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Troubleshooting Blocks

help
Troubleshooting Blocks
  • 0.0 - Trouble
  • 1.0 - Texture Troubleshooting
  • 1.1 - Texture is Black and Magenta
  • 1.2 - Texture Displays "?" on Dirt
  • 2.0 - Rendering Troubleshooting
  • 2.1 - Transparency isn't Working
  • 2.2 - Block Creates Shadows
  • 3.0 - Common Content Log Errors
  • 3.1 - Collision/Selection Box Errors
  • 3.2 - Model Errors
  • What Now?

TIP

This page contains troubleshooting information about blocks. You should read our global troubleshooting document before continuing here.

0.0 - Trouble ​

"I followed a tutorial or tried to make my own block and something's wrong!"

No need to panic! This page will help debug common issues.

1.0 - Texture Troubleshooting ​

Fix issues related to block textures.

1.1 - Texture is Black and Magenta ​

I will be reviewing three different types of blocks that have different layouts: Dirt-like , Log-like , Grass-like

Navigate to your RP/textures/terrain_texture.json. Ensure that the file is properly named.

RP/textures/terrain_texture.json
json
{
    "resource_pack_name": "wiki",
    "texture_name": "atlas.terrain",
    "texture_data": {
        "wiki:dirt_like": {
            "textures": "textures/blocks/dirt_like" // You can replace this with anything, just remember the name
        },
        "wiki:custom_log_top": {
            "textures": "textures/blocks/custom_log_top" // You can replace this with anything, just remember the name
        },
        "wiki:custom_log_side": {
            "textures": "textures/blocks/custom_log_side" // You can replace this with anything, just remember the name
        },
        "wiki:custom_grass_top": {
            "textures": "textures/blocks/custom_grass_top" // You can replace this with anything, just remember the name
        },
        "wiki:custom_grass_bottom": {
            "textures": "textures/blocks/custom_grass_bottom" // You can replace this with anything, just remember the name
        },
        "wiki:custom_grass_side": {
            "textures": "textures/blocks/custom_grass_side" // You can replace this with anything, just remember the name
        }
    }
}
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Next, navigate to your block file. In your block file, make sure you have the material_instances component.

Dirt like block example:

BP/blocks/dirt_like.json
json
{
    "format_version": "1.21.70",
    "minecraft:block": {
        "description": {
            "identifier": "wiki:dirt_like"
        },
        "components": {
            "minecraft:material_instances": {
                "*": {
                    "texture": "wiki:dirt_like"
                }
            }
        }
    }
}
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Log like block example:

BP/blocks/custom_log.json
json
{
    "format_version": "1.21.70",
    "minecraft:block": {
        "description": {
            "identifier": "wiki:custom_log"
        },
        "components": {
            "minecraft:material_instances": {
                "*": {
                    "texture": "wiki:custom_log_side"
                },
                "end": {
                    "texture": "wiki:custom_log_top"
                },
                "up": "end",
                "down": "end"
            }
        }
    }
}
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Grass-like block example:

BP/blocks/custom_grass.json
json
{
    "format_version": "1.21.70",
    "minecraft:block": {
        "description": {
            "identifier": "wiki:custom_grass"
        },
        "components": {
            "minecraft:material_instances": {
                "*": {
                    "texture": "wiki:custom_grass_side"
                },
                "up": {
                    "texture": "wiki:custom_grass_top"
                },
                "down": {
                    "texture": "wiki:custom_grass_bottom"
                }
            }
        }
    }
}
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If you followed this properly, your block should now have correct texture.

1.2 - Texture Displays "?" on Dirt ​

Problem: My custom block has turned into a dirt block with a question mark on it.

This an unknown block, which appears when the block identifier is changed or if your block JSON invalid.

Solution: Use a JSON linter and double check that your identifier didn't change. Ensure that you block has minecraft:geometry and minecraft:material_instances, or an RP/blocks.json textures entry.


2.0 - Rendering Troubleshooting ​

This section will describe common block rendering issues and how to fix them.

2.1 - Transparency isn't Working ​

Problem: You have transparent pixels in your texture file, but when applied in-game, they become opaque.

Solution: Navigate to your block file. Navigate to your material_instances component. Add the following to your component:

BP/blocks/your_block.json
json
{
    "format_version": "1.21.70",
    "minecraft:block": {
        ...
        "components": {
            "minecraft:material_instances": {
                "*": {
                    "render_method": "alpha_test"
                }
            }
        }
    }
}
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2.2 - Block Creates Shadows ​

Problem: You have block with custom geometry but it has a shadow.

Solution: Add following component to your block's code:

minecraft:block > components
json
"minecraft:light_dampening": 0
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3.0 - Common Content Log Errors ​

This section will describe common content log errors and how to debug them.

3.1 - Collision/Selection Box Errors ​

Problem: You get a content error similar to:

[Blocks][error]-minecraft:collision_box: min can't be below (-8, 0, -8) and max can't be more than (8, 16, 8)

Solution: Check your minecraft:collision_box or minecraft:selection_box components and do the following:

  • Make sure the X and Z values are in the range -8 - 8.
  • Make sure the Y value is in the range 0 - 16.
  • Make sure the box doesn't exit the block's 16×16×16 unit area.

3.2 - Model Errors ​

Problem: You get a content error similar to:

geometry.your_block contains X boxes outside...

Solution: Your geometry is bigger than Minecraft blocks allow. You can either make the geometry smaller or split it into multiple blocks.


What Now? ​

If you still have problems after trying these steps, feel free to join the discord server and ask your question there.

If you believe any information is wrong or outdated, please contribute via github!

Contributors

Edit Troubleshooting Blocks on GitHub

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