For better shader compatibility and standardization, checked the normal maps of all 15000+ textures, and reworked the normal textures with normal angles greater than or exceeding the 60° threshold and irregularities, and adjusted the parallax and PBR of some blocks.
Added emissive PBR and normals to Nether Star.
Reworked brightness of different grades of redstone dust.

SPBR-18 For 1.21.9 is coming soon!