1 #include "material.h"

2 #include "unistate.h"

3

4 Material::Material()

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

6 {

7 alpha = 1.0;

8 shininess = 1.0;

9

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

11 tex[i] = 0;

12 }

13 }

14

15

16 void Material::setup(bool use_textures) const

17 {

18 static bool done_init;

19 static int st_diffuse_idx, st_specular_idx, st_shininess_idx, st_alpha_idx;

20 static int st_tex_diffuse_idx, st_tex_specular_idx, st_tex_normal_idx;

21 static int st_tex_idx[MAX_MTL_TEXTURES];

22

23 if(!done_init) {

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

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

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

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

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

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

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

31

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

33 char name[32];

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

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

36 }

37 done_init = true;

38 }

39

40 set_unistate(st_diffuse_idx, diffuse);

41 set_unistate(st_specular_idx, specular);

42 set_unistate(st_shininess_idx, shininess);

43 set_unistate(st_alpha_idx, alpha);

44

45 if(!use_textures) {

46 return; // we're done

47 }

48

49 const int tex_named_idx[] = {

50 st_tex_diffuse_idx, st_tex_specular_idx, st_tex_normal_idx, -1

51 };

52

53 int tex_unit = 0;

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

55 if(tex[i]) {

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

57

58 if(tex_named_idx[i]) {

59 set_unistate(tex_named_idx[i], tex_unit);

60 }

61 set_unistate(st_tex_idx[i], tex_unit);

62 tex_unit++;

63 }

64 }

65 }