1 /** @file stv_harmonics.h

2 *

3 * @brief Sphericals Harmonics Effect

4 *

5 ******************************************************************************************************************

6 *

7 * @author Stv based on Paul Bourke's web site (http://astronomy.swin.edu.au/~pbourke/surfaces/sphericalh/)

8 *

9 * @date Created 2003/10

10 *

11 * @version $Id: efx_harmonics.h,v 1.6 2004/01/17 08:37:27 psc80 Exp $

12 *

13 ******************************************************************************************************************/

14

15 #ifndef EFX_SPHERICAL_H

16 #define EFX_SPHERICAL_H

17

18 #include "mth_vector3.h"

19 #include "mth_vector2.h"

20 #include "cmn_shape.h"

21

22 class efxSpherical_t;

23

24 class efxSphericalShape_t : public cmnSquareShape_t

25 {

26 int params[8];

27

28 mth::Vector3_t ComputeVertex(double _theta, double _phi,double _scale);

29 mth::Vector3_t ComputeNormal(const mth::Vector3_t& _a,const mth::Vector3_t& _b, const mth::Vector3_t& _c);

30

31 GLuint textureBase;

32

33 public:

34

35 efxSphericalShape_t():cmnSquareShape_t() {textureBase=0;}

36

37 // specify params or use random

38 void Params(int _a0,int _a1,int _a2,int _a3,int _a4,int _a5,int _a6,int _a7);

39 void RandomizeParams();

40

41 // generate shape with a scale factor

42 void Generate(float _scale,bool _reverse=false);

43

44 void Draw() ;

45 void SetTexture(GLuint _id) { textureBase=_id;}

46

47 };

48

49

50

51 class efxSpherical_t

52 {

53

54 int nbShapes;

55 int resolutions;

56

57 efxSphericalShape_t* shapes;

58

59 //shape used to morph

60 efxSphericalShape_t morph;

61

62 // shared uvs

63 mth::Vector2_t* uvs;

64

65 public:

66

67 efxSpherical_t(){ shapes=0;uvs=0;}

68 ~efxSpherical_t(){}

69

70

71 void Init(int _nbShapes,int _resolutions,float _scale=15);

72

73

74 int NbShapes() { return nbShapes;}

75

76 int ResolutionOfGrid() { return resolutions;}

77

78 void Kill();

79

80

81 /// morph a shape 1 with a shape 2 with a range t [0-1]. the result is into morph, given by MorphShape

82 void MakeMorph(int _shape1,int _shape2,float _t);

83

84 efxSphericalShape_t& MorphShape() { return morph;}

85

86

87 efxSphericalShape_t& Shape(int _i) { return shapes[_i];}

88

89 void SetTexture(GLuint _id);

90

91 };

92

93

94 #endif