Images in ScrollView flickering during movement in fullscreen win32

@Qtro wrote:

Hi devs,
I'm having a bit of a deal breaker problem with cocos2dx regarding visual performances.

I'm developing in C++ for win32 using fullscreen mode.
I have a ScrollView with a consistent amount of images inside it (20 or so), and when I scroll the images have a really annoying flikering problem.

I have made a simple code that I have tested and it reproduces the bug consistently, mine is much more articulated, but the general idea is this:

m_scrollView = ui::ScrollView::create();
m_scrollView->setContentSize(Size(visibleSize.width, visibleSize.height*0.8));
m_scrollView->setAnchorPoint(Vec2(0.5, 0.5));
m_scrollView->setDirection(ScrollView::Direction::HORIZONTAL);
m_scrollView->setPosition(Vec2(visibleSize.width*0.5, visibleSize.height*0.5));
this->addChild(m_scrollView, 0);

m_mainLayout = Layout::create();
m_scrollView->addChild(m_mainLayout);

Size scrollViewContentSize = m_scrollView->getContentSize();

m_subLayout = Layout::create();
m_mainLayout->addChild(m_subLayout, 0);

float imgWidth;

for (int i = 0; i < 30; i++)
{
	ImageView* img = ImageView::create("HelloWorld.png");

	if (i == 0)
	{
		imgWidth = img->getContentSize().width;
	}

	img->setPositionX(imgWidth * i);
	m_subLayout->addChild(img, 0);
	m_topImages.push_back(img);
}

float totalWidth = imgWidth * (m_topImages.size() - 1);

m_subLayout->setPositionX(-totalWidth*0.5);

m_scrollView->setInnerContainerSize(Size(totalWidth + imgWidth, visibleSize.height*0.8));
m_mainLayout->setPosition(Vec2(m_scrollView->getInnerContainerSize().width*0.5, m_scrollView->getInnerContainerSize().height*0.5));
m_scrollView->scrollToPercentHorizontal(50.0,0,false);

Keep in mind that the problem appears only in fullscreen mode.

Searching around the forum I've found out about flickering problems being solved specifing the layer when adding children (parent->addChild(child, int)) or disabling depthTest (setDepthTest(false) in AppDelegate) but doing that doesn't solve.

Please help, this is really unbearable!!

Posts: 2

Participants: 2

Read full topic