', '', '    outColor *= texelColor;', '#endif'] .join('\n');