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nuclear@54
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1 #include <string.h>
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nuclear@54
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2 #include <assert.h>
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nuclear@54
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3 #include "rt.h"
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4 #include "ogl.h"
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5
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6 #define MIN(a, b) ((a) < (b) ? (a) : (b))
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7 static void dbg_set_gl_material(Material *mat)
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8 {
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9 static Material def_mat = {{0.7, 0.7, 0.7, 1}, {0, 0, 0, 0}, 0, 0, 0};
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10
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11 if(!mat) mat = &def_mat;
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12
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13 glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE, mat->kd);
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14 glMaterialfv(GL_FRONT_AND_BACK, GL_SPECULAR, mat->ks);
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15 glMaterialf(GL_FRONT_AND_BACK, GL_SHININESS, MIN(mat->spow, 128.0f));
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16 }
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17
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18 void dbg_render_gl(Scene *scn, bool show_tree, bool show_obj)
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19 {
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20 const RendInfo *rinf = get_render_info();
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21 const Face *faces = scn->get_face_buffer();
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22
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23 glPushAttrib(GL_ENABLE_BIT | GL_TRANSFORM_BIT | GL_LIGHTING_BIT);
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24
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25 for(int i=0; i<scn->get_num_lights(); i++) {
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26 float lpos[4];
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27
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28 memcpy(lpos, scn->lights[i].pos, sizeof lpos);
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29 lpos[3] = 1.0;
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30
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31 glLightfv(GL_LIGHT0 + i, GL_POSITION, lpos);
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32 glLightfv(GL_LIGHT0 + i, GL_DIFFUSE, scn->lights[i].color);
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33 glEnable(GL_LIGHT0 + i);
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34 }
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35
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36 glDisable(GL_TEXTURE_2D);
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37 glEnable(GL_DEPTH_TEST);
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38 glEnable(GL_LIGHTING);
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39
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40 glMatrixMode(GL_PROJECTION);
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41 glPushMatrix();
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42 glLoadIdentity();
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43 gluPerspective(45.0, (float)rinf->xsz / (float)rinf->ysz, 0.5, 1000.0);
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44
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45 if(show_obj) {
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46 Material *materials = scn->get_materials();
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47
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48 int num_faces = scn->get_num_faces();
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49 int cur_mat = -1;
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50
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51 for(int i=0; i<num_faces; i++) {
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52 if(faces[i].matid != cur_mat) {
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53 if(cur_mat != -1) {
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54 glEnd();
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55 }
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56 dbg_set_gl_material(materials ? materials + faces[i].matid : 0);
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57 cur_mat = faces[i].matid;
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58 glBegin(GL_TRIANGLES);
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59 }
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60
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61 for(int j=0; j<3; j++) {
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62 glNormal3fv(faces[i].v[j].normal);
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63 glVertex3fv(faces[i].v[j].pos);
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64 }
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65 }
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66 glEnd();
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67 }
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68
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69 if(show_tree) {
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70 scn->draw_kdtree();
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71 }
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72
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73 glPopMatrix();
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74 glPopAttrib();
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75
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76 assert(glGetError() == GL_NO_ERROR);
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77 }
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