Commits on Jan 19, 2024

1. Added alignment definitions to RTCHitNt and RTCRayNt …

   Added alignment definitions to RTCHitNt and RTCRayNt templates so they match the C definitions provided. As the alignment calculation is nasty without requiring the alignof keyword, or constexpr functions, this could instead be hidden behind a macro. Maybe RTC_ALIGN_SOA_AT_LEAST(N, MIN)?
   
   The code is equivalent to:
   ```
   constexpr std::size_t AlignSOAAtLeast(unsigned N, std::size_t min_alignment) noexcept {
       if (std::has_single_bit<unsigned>(N)) {
           return std::max<std::size_t>(min_alignment, N * alignof(float));
       } else {
           return min_alignment;
       }
   }
   ```
   Checking this works is as simple as adding a few static assertions:
   ```
   static_assert(alignof(embree::RTCRayNt<1>) == alignof(embree::RTCRay));
   static_assert(alignof(embree::RTCRayNt<4>) == alignof(embree::RTCRay4));
   static_assert(alignof(embree::RTCRayNt<8>) == alignof(embree::RTCRay8));
   static_assert(alignof(embree::RTCRayNt<16>) == alignof(embree::RTCRay16));
   ```

   

   dbs4261 committed Jan 19, 2024
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