Method drawScene

core/base/Director.cpp:276–363

Draw the Scene

// Draw the Scene
void Director::drawScene()
{
    _renderer->beginFrame();

    // calculate "global" dt
    calculateDeltaTime();

    if (_renderView)
    {
        _renderView->pollEvents();
    }

    // tick before glClear: issue #533
    if (!_paused)
    {
        _eventDispatcher->dispatchEvent(_eventBeforeUpdate);
        _scheduler->update(_deltaTime);
        _eventDispatcher->dispatchEvent(_eventAfterUpdate);
    }

    _renderer->clear(ClearFlag::ALL, _clearColor, 1, 0, -10000.0);

    _eventDispatcher->dispatchEvent(_eventBeforeDraw);

    /* to avoid flickr, nextScene MUST be here: after tick and before draw.
     * FIXME: Which bug is this one. It seems that it can't be reproduced with v0.9
     */
    if (_nextScene)
    {
        setNextScene();
    }

    pushMatrix(MATRIX_STACK_TYPE::MATRIX_STACK_MODELVIEW);

    if (_runningScene)
    {
#if (defined(AX_ENABLE_PHYSICS) || defined(AX_ENABLE_3D_PHYSICS) || \
     defined(AX_ENABLE_NAVMESH))
        _runningScene->stepPhysicsAndNavigation(_deltaTime);
#endif
        // clear draw stats
        _renderer->clearDrawStats();

        // render the scene
        if (_renderView)
            _renderView->renderScene(_runningScene, _renderer);

        _eventDispatcher->dispatchEvent(_eventAfterVisit);
    }

    // draw the notifications node
    if (_notificationNode)
    {
        _notificationNode->visit(_renderer, Mat4::IDENTITY, 0);
    }

    updateFrameRate();