** Description changed: The MainView renders at the bottom-most layer a background composed of a colored rectangle and an image. The way it is currently implemented implies two fullscreen passes with alpha blending on. This is very slow. A solution would be to use just one pass using a ShaderEffect or a dedicated C++ component. Disabling alpha blending (possible since it's the bottom-most layer) would also provide a good performance boost. + Another idea, if no image needs to be rendered, would be to simply set + the GPU clear color to the background color, to render it for free.
** Summary changed: - [MainView] Background color and image rendering is slow + [MainView] Background color and image rendering is too slow -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to ubuntu-ui-toolkit in Ubuntu. https://bugs.launchpad.net/bugs/1439133 Title: [MainView] Background color and image rendering is too slow Status in ubuntu-ui-toolkit package in Ubuntu: Confirmed Bug description: The MainView renders at the bottom-most layer a background composed of a colored rectangle and an image. The way it is currently implemented implies two fullscreen passes with alpha blending on. This is very slow. A solution would be to use just one pass using a ShaderEffect or a dedicated C++ component. Disabling alpha blending (possible since it's the bottom-most layer) would also provide a good performance boost. Another idea, if no image needs to be rendered, would be to simply set the GPU clear color to the background color, to render it for free. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-ui-toolkit/+bug/1439133/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
