75     static const float norm = 1. / (1 << 12);  variable
76     return value * volume * norm;
81     static const float norm = 1. / (1 << 28);  variable
82     return value * volume * norm;
97     static const float norm = 1. / (1 << (15 + 12));  variable
98     return static_cast<float>(value) * static_cast<float>(volume) * norm;
103     static const float norm = 1. / (1ULL << (15 + 28));  variable
104     return static_cast<float>(value) * static_cast<float>(volume) * norm;
182     static constexpr float norm = 1. / (1 << 15);  variable
183     *auxaccum += norm * value;
188     static constexpr float norm = 1. / (1 << 27);  variable
189     *auxaccum += norm * value;