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filament

filament

Data driven Items, Blocks, Decorations and Mobs for Fabric based servers. No client mods required!

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139
Decoration
Utility
AboutGalleryChangelogVersions

filament 1.3.13+1.21.1

by tomalbrc on Nov 21, 2025
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Fixes destroy stages for decorations

filament 1.3.12+1.21.1

by tomalbrc on Nov 21, 2025
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Fixes crash when decorations broken

filament 1.3.11+1.21.1

by tomalbrc on Nov 17, 2025
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Re-introduces the armor, enchantable, repairable and elytra behaviours

filament 1.3.10+1.21.10

by tomalbrc on Nov 16, 2025
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filament 1.3.10 for 1.21.1 and 1.21.10

New features

  • Stairs block behaviour for custom stairs! Thanks to @flameddogo99

Fixes

  • Minor bugfixes
  • Fixes a crash on server stop o use the horizontal_facing behaviour. It will only add 4 blockstates (1 for each direction) instead of 8 for each decoration.

filament 1.3.10+1.21.1

by tomalbrc on Nov 16, 2025
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filament 1.3.10 for 1.21.1 and 1.21.10

New features

  • Stairs block behaviour for custom stairs! Thanks to @flameddogo99

Fixes

  • Minor bugfixes
  • Fixes a crash on server stop

This 1.21.1 version is a backport of the 1.3.x versions of filament. It's 99% feature complete with the 1.21.10 with a handful of exceptions:

  • The forcefor particle emitter block behaviour has no effect
  • Custom TNT's explosion power is not configurable
  • No per-player animation
  • Damage-source for custom maces might be incorrect

Some of the new features if you update from 0.14:

  • Oxidizable blocks and decorations
  • Custom animated chests and double chests with custom container sizes
  • Item-based backpacks for any items through the filament:backpack component
  • Connectable furniture
  • Fire blocks
  • Custom tridents
  • Behaviours that run commands or particle effects when a players enter its radius
  • Sign behaviour for custom signs with multiple lines and elements

And much more!

Migration:

Old datapacks / content-packs that were made for 0.14.x and later should still work.

A few fields were deprecated but will still work:

  • virtual in the config for blocks is now a field in the properties instead of the root object
  • The "waterloggable" property is now a block-behaviour
  • The "rotate" and "rotate_smooth" fields are now handled through behaviours, you can use the rotate behaviour with the smooth option set to true for 45° interval rotations or use horizontal_facing for 90° rotations.

All block behaviours are compatible with decorations as of 1.x!

For optimization purposes / to reduce the total amount of block-states used by decorations you might want to use the horizontal_facing behaviour. It will only add 4 blockstates (1 for each direction) instead of 8 for each decoration.

There might have been some breaking API changes, in case you made custom behaviours! Please make a backup of your world or use a test environment to make sure you can roll back in case something breaks!

filament 1.3.9+1.21.9

by tomalbrc on Nov 7, 2025
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  • Improves reloading item, block and decorations through /reload
  • Adds more options to the grass_spread behaviour

filament 0.14.13+1.21.1

by tomalbrc on Nov 5, 2025
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  • Fixes wind charges breaking decorations
  • Adds common-protection-api support
  • Updates bil to 1.2.6 to fix incorrect uv mapping for ajmodel

filament 1.3.8+1.21.9

by tomalbrc on Nov 3, 2025
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filament 1.3.8+1.21.7

by tomalbrc on Nov 3, 2025
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  • Fixes explosion handling for decorations
  • Adds support for claim mods like flan and goml through common-protection-api by patbox

filament 1.3.7+1.21.9

by tomalbrc on Oct 28, 2025
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filament 1.3.7+1.21.7

by tomalbrc on Oct 28, 2025
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  • Adds a rotation field for cosmetics
  • Fixes issues with container and backpack menus

filament 1.3.6+1.21.9

by tomalbrc on Oct 26, 2025
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filament 1.3.6+1.21.7

by tomalbrc on Oct 26, 2025
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  • Allows for backpacks of any size
  • Improves backpack handling
  • Fixes an issue where the server would not shutdown properly

filament 1.3.5+1.21.9

by tomalbrc on Oct 17, 2025
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filament 1.3.5+1.21.7

by tomalbrc on Oct 17, 2025
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Features:

  • Adds filament:backpack component to turn any item into a backpack that can be opened in your hand with right-click
  • Adds lever block-behavior
  • Adds button block-behavior
  • Adds snowball item-behaviour
  • Extends the shoot behaviour with more options
  • Adds a damages field for item_interact_execute to damage the item
  • Adds a damageKey field for the interact_execute decoration behaviour
  • Adds an option to use minimessage to format text instead of fabrics Placeholder API
  • Adds blockbench 5 format support

Bug fixes:

  • Not all decoration blocks updating their light emission when changed through the lamp behaviour
  • Some components like enchantments not loading properly from filament jsons

filament 0.14.12+1.21.1

by tomalbrc on Oct 17, 2025
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  • Adds blockbench 5 and .ajblueprint model support

filament 1.3.3+1.21.9

by tomalbrc on Oct 5, 2025
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  • Fixes light emitting block not emitting light when placed
  • Fixes texture uv issues for bbmodel and ajblueprint animated models

filament 1.3.2+1.21.9-rc1

by tomalbrc on Sep 28, 2025
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  • Adds container loot table support for decorations
  • Fixes decoration not making sounds in some cases when broken
  • Adds decoration container support for copper golems

filament 1.3.1+1.21.7

by tomalbrc on Sep 28, 2025
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  • Adds container loot table support for decorations
  • Fixes decoration not making sounds in some cases when broken

filament 1.3.0+1.21.7

by tomalbrc on Sep 18, 2025
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  • Adds template system with custom placeholders
  • Adds a scale property for decorations to scale the model
  • Adds particle_emitter block-behaviour for particle emitting blocks and decorations
  • Adds status_effect_emitter block-behaviour to apply status effects to entities with the blocks radius
  • Adds area_execute block-behaviour to run commands when a player enters/leaves/stays in the given radius around a block
  • Adds commandIncorrectKey, commandsIncorrectKey, and animationIncorrectKey for interact_execute which are ran when the player interacts with an invalid key (if specified)

Bug fixes:

  • Decoration block placement for some configurations
  • Allow interaction with interact_execute decoration with items in hand
  • Commands not being run at the players position when atBlock was set to false
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