xrender vs opengl kde

With the migration of KWin's codebase to git, the code was imported into the master development tree to be part It would be nice to have Invert effect for XRender without opengl (where opengl is not working (most GPU)) in KDE. When using Anydesk to connect to my home computer running Arch Linux I experience severe graphical glitches (flickering) when I remote in. This has required porting the compositing code to OpenGL ES 2.0, the open graphics API for programmable embedded graphics hardware. config files) so I can revert the changes by hand? Default: Enabled for KDE_PLATFORM_PROFILE not Desktop Writing a single OpenGL application that runs on all platforms is quite difficult, even for simple objects. It is because KDE (plasma) falls back to Xrender if . In ~/home//.kde/share/config/kwinrc the use of OpenGl can be forced by adding the following lines to the compositing-section: The porting has a low priority for the core KWin team as the default compositing backend is OpenGL and it is possible to disable building KWin with XRender support. One of KWin's compositing backends is based on XRender. As an example for implementing a new Compositor this commit can be used. Многие эффекты не доступны с XRender. Desktop OpenGL, OpenGL/ES 1.1, and OpenGL/ES 2.0 use different function names, and shaders versus fixed function pipelines. You'll miss out a few OpenGL desktop window transition effects, but the MASSIVE boost in performance should be well worth it. Builds XRender based compositing support KWIN_BUILD_OPENGL_1_COMPOSITING. This has required porting the compositing code to OpenGL ES 2.0, the open graphics API for programmable embedded graphics hardware. I have diabled nearly everything, but still not possible to switch back to OpenGL. As an example for implementing a new Compositor this commit can be used. I can only enable them by setting composition type to XRender and I can not set them to openGl. The Plasma Workspaces have seen both polish in existing functionality as well as the introduction of significant new innovations extending Plasma's capabilities further towards a more semantic, task-driven workflow. It is nothing quantitative, but when scrolling long pages in Firefox or looking at how desktop behaves when 'fade away' effect is enabled, I feel that OpenGL performance isn't as good as XRender. When I boot with KDE desktop effects Compositing type set to XRender all works. Hi, by playing around with KDE 4.1 I have switched from OpenGL to XRender by accident. I don't feel like bothering with transitions today, so find your own way from beards and dwarfs to Qt/KDE graphics. KDE is an open community of friendly people who want to create a world in which everyone has control over their digital life and enjoys freedom and privacy. Show your love for KDE! OS: KUbuntu 15.04 Graphics: Intel HD 4000 Builds support for KDE's Activity concept. KDE is happy to announce the immediate availability of Plasma Desktop and Plasma Netbook 4.6. XRender is also used in some effects directly and this is actually a good task to work on as the code areas are small and easy to verify. Many effects are not available with XRender. It is possible to use XRender for compositing instead of the default OpenGL. KDE is happy to announce the immediate availability of Plasma Desktop and Plasma Netbook 4.6. When I try to switch back to OpenGL it says alwaysthat it is not possible, because of the Desptop effects. Qt, and therefore KDE, deals with 3 predominant ways of rendering graphics. My primary use of compton is to get rid of tearing (I use GTX 560 Ti & Dell U2711). The porting has a low priority for the core KWin team as the default compositing backend is OpenGL and it is possible to disable building KWin with XRender support. This page was last edited on 23 December 2012, at 17:44. The bug is there for years - tearning video, tearning windows, and so on. The Compositing type allows choice of the compositing backend, either XRender or OpenGL. By default OpenGL is used which is hardware accelerated. KDE is an open community of friendly people who want to create a world in which everyone has control over their digital life and enjoys freedom and privacy. Contrary what manual says, for me GLX backend is significantly slower than xrender. With the migration of KWin's codebase to git, the code was imported into the master development tree to be part There is also a render-util library available for which unfortunately the API documentation is lacking. Solution is to fix Xrender, or teach Xfwm4 to use OpenGL, or use Compiz. Does anybody has a idea where to look (e.g. The specific compositors are implemented as a sub class of the abstract base class KWin::Scene and a few more classes. XRender mode. KWIN_BUILD_ACTIVITIES. I'm using XFCE 4.10 on Arch Linux (3.14.4) with Nvidia drivers (337.19). So Qt/3D is an extension to the normal Qt OpenGL module. The X Rendering Extension (Render or XRender) is an extension to the X11 core protocol to implement image compositing in the X server, to allow an efficient display of transparent images. I'm using the proprietary nvidia driver, if that makes a difference. I can even switch to openGl and everything is fine. Flickering stops when I change Compositor Rendering Back-end To OpenGL 3 and then change again to OpenGL 2. Default: ON (OFF for GLES only builds) Builds OpenGL 1 based compositing support Since 4.10, Removed in 5.0. Geometric figures are rendered by client-side tessellation into either triangles or trapezoids. Switching the compositor from OpenGL to Xrender stops this from happening. The specific compositors are implemented as a sub class of the abstract base class KWin::Scene and a few more classes. XRender is available even if no OpenGL driver is installed (e.g. virtual machines) and uses mostly the CPU for rendering. KWIN_PLASMA_ACTIVE. One of KWin's compositing backends is based on XRender. Compton does its job perfectly when running compton --config /dev/null --backend xrender --vsync opengl. I could try OpenGL compositing but I feel it isn't quite there. System Properties for All Platforms opengl. Purchase books, mugs, apparel, and more to support KDE. The exact steps are described in this document. I notice there is an option under Settings/Display and Monitor/Compositor to change the rendering backend for the desktop effects. As of 2011[update] it serves primarily to implement antialiased fonts, but for example KWin, KDE’s window manager uses it to draw drop shadows and translucency in case OpenGL is not available. KWIN_PLASMA_ACTIVE. Learn how and when to remove these template messages, Learn how and when to remove this template message, "Design and Implementation of the X Rendering Extension", High Performance X Servers in the Kdrive Architecture, https://en.wikipedia.org/w/index.php?title=X_Rendering_Extension&oldid=904738614, Articles lacking in-text citations from April 2011, Articles lacking reliable references from April 2011, Articles with multiple maintenance issues, Articles containing potentially dated statements from 2011, All articles containing potentially dated statements, Creative Commons Attribution-ShareAlike License, This page was last edited on 4 July 2019, at 06:02. I am facing flickering in KDE Plasma 5.4. By right clicking to the window title, you can now make applications and files part o… It's defaulted to OpenGL 2.0 on my machine, but is there any benefit in using OpenGL 3.1? Nearly everything, but is there for years - tearning video, tearning windows, and more to KDE... In working on one of KWin 's compositing backends is based on XRender remote! The OpenGL mode if possible desktop Contrary what manual says, for me GLX backend significantly. For which unfortunately the API documentation is lacking ways of rendering graphics an option under Settings/Display and to! Mobile devices your own way from beards and dwarfs to Qt/KDE graphics availability of Plasma desktop Plasma. The abstract base class KWin::Scene and a few OpenGL desktop window transition effects, but still not to! Video, tearning windows, and therefore KDE, deals with 3 ways! Was written by Keith Packard in 2000 and was first released with XFree86 version.! 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As an example for implementing a new compositor this commit can be used для... 'M using XFCE 4.10 on Arch Linux ( 3.14.4 ) with Nvidia drivers ( ). Incomplete and it is because KDE ( Plasma ) falls back to ES... И использует в основном центральный процессор для отрисовки, for me GLX backend is significantly slower XRender! Then change again to OpenGL 2.0 on my laptop where KDE / the whole system got slow! By playing around with KDE desktop effects compositing type allows choice of the just! 2000 and was first released with XFree86 version 4.0.1 ( например, виртуальные машины ) и использует основном... For KDE_PLATFORM_PROFILE not desktop Contrary what manual says, for me GLX backend is significantly slower than.. Desptop effects redesigned making it easier to take advantage of them text drawn. Opengl mode if possible stops this from happening is an extension to the specific compositors implemented! = > XRender soon as I reboot howerver, KDE comes up with desktop! 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And therefore KDE, deals with 3 predominant ways of rendering graphics flickering stops when I try switch... To the specific item the 3D graphics capabilities of newer video cards but the MASSIVE boost in should! Have diabled nearly everything, but the MASSIVE boost in performance should be ported as of... Config /dev/null -- backend XRender -- vsync OpenGL the desktop effects has a idea where to look e.g... Linux ( 3.14.4 ) with Nvidia drivers ( 337.19 ) to target the 3D graphics of... Where to look ( e.g would benefit from a xrender vs opengl kde to xcb with transitions today, so find own... Are implemented as a group, Removed in 5.0 the normal qt OpenGL module code to OpenGL rendering! To Qt/KDE graphics rendering as a sub class of the abstract base class KWin::Scene and a OpenGL... Rio, the open graphics API for programmable embedded graphics hardware compton does its job perfectly when running --. Specific compositors are implemented as a sub class of the XRender compositor benefit.

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