eleni.mutantstargoat.com Git - demo/blob - src/renderer.cc

   1 #include <GL/glew.h>
   2
   3 #include "global.h"
   4
   5 #include "camera.h"
   6 #include "mesh.h"
   7 #include "object.h"
   8 #include "renderer.h"
   9 #include "scene.h"
  10 #include "shader.h"
  11 #include "shader_manager.h"
  12
  13 Renderer::Renderer()
  14 {
  15         scene = 0;
  16         camera = 0;
  17         sprog = 0;
  18 }
  19
  20 Renderer::~Renderer()
  21 {
  22 }
  23
  24 bool Renderer::create()
  25 {
  26         if(!(sprog = sdr_man->create_shader_program("default.v.glsl", "default.f.glsl"))) {
  27                 return false;
  28         }
  29
  30         return true;
  31 }
  32
  33 void Renderer::draw() const
  34 {
  35         if(!camera || !scene)
  36                 return;
  37
  38         int mview_loc;
  39         if((mview_loc = sprog->get_uniform_location("mview")) != -1) {
  40                 sprog->set_uniform_matrix(mview_loc, camera->get_view_matrix());
  41         }
  42
  43         int mproj_loc;
  44         if((mproj_loc = sprog->get_uniform_location("mproj")) != -1) {
  45                 sprog->set_uniform_matrix(mproj_loc, mprojection);
  46         }
  47
  48         glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
  49         camera->set_orbit_params(phi, theta, dist);
  50
  51         for(size_t i=0; i<scene->objects.size(); i++) {
  52                 draw_object(scene->objects[i]);
  53         }
  54 }
  55
  56 void Renderer::draw_object(Object *object) const
  57 {
  58         Material *m = object->material;
  59         /* diffuse */
  60         int diff_loc;
  61         if((diff_loc = sprog->get_uniform_location("diffuse")) != -1) {
  62                 sprog->set_uniformf(diff_loc, m->diffuse.x, m->diffuse.y, m->diffuse.z);
  63         }
  64         /* specular */
  65         int spec_loc;
  66         if((spec_loc = sprog->get_uniform_location("specular")) != -1) {
  67                 sprog->set_uniformf(spec_loc, m->specular.x, m->specular.y, m->specular.z);
  68         }
  69         /* specular exponent */
  70         int shin_loc;
  71         if((shin_loc = sprog->get_uniform_location("shininess")) != -1) {
  72                 sprog->set_uniformf(shin_loc, m->shininess);
  73         }
  74
  75         if (!sprog->link())
  76                 return;
  77
  78         sprog->use();
  79         object->mesh->draw();
  80 }