zoltron_rulez Posted April 24, 2015 Report Share Posted April 24, 2015 (edited) All, Correct me if I am wrong: I know SLI does nothing for X-Plane and as Austin pointed it out, it can make it worse but ...What if you have 2 video cards in your system (and you are NOT running SLI)? If I go back to my writing video games in OpenGL and DirectX days, the common thing to do was to create a single Direct 3d device and run game loop on it. This means, that if I want to run X-Plane on 2 video cards w/out SLI I need to run 2 -instances of X-Plane <- and that would not work since both would run separately of each other). If that's the case, there's no point of doing this.Therefore, in a nutshell, X-Plane runs on a single video card (for its rendering, I don't care about the instruments). Any comments are welcome to add to this discussion ... Not to far related, it would be great if X-Plane would support multiple rendering devices in some sort of fashion. Have a look at this OpenGL rendering of multi-million simulator by CAE: https://www.youtube.com/watch?v=2sLNApTc38w lk Edited April 24, 2015 by zoltron_rulez Quote Link to comment Share on other sites More sharing options...
Ben Russell Posted April 24, 2015 Report Share Posted April 24, 2015 (edited) 1. It was Ben Supnik, not Austin, that wrote about SLI. 2. Your post is a mess of punctuation and side tracked conversation. 3. When running multiple copies of X-Plane system bus bandwidth becomes a problem. You may have 10 graphics cards but you only have 1 way to get all the data to them. Edited April 24, 2015 by Ben Russell Quote Link to comment Share on other sites More sharing options...
zoltron_rulez Posted April 24, 2015 Author Report Share Posted April 24, 2015 (edited) 1) True. I got the names mixed up2) LOL, true, had a long week of coding at work trying to keep up w/ dead lines,- doesn't help that I wrote this later towards the evening just before bed. I should of organized it into a few concise questions w/ out side tracking,- and then wait for the response and filter out the answers that I already know.3) That makes sense but it depends what you mean by it, can you elaborate?My understanding is when you launch a single copy of X-Plane, the rendering output (the scenery geometry and game physics, ie. the game loop) only supports a single video card.How can you feed data (I guess I have no idea what you mean by data???? This could mean anything such as data coming in through plugin, etc, etc.) to 10 different cards (independent card setup, non-SLI/cross fire) if X-Plane only renders to a single logical direct 3d device? I am puzzled what you mean? Just to point out: I know that there's a difference between a single PC setup w/ multiple cards and a multi-card rendering system setup that commercial applications such as a commercial flight sim would use. I just care about the former, and don't care about the latter . Edited April 24, 2015 by zoltron_rulez Quote Link to comment Share on other sites More sharing options...
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