To all resource pack makers: in 1.13 pre-3 the folders for block and item textures are renamed to "block" and "item". And model names in blockstates now require "block/". Enjoy rewriting all
Minecraft 1.13 - 3D TEXTURE PACK - Default 3D Resource Pack for Minecraft Java 1.13 - YouTube
Texture Packs for Minecraft 1.13.1
Minecraft Resource Pack — Starting work on the new 1.13 blocks! : )...
1.13 Default (Jappa's Textures converted to the 1.13 format) Minecraft Texture Pack
Minipack Resource Pack for Minecraft 1.13.2 | MinecraftSix
The Jicklus Green Resource Pack for Minecraft 1.13.2 3 | MinecraftSide