Attempts to optimize the game by making item frames render with 1 shape instead of 5. Making the frame of the item frame flat with the middle part instead of extruded outwards.
If you are here for performance improvements, combine this with ImmediatelyFast
Without:
With:
Original by u/RandomIntel: https://www.reddit.com/r/Minecraft/comments/5x3im6/i_updated_simple_item_frames_for_all_the_versions/
Updated to 1.16.4 by u/hazzeFox: https://www.reddit.com/r/Minecraft/comments/lhfagg/i_updated_randomintels_simple_item_frames/
Updated to 1.21.4 by me (Cobwebblocks): Adds glow item frame and changes resource pack version to match game version