У вашего броузера проблема в совместимости с HTML5
General info about the Procedural Nature Pack to help get you started!
0:55 - Assets Overview and Folder Structure
3:38 - Creating Terrain and adding Landscape Material
4:45 - Adding Terrain Layer Info
6:20 - Fix Tessellated Terrain Holes
9:10 - Adding Foliage
13:23 - Boulders and Variations
14:40 - Vertex Painted Moss on rocks
16:05 - Boulder Scale variations and placement
18:31 - Fixing Flat Landscape Terrain Bug
20:02 - Adding the River Spline Blueprint
21:52 - River Minimum Speed and Material Options
22:48 - River Scale per Spline Point
23:58 - Material Instances Overview
25:25 - Creating a Simple Tree with the Spline Blueprint
28:14 - Adding Branches to the spline
33:58 - Creating a more Advanced Tree
35:48 - Adding Roots and branches
37:32 - The Vine spline and options
Check out the fly through of my the Demo Scene here!
https://www.youtube.com/watch?v=gut5ermayK4
Purchase the Procedural Nature Pack here:
Purchase it here! - With included source files
http://www.purepolygons.com/store/p23/ProceduralNaturePackVol1
Or here from the Unreal Marketplace
https://www.unrealengine.com/marketplace/procedural-nature-pack-vol
Unreal Engine Forum Thread for Pack - https://forums.unrealengine.com/showthread.php?74295-Procedural-Nature-Pack-Vol-1