We are rapidly approaching the conclusion of this project.  This may even turn out to be the last post, if community feedback is mostly positive.  So let’s get into it.

The Atlas of Mystara World Model

Mystara 2016 Diagram 1

Mystara 2016 Diagram 1

Diagram 1 shows the world model, as determined by the world dimensions we came to previously.  All of the diagrams and images in this post are derived from Placement 5, which seemed to be the most popular of the placements I proposed.  (There was also support for placement 4, with its tunnel-shaped polar openings, but if we can preserve the polar openings in their original shape, that would be preferable.)

I have split the world into four parts, as illustrated on the right of this diagram: the Hollow World, the Outer World and the two Polar Lips.  The north-south measurements of each of these are also given; these are essential for fitting the world maps to the 3D model correctly.

The next three diagrams show the model itself, which is very simply a 3D extrusion of the shape in diagram 1.

Mystara 2016 Diagram 2

Mystara 2016 Diagram 2

Mystara 2016 Diagram 3

Mystara 2016 Diagram 3

Mystara 2016 Diagram 4

Mystara 2016 Diagram 4

I made the rendered diagrams blue to differentiate from the 2012 versions of these same diagrams.

Finally, here’s the sunlight diagram:

Mystara 2016 Diagram 5

Mystara 2016 Diagram 5

The areas of black marked in the northern polar opening show the extent of the Darklands — where neither sun shines.  An area the same size exists in the southern polar opening.  There’s also an area which experiences both day and night in summer, marked in grey, but most of the land at the poles gets constant day in midsummer and constant day in midwinter.

With that out of the way, it’s time to explore the model.

Atlas of Mystara 3D Model


This is it: hopefully the final model and placement.  I put some clouds on this one for fun, but the rest of the mock-ups are cloud free for better clarity.

From straight on, Mystara looks like a ball with its top and bottom cut off:


The latitudes seem to be working rather well, don’t you think?

Here’s a better view of the Arm of the Immortals and the Savage Coast area:




And Davania:


When it’s on the model, Davania is far more visibly South America and Africa with Antarctica and Australia added on.  It’s very clear to see in this image.

Next, let’s take a look at the polar openings.  The north pole:


Frosthaven sits just south of absolute north.  The composition of the polar opening seems close to the official maps.  Note that Nentsun is actually quite small — it’s only marginally larger than Frosthaven in size.

Next, the south pole:


Just the very southern tip of the continent falls into the opening, but it goes about halfway in.  As expected, southern Davania is far smaller than it looks on the world maps, due to the pinching effect of the poles, which is lessened on Mystara thanks to the polar openings, but it still significant.

Now let’s delve into the Hollow World.  In these shots, you can see the polar openings as well as the Hollow World itself.



The extent of the expanded Grey Sea and Sea of Keleb is apparent in this last one.

Let’s take a closer look.


The fuzziness is because I haven’t rendered these shots, as it takes close to two hours to do so.  That can wait for the finished Atlas versions of these maps, hopefully in a few years’ time.


It’s perhaps a little hard to make out how the curvature works here, so let’s try some perspective shots.



The placement of the Hollow World’s landmasses seems pretty good.


I’m quite happy with this model.  What do you think?

If you have any feedback, please don’t hold back.  Now is the time to iron out any issues.

If nothing major comes up, I will declare the project closed, and all my maps from that point on will use this as the model.  Of course there’s a huge amount of work needed to turn these collages back into usable maps, but that is for the next project.