Okay, given my level of frustration over the weekend, I’m rather happy with today’s developments. I’ve managed to produce a very rough draft of my world map, using Photoshop, the GPlates software, and GProjector. By no means is this as detailed as a good map of Earth yet, but I’m reasonably satisfied with the realism of the planetary geology involved.
Here’s a flat map in equirectangular projection:
This planet is in the middle stages of the breakup of a supercontinent. An Atlantic-like ocean has opened up, breaking off the equatorial continent and sending it south and west, creating a nice long chain of island arcs along the edges of two subduction zones as well.
The big continent that covers the north polar region is actually made up of three major continental plates. The piece covering the polar region itself is one plate, then a second is in the process of breaking away and heading southward, with a rift valley and a newly opening ocean basin dividing them. The third piece, down in the southern hemisphere, is actually a separate plate that started out attached to “Equatoria” but found itself divided from it by the new mid-ocean ridge. It’s currently being driven east and north, and is probably forming a blocked-off sea basin or an impressive range of mountains (or both) along the point of contact with the larger land mass.
The blot of land in the middle of the pseudo-Atlantic is my equivalent of Atlantis (or Númenor), the home of the most advanced human culture on the planet, one which is just starting a period of sea-borne exploration. The land-form is basically a super-Iceland, an exposed piece of the mid-ocean ridge that has a magma plume under it. Lots of volcanism and hot springs, and the inhabitants are feeling crowded enough that they’re ready to sail away and find primitive lands to colonize.
For variety, here’s a two-hemisphere orthographic map, produced using GProjector:
I did mention that this is a very rough draft map, right? I think I may produce a somewhat more detailed version of this map with Photoshop first, so I can add mountains and other major land-forms, then work out ocean currents and climate zones. Then it will be time to drill down to the specific region(s) that will appear in the story, and use Photoshop or Campaign Cartographer to put together finely detailed maps for those.
How did I get through this in just a few hours, after struggling all weekend? As often happens in world-building, the secret is finding the right workflow.
For a couple of days, I was using the GPlates software to try to draw features on the sphere. Problem is, although GPlates is perfectly good for that, that’s not what the software is actually designed for: it’s a very sophisticated plate-tectonics simulator. So by using it just to sketch features, I’m ignoring 99% of the thing’s functionality – and some of that functionality very much gets in the way. I was spending most of my time juggling multiple raster files, and fighting the very elaborate system GPlates uses to save projects, and getting frustrated with the results.
So today I switched my workflow around. Rather than do any drawing in GPlates, I did all of it in a Photoshop document with three layers (one each for ocean, tectonic boundaries, and land-masses). I would draw a few features, then save the result as a PNG image and import that into GPlates, purely to see how it looked on the sphere. More often than not, I would spot absurdities on the sphere that weren’t obvious on the flat map – so I would go back to Photoshop, fiddle with a few lines, and then re-import the result back into GPlates. I never tried to save anything in GPlates, so I never had to deal with its weird file-management system. Fifteen or twenty iterations later, I finally had the planet divided into a reasonable set of major tectonic plates, I knew where the major mid-ocean ridges and subduction zones were, and I was ready to finish the sketch map here.
I’ll take my progress where I find it.
