Function DrawPolygonModel

model/polymodel.cpp:2822–2894

This is the static light version

// This is the static light version
void DrawPolygonModel(vector *pos, matrix *orient, int model_num, float *normalized_time, int flags, float r, float g,
                      float b, uint32_t f_render_sub, uint8_t use_effect, uint8_t overlay) {
  poly_model *po;

  ASSERT(Poly_models[model_num].used);
  ASSERT(!(Poly_models[model_num].flags & PMF_NOT_RESIDENT));

  GetPolymodelPointer(model_num);

  Polymodel_use_effect = use_effect;
  Polymodel_light_type = POLYMODEL_LIGHTING_STATIC;
  Polylighting_static_red = r;
  Polylighting_static_green = g;
  Polylighting_static_blue = b;

  rend_SetOverlayType(OT_NONE);
  rend_SetLighting(LS_NONE);

  po = &Poly_models[model_num];

  g3_StartInstanceMatrix(pos, orient);

  if (Polymodel_use_effect && Polymodel_effect.type & PEF_FOGGED_MODEL) {
    Polymodel_fog_plane = Polymodel_effect.fog_plane;
    Polymodel_fog_portal_vert = Polymodel_effect.fog_portal_vert;
  }

  if (Polymodel_use_effect && Polymodel_effect.type & (PEF_SPECULAR_MODEL | PEF_SPECULAR_FACES))
    Polymodel_specular_pos = Polymodel_effect.spec_light_pos;

  if (Polymodel_use_effect && (Polymodel_effect.type & PEF_BUMPMAPPED))
    Polymodel_bump_pos = Polymodel_effect.bump_light_pos;

  StartLightInstance(pos, orient);

  SetModelAnglesAndPos(po, normalized_time, f_render_sub);

  if (f_render_sub == 0xFFFFFFFF || overlay) // draw entire object
  {
    if (po->new_style) {
      RenderPolygonModel(po, f_render_sub);
    }
  } else {
    ASSERT(po->new_style == 1);

    rend_SetAlphaType(ATF_CONSTANT + ATF_VERTEX);

    int i;
    for (i = 0; i < po->n_models; i++) {
      if ((f_render_sub & (1 << i))) {
        if (i != 0) {
          // if submodel, rotate around its center point, not pivot point

          vector ofs = (po->submodel[i].min + po->submodel[i].max) / 2;
          vector save_offset = po->submodel[i].offset;
          vm_MakeZero(&po->submodel[i].offset);
          vm_MakeZero(&po->submodel[i].mod_pos);
          memset(&po->submodel[i].angs, 0, sizeof(angvec));