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1 #include "material.h"
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2 #include "unistate.h"
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3
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4 using namespace goatgfx;
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5
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6 Material::Material()
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7 : diffuse(1, 1, 1), specular(0, 0, 0)
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8 {
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9 alpha = 1.0;
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10 shininess = 1.0;
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11
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12 for(int i=0; i<MAX_MTL_TEXTURES; i++) {
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13 tex[i] = 0;
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14 }
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15 }
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16
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17
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18 void Material::setup(bool use_textures) const
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19 {
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20 static bool done_init;
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21 static int st_diffuse_idx, st_specular_idx, st_shininess_idx, st_alpha_idx;
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22 static int st_tex_diffuse_idx, st_tex_specular_idx, st_tex_normal_idx;
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23 static int st_tex_idx[MAX_MTL_TEXTURES];
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24
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25 if(!done_init) {
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26 st_diffuse_idx = add_unistate("st_mtl_diffuse", ST_FLOAT3);
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27 st_specular_idx = add_unistate("st_mtl_specular", ST_FLOAT3);
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28 st_shininess_idx = add_unistate("st_mtl_shininess", ST_FLOAT);
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29 st_alpha_idx = add_unistate("st_mtl_alpha", ST_FLOAT);
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30 st_tex_diffuse_idx = add_unistate("st_tex_diffuse", ST_INT);
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31 st_tex_specular_idx = add_unistate("st_tex_specular", ST_INT);
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32 st_tex_normal_idx = add_unistate("st_tex_normal", ST_INT);
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33
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34 for(int i=0; i<MAX_MTL_TEXTURES; i++) {
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35 char name[32];
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36 sprintf(name, "st_tex%d", i);
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37 st_tex_idx[i] = add_unistate(name, ST_INT);
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38 }
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39 done_init = true;
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40 }
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41
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42 set_unistate(st_diffuse_idx, diffuse);
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43 set_unistate(st_specular_idx, specular);
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44 set_unistate(st_shininess_idx, shininess);
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45 set_unistate(st_alpha_idx, alpha);
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46
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47 if(!use_textures) {
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48 return; // we're done
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49 }
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50
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51 const int tex_named_idx[] = {
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52 st_tex_diffuse_idx, st_tex_specular_idx, st_tex_normal_idx, -1
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53 };
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54
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55 int tex_unit = 0;
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56 for(int i=0; i<MAX_MTL_TEXTURES; i++) {
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57 if(tex[i]) {
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58 tex[i]->bind(tex_unit);
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59
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60 if(tex_named_idx[i]) {
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61 set_unistate(tex_named_idx[i], tex_unit);
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62 }
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63 set_unistate(st_tex_idx[i], tex_unit);
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64 tex_unit++;
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65 }
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66 }
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67 }
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