Function GameRenderFrame

Descent3/GameLoop.cpp:2570–2685

Draw a frame of the game

// Draw a frame of the game
void GameRenderFrame(void) {
  bool no_render = false;
  AI_NumRendered = 0;
  AI_NumHostileAlert = 0;

  if (Dedicated_server)
    return;

#ifndef RELEASE
  Mine_depth = 0;
#endif

  // increase our timing for the powerup sparkles, used globally by all
  Last_powerup_sparkle_time += Frametime;

  PreUpdateAllLightGlows();

  // Don't render if receiving data
  if ((Game_mode & GM_MULTI) && NetPlayers[Player_num].sequence != NETSEQ_PLAYING) {
    no_render = true;
    ShowProgressScreen(TXT_RECEIVINGDATA, NULL, 0);
  }

  // Generate "shaken" view for player
  if (!Game_paused)
    ShakePlayer();

  rend_SetZBufferState(1);
  rend_SetZBufferWriteMask(1);

  // clear screen if needed
  if (Clear_screen) {
    StartFrame(0, 0, Max_window_w, Max_window_h, false);
    rend_ClearScreen(GR_BLACK);
    EndFrame();
    Clear_screen--;
  }

  // Render the mine
  if (!no_render) {
    // render preliminary hud view (for dirty rectangles)
    if (Small_hud_flag) { // small hud flag is set in RenderHUDFrame in GameDrawHud.
      StartFrame(0, 0, Max_window_w, Max_window_h, false);
      RenderPreHUDFrame();
      EndFrame();
    }

    // Draw the big 3d view
    GameDrawMainView();

    // Do the small views.  These should be before GameDrawHUD() for the small windows
    DrawSmallViews();

    // Do Cockpit/Hud
    if (!HUD_disabled)
      GameDrawHud();

    // Render Ingame Cinematics