설명
Natural portals created in Niagara. Includes 6 types of portals:
Swamp, Stone, Trees, Fire, Water, Clouds.
Portals look great in both dark and light scenes.
For the types: Stone, Fire, Trees, color change is provided using a variable.
For types: Stone, Marsh - there is a permanent and having a limited service life. For other types, the duration of the effect is limited and can be changed using a variable.