>>1001272

>how do they go about texturing such a huge plane without using enormous textures, how do they export it into a game engine.

The mesh of the terrain is cut into sets of chunks that are optimized for effective frustum culling so you only render the portion of detailed geo
you absolutely need at any given time, each segment of the ground mesh has an upper bound of polygons they can have so you never have all the millions and millions
of polygons that the full high detail map consist of loaded into memory except the few local chunks to where you are standing.

The geometry is typically textured by mixing 2 tiling materials that have a similar look like 'GrassA' 'GrassB' that are blended between using some form of
noise map that masks the repeating pattern. Each chunk of landscape geometry than typically uses a 'splat map' to blend between up to 5 different materials.
so you use the RGBA value of the splatmap to blend between materials say 'grass' 'sand' 'debris' 'rocks' 'mud' and if you need adjacent areas to use additional
materials you make sure they share bordering materials in the splat map and swap out say your 'debris' and 'sand' material to 'dirt' and 'asphalt' on that model.

Back | Go to board

Board:

/3/

Thread:

3d open worlds (non-unreal)