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Everything in this pack is automated. It will take you less than 5 minutes to create an advanced ecosystem specially designed for open world games. In fact, the demo level from this pack is a real-world landscape (the heightmap was created from Digital Elevation Model with 1 meter horizontal precision so it is a perfect copy of a real landscape from USA) with a surface of 64 square KM. Everything was designed to support even higher landscapes because all the meshes come with LOD's (I am talking about foliage moving meshes like grass, trees, flowers, bushes) because the rocks have NANITE enabled so they don't require any LODs.
Most of the textures are 4k but some of them were downgraded to 2k by changing the LOD Bias from 0 to 1 so the level can play without any texture streaming issues even on default texture streaming budget (1 GB). If you need to create cinematics or really high quality scenes than all you have to do is to change the LOD Bias to 0 inside texture properties panel and you will suddenly have 4k textures for most of the assets and landscape layers.
The automatic landscape material is designed in such a way that for all 11 layers, there are 2 level of details: one level which is very detailed, when the player is closer to the texture and another one which is less detailed, when the player is further away from the texture. This way, the player will always see the right amount of details, as it is natural.
For the last LOD, the trees have 2d Billboards with only 2 triangles, so basically you can add as many trees as you want without a significant loss of performance from the far away trees.
The assets are as optimized as possible but let's not forget that Lumen is real time global illumination system so for lower end computers, there will be performance issues. For those cases I recommend the following changes into Project Settings - Rendering: 1. disable Lumen, 2. disable reflection or change it from Lumen to Screen space 3. replace Virtual Shadow Maps with Shadow Maps (this alone will give you at least 10-15 fps more). As soon as foliage will be nanite enabled in engine, all those optimization issues will disappear.
This pack is designed to help you procedurally populate your open world environment in about 2 minutes.
