本文整理汇总了C++中Spectrum::isValid方法的典型用法代码示例。如果您正苦于以下问题：C++ Spectrum::isValid方法的具体用法？C++ Spectrum::isValid怎么用？C++ Spectrum::isValid使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类Spectrum的用法示例。
在下文中一共展示了Spectrum::isValid方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: defined
Photon::Photon(const Point &p, const Normal &normal,
const Vector &dir, const Spectrum &P,
uint16_t _depth) {
if (!P.isValid())
SLog(EWarn, "Creating an invalid photon with power: %s", P.toString().c_str());
/* Possibly convert to single precision floating point
(if Mitsuba is configured to use double precision) */
position = p;
data.depth = _depth;
flags = 0;
/* Convert the direction into an approximate spherical
coordinate format to reduce storage requirements */
data.theta = (uint8_t) std::min(255,
(int) (math::safe_acos(dir.z) * (256.0 / M_PI)));
int tmp = std::min(255,
(int) (std::atan2(dir.y, dir.x) * (256.0 / (2.0 * M_PI))));
if (tmp < 0)
data.phi = (uint8_t) (tmp + 256);
else
data.phi = (uint8_t) tmp;
if (normal.isZero()) {
data.thetaN = data.phiN = 0;
} else {
data.thetaN = (uint8_t) std::min(255,
(int) (math::safe_acos(normal.z) * (256.0 / M_PI)));
tmp = std::min(255,
(int) (std::atan2(normal.y, normal.x) * (256.0 / (2.0 * M_PI))));
if (tmp < 0)
data.phiN = (uint8_t) (tmp + 256);
else
data.phiN = (uint8_t) tmp;
}
#if defined(SINGLE_PRECISION) && SPECTRUM_SAMPLES == 3
/* Pack the photon power into Greg Ward's RGBE format */
P.toRGBE(data.power);
#else
data.power = P;
#endif
}