These were made by using World Machine – where I layered and blended different noises and fractal functions to create them. Once a single function was created 3 different randomized outputs were made.
Once I had enough height maps I decided to go into Zbrush where I hand placed them over a subdivided plane as alphas – this gave me great speed, variation and flexibility when making the terrain
Next the scene was moved to Keyshot where the assets were rendered in various materials.
I them placed the camera in the center and proceeded to render the scene from different angles – Keyshot does not support panoramic renders so the process was quite painful…
Finally it was time to piece together the scene in Photoshop – to do this I created 3D spherical panorama where I could directly paint inside the sphere and edit the unwrapped texture directly.
Here is the final panoramic texture – in the end I used some photograph to add some texture variations to the soil and mountains as well as details like the fumes and sea ice.
The final result can be viewed here – in the final project Marmoset Toolbag was used to add effects like lens flare, bloom and color correction to the scene (these are not however visible in the Marmoset Viewer link)