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libigl_Martin
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embree
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ambient_occlusion.h

ambient_occlusion.h 1.6 KB
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  1. #ifndef IGL_AMBIENT_OCCLUSION_H
    2. 

  2. #define IGL_AMBIENT_OCCLUSION_H
    3. 

  3. #include <igl/igl_inline.h>
    4. 

  4. #include <Eigen/Core>
    5. 

  5. namespace igl
    6. 

  6. {
    7. 

  7.   // Forward define
    8. 

  8.   template <
    9. 

  9.     typename PointMatrixType,
    10. 

  10.     typename FaceMatrixType,
    11. 

  11.     typename RowVector3>
    12. 

  12.   class EmbreeIntersector;
    13. 

  13.   // Compute ambient occlusion per given point
    14. 

  14.   //
    15. 

  15.   // Inputs:
    16. 

  16.   //    ei  EmbreeIntersector containing (V,F)
    17. 

  17.   //    P  #P by 3 list of origin points
    18. 

  18.   //    N  #P by 3 list of origin normals
    19. 

  19.   // Outputs:
    20. 

  20.   //    S  #P list of ambient occlusion values between 1 (fully occluded) and 0
    21. 

  21.   //      (not occluded)
    22. 

  22.   //
    23. 

  23.   template <
    24. 

  24.     typename PointMatrixType,
    25. 

  25.     typename FaceMatrixType,
    26. 

  26.     typename RowVector3,
    27. 

  27.     typename DerivedP,
    28. 

  28.     typename DerivedN,
    29. 

  29.     typename DerivedS >
    30. 

  30.   void ambient_occlusion(
    31. 

  31.     const igl::EmbreeIntersector<PointMatrixType,FaceMatrixType,RowVector3> & ei,
    32. 

  32.     const Eigen::PlainObjectBase<DerivedP> & P,
    33. 

  33.     const Eigen::PlainObjectBase<DerivedN> & N,
    34. 

  34.     const int num_samples,
    35. 

  35.     Eigen::PlainObjectBase<DerivedS> & S);
    36. 

  36.   // Wrapper which builds new EmbreeIntersector for (V,F). That's expensive so
    37. 

  37.   // avoid this if repeatedly calling.
    38. 

  38.   template <
    39. 

  39.     typename DerivedV,
    40. 

  40.     typename DerivedF,
    41. 

  41.     typename DerivedP,
    42. 

  42.     typename DerivedN,
    43. 

  43.     typename DerivedS >
    44. 

  44.   void ambient_occlusion(
    45. 

  45.     const Eigen::PlainObjectBase<DerivedV> & V,
    46. 

  46.     const Eigen::PlainObjectBase<DerivedF> & F,
    47. 

  47.     const Eigen::PlainObjectBase<DerivedP> & P,
    48. 

  48.     const Eigen::PlainObjectBase<DerivedN> & N,
    49. 

  49.     const int num_samples,
    50. 

  50.     Eigen::PlainObjectBase<DerivedS> & S);
    51. 

  51. };
    52. 

  52. #ifdef IGL_HEADER_ONLY
    53. 

  53. #  include "ambient_occlusion.cpp"
    54. 

  54. #endif
    55. 

  55. 

  56. #endif
    57.