У вашего броузера проблема в совместимости с HTML5
This video shows how to use GPU Instancer with terrain grass and vegetation. We talk about the GPUI foliage shader, the detail manager and show how to improve your existing terrains with GPU Instancer.
GPU Instancer is a Unity asset that increases performance when rendering extreme numbers of objects on the screen.
For more information, see: http://www.gurbu.com
Asset Store: https://assetstore.unity.com/packages/tools/utilities/gpu-instancer-117566
Unity Forums: https://forum.unity.com/threads/released-gpu-instancer.529746/