Describe the bug
Title

To Reproduce
Enable smooth biomes in optifine

Screenshots/Videos
smooth biomes off:

smooth biomes on:

Versions
Nothirium: 0.1.4-beta
RenderLib: 1.0.7
Forge: 14.23.5.2860
Minecraft: 1.12.2
Other mods (necessary to reproduce the bug):
Optfine
Better Biome Blend
The biome is from AbyssalCraft

a bunch of other mods

Hardware
CPU: intel i7-8750h @ 2.20ghz
RAM: 16gb
GPU: nvidia gtx 1060
VRAM: 6gb

A similar issue occurs with Better Biome Blend installed (all biomes appear to have a plains grass color), and persists without OptiFine.

Fixed in v1.12.2-0.1.5-beta