Foliage and landscape problems

Hello everyone
I have 2 problems about foliage and 1 problem about import materials to landscape .
1.When i create foliage (for example : trees + rocks ) unreal engine 4 work very slow .
2.i have light mass error for build lights . i think this error for foliage .

3.i want import material to my landscape but i see , material is to be square .

how can i fix these?

unreal engine 4.9.2
CPU i7
RAM 8gig
Graphic 4gig

  1. you will have to post more information about your meshes → tri count, texture resolution,…
  2. Lightmap too large warnings? - Rendering - Unreal Engine Forums
  3. you either have to make the texture more seamless or add some variations in your material -> take a look at the grass material from the starter content :slight_smile: