Hi, and about the Oculus Rift part, which actually was the main part of my mail?
Regards, Jörg Am 2013-08-26 17:42, schrieb Fabien Chéreau: > Hi Jörg, > well I had a lot of conflicts with this code indeed. We should try to > re-integrate it properly on the branch, if we decide to go this way. > Fabien > > On Mon, Aug 26, 2013 at 5:33 PM, Jörg Müller <nex...@gmail.com> wrote: >> Hi Fabien, >> >> interesting news to read. Does this mean my shadow code gets removed >> too? I don't know if GLES2 supports the required float textures. >> >> Apart from that I recently tried to integrate Oculus Rift [1] support in >> stellarium. The steps needed to be done for integration are: >> >> 1. Headtracking (Moving the view based on the movement of the headset) >> 2. Rendering in two viewports each taking half of the screen space for >> the left and right eye >> 3. Calculating and adjusting the projection matrix based on aspect >> ratio,field of view and other settings of the hardware and using it in >> the rendering pipeline >> 4. Adjusting the view matrix for each eye location >> 5. Correcting the distortion of the hardware's lense using a pixel shader >> >> I succeeded in the first two steps, but as for the next two stellarium >> is a very special case I failed to properly change the projection matrix >> of the rendering pipeline. What do you think about this project and >> would you be willing to help me understand how the transformations in >> the rendering pipeline of stellarium work so that I can integrate the >> required calculations? >> >> Regards, >> Jörg >> >> [1] https://oculusvr.com/ >> >> On 2013-08-26 15:51, Fabien Chéreau wrote: >>> Hi Bogdan, >>> >>> I currently have a bit more free time, and I was actually >>> investigating doing some major refactoring of the project (not a total >>> rewrite but not very far from that :D ) >>> Basically what I want is to produce a much lighter version of >>> Stellarium based on Qt5 and OpenGL ES2 features only (it's a >>> requirement of Qt5 itself). This involves: >>> - revert all changes from GSOC 2012 on the renderer: after having a >>> detailed look I am convinced that all this work is almost useless from >>> the moment on we want to support only GLES2. It also introduced a >>> number of rendering bugs, as well as a large performance penalty. I've >>> done most of this revert in a branch called >>> https://code.launchpad.net/~stellarium/stellarium/simplegles and went >>> from 45 FPS to 62 FPS on my computer. >>> - suppress completely GL1-related code and focus on shader-based >>> rendering only. This is also almost done in the branch. >>> - switch to the new Qt rendering system, i.e. abandon rendering based >>> on QGraphicsView / QWidgets and use only classes from the new QtGUI >>> module (the one from Qt5). I am not completely sure but this may >>> involve a complete GUI re-write based on QML. This last task may sound >>> quite ambitious. I'm quite confident that we can reproduce a GUI >>> similar to the current one based on QML, but it may cause some >>> troubles for interactions with plugin etc.. >>> >>> Fabien >>> >> >> ------------------------------------------------------------------------------ >> Introducing Performance Central, a new site from SourceForge and >> AppDynamics. Performance Central is your source for news, insights, >> analysis and resources for efficient Application Performance Management. >> Visit us today! >> http://pubads.g.doubleclick.net/gampad/clk?id=48897511&iu=/4140/ostg.clktrk >> _______________________________________________ >> Stellarium-pubdevel mailing list >> Stellarium-pubdevel@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/stellarium-pubdevel > ------------------------------------------------------------------------------ > Introducing Performance Central, a new site from SourceForge and > AppDynamics. Performance Central is your source for news, insights, > analysis and resources for efficient Application Performance Management. > Visit us today! > http://pubads.g.doubleclick.net/gampad/clk?id=48897511&iu=/4140/ostg.clktrk > _______________________________________________ > Stellarium-pubdevel mailing list > Stellarium-pubdevel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/stellarium-pubdevel ------------------------------------------------------------------------------ Introducing Performance Central, a new site from SourceForge and AppDynamics. Performance Central is your source for news, insights, analysis and resources for efficient Application Performance Management. Visit us today! http://pubads.g.doubleclick.net/gampad/clk?id=48897511&iu=/4140/ostg.clktrk _______________________________________________ Stellarium-pubdevel mailing list Stellarium-pubdevel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/stellarium-pubdevel
