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include performance tweak guide for Linux
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readme.md
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@ -44,6 +44,45 @@ Also there is always a bug thread in the [Official XMage forum](http://www.sligh
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Look [here](http://www.slightlymagic.net/forum/viewtopic.php?f=70&t=13632) for more detailed instructions.
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Look [here](http://www.slightlymagic.net/forum/viewtopic.php?f=70&t=13632) for more detailed instructions.
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[Here](http://github.com/magefree/mage/wiki/Release-changes) you can find a log of the latest changes.
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[Here](http://github.com/magefree/mage/wiki/Release-changes) you can find a log of the latest changes.
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## Performance tweaks
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If you have a good GPU, it's very likely you'll be able increase performance by **a lot** through extra Java flags.
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XMage runs on JRE 8, so [this link](https://docs.oracle.com/javase/8/docs/technotes/guides/2d/flags.html) should give you the available flags.
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### How to enable the extra flags
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1. Launch XMage
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2. In the menu bar from the launcher, click on "Settings", which will open up the Settings Window
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3. Go to the "Java" tab
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4. You can pass extra flags by editing the "Client java options" text field
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### Linux guide
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#### Enable OpenGL
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[Link](https://docs.oracle.com/javase/8/docs/technotes/guides/2d/flags.html#opengl)
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`-Dsun.java2d.opengl=true`
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_**Caveat**_: [There's a bug](https://bugs.openjdk.java.net/browse/JDK-6545140) with the file chooser when OpenGL is enabled (you use the file chooser when you, for instance, try to load a deck from disk). The [suggested workaround](https://bugs.java.com/bugdatabase/view_bug.do?bug_id=6439320) will make the game crash, so it's not an option.
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_**Workaround**_: When using [i3](https://github.com/i3/i3), you're able to work around the bug by toggling the "floating" capabilities of the window and forcing it to re-render.
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#### Enable XRender
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[Link](https://docs.oracle.com/javase/8/docs/technotes/guides/2d/flags.html#xrender)
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`-Dsun.java2d.xrender=true`
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#### Bigger upfront heap size
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[SO explanation](https://stackoverflow.com/a/57839720/8401696)
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This is not guaranteed to yield improvements, but it depends on your use-case. If you have a lot of RAM to spare, you might as well increase the initial heap size for good measure.
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`-Xms1G -Xmx2G`
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## Developer
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## Developer
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If you are interested in developing XMage, here are some useful resources:
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If you are interested in developing XMage, here are some useful resources:
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