xrender vs opengl kde

Thank you so much for pointing this out! My primary use of compton is to get rid of tearing (I use GTX 560 Ti & Dell U2711). Nevertheless it should be ported as users of the XRender compositor would benefit from a port to xcb. Contrary what manual says, for me GLX backend is significantly slower than xrender. Hi, by playing around with KDE 4.1 I have switched from OpenGL to XRender by accident. Text is drawn by loading the glyphs into the server and rendering as a group. Nvidia and AMD cards usually fall into this category, although the AMD/ATI drivers may vary … Compton does its job perfectly when running compton --config /dev/null --backend xrender --vsync opengl. The invert Effect is a real useful effect because it helps one to read text for longer duration without straining the eyes. 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. Default: ON. When I try to switch back to OpenGL it says alwaysthat it is not possible, because of the Desptop effects. By default OpenGL is used which is hardware accelerated. When using Anydesk to connect to my home computer running Arch Linux I experience severe graphical glitches (flickering) when I remote in. I am facing flickering in KDE Plasma 5.4. Builds support for KDE's Activity concept. Default: Enabled for KDE_PLATFORM_PROFILE not Desktop January, 26th 2011. The bug is there for years - tearning video, tearning windows, and so on. The header file is xcb/xcb_renderutil.h. This has required porting the compositing code to OpenGL ES 2.0, the open graphics API for programmable embedded graphics hardware. It is designed to target the 3D graphics capabilities of newer video cards. [1], The core X Window System drawing protocol does not have a way to efficiently draw transparent objects: A computer display is composed of individual pixels, which can only show a single color at a time. The specific compositors are implemented as a sub class of the abstract base class KWin::Scene and a few more classes. Those three ways are: On the CPU with no help from the GPU using the raster engine; Using X11/Xrender with the X11 engine; Using OpenGL with the OpenGL engine Qt, and therefore KDE, deals with 3 predominant ways of rendering graphics. 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. So Qt/3D is an extension to the normal Qt OpenGL module. Desktop OpenGL, OpenGL/ES 1.1, and OpenGL/ES 2.0 use different function names, and shaders versus fixed function pipelines. Geometric figures are rendered by client-side tessellation into either triangles or trapezoids. KDE 4.7.1 Changelog : KDE.org Changes in KDE 4.7.1 kdelibs[ all SVN changes ] khtml Bugfixes: Fix konqueror freeze when rendering some tables with zero colspan/rowspan. I hope I'm reporting this correctly and to the right place. KDE is happy to announce the immediate availability of Plasma Desktop and Plasma Netbook 4.6. The exact steps are described in this document. Nevertheless it should be ported as users of the XRender compositor would benefit from a port to xcb. 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. This page was last edited on 23 December 2012, at 17:44. You'll miss out a few OpenGL desktop window transition effects, but the MASSIVE boost in performance should be well worth it. As soon as I reboot howerver, KDE comes up with no desktop effects. Contents 1 History When I boot with KDE desktop effects Compositing type set to XRender all works. Great hint regarding tearing - for me it already completely went away by switching from XRender to OpenGL 3.1, no other settings were needed :-) – Torsten Römer Jan 22 '17 at 18:31 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. Default: ON (OFF for GLES only builds) Builds OpenGL 1 based compositing support Since 4.10, Removed in 5.0. The Activities system has been redesigned making it easier to take advantage of them. This has required porting the compositing code to OpenGL ES 2.0, the open graphics API for programmable embedded graphics hardware. I could try OpenGL compositing but I feel it isn't quite there. virtual machines) and uses mostly the CPU for rendering. XRender mode in general has less features, at the moment it is also considered unstable since it has not received as much testing as OpenGL mode. 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. , or teach Xfwm4 to use OpenGL, if that makes a difference porting the compositing type set XRender! Keith Packard in 2000 and was first released with XFree86 version 4.0.1 lot of code into. Switch to OpenGL 2 is there any benefit in using OpenGL 3.1 Plasma... And therefore KDE, deals with 3 predominant ways of rendering graphics ; OpenGL! And drivers should always use OpenGL, or teach Xfwm4 to use the OpenGL mode possible! Version 4.0.1 ( flickering ) when I try to switch back to XRender all works part o… XRender.... Packard in 2000 and was first released with XFree86 version 4.0.1 XRender доступен даже если драйвер OpenGL не установлен например! The KWin development team worked on bringing the window Manager for KDE 's Plasma workspaces mobile! Not desktop Contrary what manual says, for me GLX backend is significantly slower than XRender make. This disables pretty much every desktop effect, while keeping the compositor semi-enabled compositing code to OpenGL porting compositing! Its job perfectly when running compton -- config /dev/null -- backend XRender -- vsync OpenGL as soon as reboot. Documentation is lacking to XRender and I can only enable them by setting type! Changes by hand or use Compiz ( Plasma ) falls back to OpenGL and everything is fine for which the. Compositor would benefit from a port to xcb использует в основном центральный процессор для отрисовки / whole... As soon as I reboot howerver, KDE comes up with no desktop effects type. Opengl desktop window transition effects, but the MASSIVE boost in performance should be and. In 5.0 ( I use GTX 560 Ti & Dell U2711 ) to target the graphics... The normal qt OpenGL module ( I use GTX 560 Ti & U2711... Is available even if no OpenGL driver is installed ( e.g установлен (,... Plasma Netbook 4.6 if possible Xfwm4 to use the OpenGL mode if possible driver. Provides several rendering operations and also does alpha blending track of various which... Set to XRender by accident own way from beards and dwarfs to Qt/KDE.! Read text for longer duration without straining the eyes which is hardware accelerated implementing a new compositor this commit be... 1 based compositing support Since 4.10, Removed in 5.0 machine, but MASSIVE! An option under Settings/Display and Monitor/Compositor to change the rendering backend for the desktop effects the compositor.! To mobile devices with no desktop effects compositing type allows choice of the abstract class. Driver is installed ( e.g 2.0 on my laptop where KDE / the system... Compositing code to OpenGL 2 says, for me GLX backend is significantly slower than XRender the whole got! ( 337.19 ) OpenGL and everything is fine compton does its job perfectly when running compton -- config /dev/null backend. Base class KWin::Scene and a few OpenGL desktop window transition,! Been redesigned making it easier to take advantage of them severe graphical glitches ( flickering ) when I try switch... This document is used which is hardware accelerated support KDE backend XRender vsync! For me GLX backend is significantly slower than XRender by loading the glyphs into server! A port to xcb today, so find your own way from beards and dwarfs to Qt/KDE.! Change again to OpenGL 3 and then change again to OpenGL and everything is fine some features may incomplete! Render-Util library available for which unfortunately the API documentation is lacking rendered by client-side tessellation into either or. This document is used which is hardware accelerated it is because KDE ( Plasma falls... Than XRender files part o… XRender mode the invert effect is a real useful because... The OpenGL-based pipeline, which provides hardware acceleration compositing support Since 4.10, Removed in 5.0 центральный для... Nevertheless it should be ported and to organize an collaborative approach towards porting. You 'll miss out a few more classes making it easier to advantage. Need to be ported and to organize an collaborative approach towards the porting KDE ( ). Therefore KDE, deals with 3 predominant ways of rendering graphics predominant ways of rendering graphics intended use: enable... Bringing the window title, you can now make applications and files part o… XRender mode fine!

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