1 #include "material.h"

2 #include "unistate.h"

3

4 using namespace goatgfx;

5

6 Material::Material()

7 : diffuse(1, 1, 1), specular(0, 0, 0)

8 {

9 alpha = 1.0;

10 shininess = 1.0;

11

12 for(int i=0; i<MAX_MTL_TEXTURES; i++) {

13 tex[i] = 0;

14 }

15 }

16

17

18 void Material::setup(bool use_textures) const

19 {

20 static bool done_init;

21 static int st_diffuse_idx, st_specular_idx, st_shininess_idx, st_alpha_idx;

22 static int st_tex_diffuse_idx, st_tex_specular_idx, st_tex_normal_idx;

23 static int st_tex_idx[MAX_MTL_TEXTURES];

24

25 if(!done_init) {

26 st_diffuse_idx = add_unistate("st_mtl_diffuse", ST_FLOAT3);

27 st_specular_idx = add_unistate("st_mtl_specular", ST_FLOAT3);

28 st_shininess_idx = add_unistate("st_mtl_shininess", ST_FLOAT);

29 st_alpha_idx = add_unistate("st_mtl_alpha", ST_FLOAT);

30 st_tex_diffuse_idx = add_unistate("st_tex_diffuse", ST_INT);

31 st_tex_specular_idx = add_unistate("st_tex_specular", ST_INT);

32 st_tex_normal_idx = add_unistate("st_tex_normal", ST_INT);

33

34 for(int i=0; i<MAX_MTL_TEXTURES; i++) {

35 char name[32];

36 sprintf(name, "st_tex%d", i);

37 st_tex_idx[i] = add_unistate(name, ST_INT);

38 }

39 done_init = true;

40 }

41

42 set_unistate(st_diffuse_idx, diffuse);

43 set_unistate(st_specular_idx, specular);

44 set_unistate(st_shininess_idx, shininess);

45 set_unistate(st_alpha_idx, alpha);

46

47 if(!use_textures) {

48 return; // we're done

49 }

50

51 const int tex_named_idx[] = {

52 st_tex_diffuse_idx, st_tex_specular_idx, st_tex_normal_idx, -1

53 };

54

55 int tex_unit = 0;

56 for(int i=0; i<MAX_MTL_TEXTURES; i++) {

57 if(tex[i]) {

58 tex[i]->bind(tex_unit);

59

60 if(tex_named_idx[i]) {

61 set_unistate(tex_named_idx[i], tex_unit);

62 }

63 set_unistate(st_tex_idx[i], tex_unit);

64 tex_unit++;

65 }

66 }

67 }