Roads and pipes are generated with curve geometry nodes. For example, if the face normal is directly facing away from the camera, it won't do subdivisions as you can't see them anyway, saving some memory.įor the first time, I tried GN ray-casting for deleting trees or rocks where I have roads, pipes, or structures. These structures also use some simple GN node logic when subdivisions are created. There are only a couple of models used here, but it's enough when we add random rotation and scale to them.īunkers and other structures use my custom displacement maps made in Adobe Designer. Thanks again to the Erindale Toolkit for awesome premade nodes that help with specific functions.įor trees, I used the Sapling Tree Generator. The main material is basically divided into a couple of different materials: flat ground/rocky slopes/cliffs/beaches/sea bottom.įor object scattering, I used geometry nodes. This gets my terrain to have enough polygons so cliffs look good enough from a distance. I know there is adaptive subdivision also, but I found it to be not predictable/controllable enough this time.
Optimizations like camera culling, subdivision based on distance, and geometry deletion if it is below a specific height. Most of the material textures are from Megascans.Īfter the base terrain displacement pass, there is some geometry node optimization where I used some GN nodes from the Erindale Toolkit. The terrain base displacement is in a modifier, and the cliff/rock extra detail is controlled by the material. There are basically two different displacement passes: one for the base terrain and another one for the cliff/rock/detail. After a few days of experimenting, the mountain was scaled to be as high as 4000m and 32km wide. I decided to use real-world scale values inside Blender to make scaling stuff easier for me. The terrain base was made in Gaea.Īfter I was happy with the results in Gaea, I started experimenting with scale. The terrain was probably the biggest issue as I wanted a lot of detail for cliffs and rocky areas. Here are the links to the addons and software used in this project. There is a lot to explain, but I will try to keep it short and simple. I also wanted to see how large of a scene I could create in Blender before running out of memory.
My inspiration came mostly from Norway, Halo (game), and Paul Chadeisson's mega city/ruins artworks. I started getting into 3D by modding different games like Homeworld and Command & Conquer Generals. Before using Blender, I used Wings 3D, Maya, and 3DS Max. Hello, my name is Jukka and I am from Finland.
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