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Can I still obtain Dryad?

Sorry, no. The Dryad project has officially ended, and the software is no longer available.

How do I use Dryad?

To get started, you can refer to the annotated screenshot here.

Dryad crashes or doesn't run on my computer.

Make sure your computer meets the minimum system requirements. In particular, your machine must have a dedicated graphics card with at least 256 MB of video memory. If Dryad doesn't run on an appropriate system, it's likely that you need to update your graphics drivers. Drivers for the major vendors can be found at the respective websites of ATI and NVIDIA.

Dryad runs on my computer, but it doesn't look the way it should.

Dryad sometimes has trouble turning on multi-sample anti-aliasing through OpenGL. If the trees displayed in Dryad look blocky, you should enable anti-aliasing through the control panel provided by your graphics vendor. We are also aware of a small number of incompatibilities with existing systems which manifest themselves in the form of graphical corruption or even sporadic crashes. We are currently working to resolve these problems. In the worst case, we suggest you run Dryad on another system.

When will a Linux version be available?

As soon as we finish compiling it. Given how many things we have to statically link, it may be a while.

Dryad used to work, but now it doesn't.

It is likely that your trees.dat file has somehow become corrupted. You should delete this file entirely, and Dryad will download a new one the next time you run it. On Windows, trees.dat can be found in the same directory as the Dryad executable. In OS X, trees.dat is contained inside the application bundle, in Contents/MacOS/ (right click on the Dryad icon and select "Show Package Contents" to open the bundle).

Why does Dryad all of a sudden take much longer to load than it used to?

If you haven't used Dryad in a while, it's likely that many new trees have been added to our database since you last logged in. Downloading these trees can take some time.