text: #ifndef SCENE_SPHERE_H_
  #define SCENE_SPHERE_H_
  
  #include <stdint.h>
  #include <cuda_runtime.h>
  
  typedef struct Sphere {
      float3 position;
      float radius;
      uint64_t material;
  } Sphere;
  
  #endif // SCENE_SPHERE_H_
  