Edición de «Modo Debug»

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[[File:Debug-Information.PNG|200px|thumb|Screenshot showing the debug information]]
[[File:DebugScreenAlpha.png|200px|thumb|The debug information from Indev, Infdev, and early Alpha.]]

The '''debug screen''' is triggered when the {{key|F3}} key is pressed ({{key|Fn}}+{{key|F3}} on some laptops [by default; the behavior of the F keys can be changed in Keyboard preferences]). It shows the [[chunk]] cache, the memory usage, various parameters, the player's map [[coordinates]] and a graph that measures the game's current frame rate. It can be very useful for telling other players your map location and monitoring performance.

== Legend ==

{| class="wikitable"
|-
! Name
! Description<ref>http://gaming.stackexchange.com/questions/14990/minecraft-debug-screen</ref><ref>http://www.minecraftforum.net/viewtopic.php?f=35&t=13231</ref>
|-
| C
| Number of chunk sections rendered over total number of chunks. Counts all render passes: if a chunk section is rendered twice (because it contains both water and normal blocks, for example) then it will be counted twice. 
|-
| F
| Number of chunk sections loaded outside the viewing distance. Counts all render passes.
|-
| O
| Number of chunk sections removed through [[wikipedia:Hidden surface determination|occlusion culling]]. Counts all render passes.
|-
| E (first row)
| Number of empty chunk sections. These sections are skipped for one of two reasons: Either the chunk has not yet been loaded and rendered into polygons, or the section has nothing to draw in the current render pass. Counts all render passes.
|-
| E (second row)
| Number of rendered entities over total entities
|-
| B
| Unused, always 0. May previously have been the number of entities removed due to hidden chunks
|-
| I
| Number of invisible entities
|-
| P
| Number of particles on screen
|-
| T
| Displays your max framerate
|-
| ALL
| Displays total number of loaded entities (including mobs and dropped items)
|-
| ServerChunkCache<br> ChunkCache
| The most chunks that will be loaded
|-
| x
| Player's location in blocks East of 0,0 (negative values are to the West) and after the // is your chunk number with the block within the chunk in ()
|-
| y
| Player's altitude in blocks (63 (62.9) is [[overworld]] sea level, 11 (10.9) is [[overworld]] lava flood level, 32 (31.9) is [[nether]] lava sea).
|-
| z
| Player's location in blocks South of 0,0 (negative values are to the North) and after the // is your chunk number with the block within the chunk in ()
|-
| f
| The direction in which a player is facing (south=0, west=1, north=2, east=3) and if the player walks towards x or z respectively
|-
| lc
| Max section height for the chunk you are in (Uses cubic chunk sections, so heights will display in multiples of 16 minus 1.)
|-
| b
| Shows you what [[Biome]] you are in.
|-
| bl
| (for "'''b'''lock '''l'''ight") The amount of [[light]] from other blocks (e.g. [[torch]]es) at the block your head is in. If you stand on top of a torch, this field will show a light level of 13 instead of the expected 14, due to your head being one block away from it.
|-
| sl
| (for '''s'''ky '''l'''ight) The amount of light from the sky at the block your head is in. Note that the number shown here is only accurate during the day. It shows the light level the block would get from the sun in full daylight, but does not account for the lower light levels at night or during a storm.
|-
| rl
| (for '''r'''aw''' l'''ight) The total light level where your head is, equal to max(bl,sl). Note that  because the "sl" field is factored in here, this field has the same caveats as that one.
|-
| ws
| Walking speed.
|-
| fs
| Flying speed.
|-
| g
| On ground, Boolean value, true if the player touches the ground.
|-
| fl
| The y-coordinate of the highest block where the player is able to stand, rounded up when standing on half-blocks, such as [[Slabs]]. When above the void (where there is no block), it will say 0.
|}

== Legend (1.8) ==
[[File:1.8 Debug Screen.png|200px|thumb|ScreenShot showing the 1.8 debug screen (14w33a).]]

When displaying reduced debug info, only the starred items are included.

{| class="wikitable"
|-
! Name
! Description<ref>http://gaming.stackexchange.com/questions/14990/minecraft-debug-screen</ref><ref>http://www.minecraftforum.net/viewtopic.php?f=35&t=13231</ref>
|-
| C<sup>*</sup>
| Number of chunk sections rendered over total number of chunks. Counts all render passes: if a chunk section is rendered twice (because it contains both water and normal blocks, for example) then it will be counted twice. 
|-
| F<sup>*</sup>
| Number of chunk sections loaded outside the viewing distance. Counts all render passes.
|-
| O<sup>*</sup>
| Number of chunk sections removed through [[wikipedia:Hidden surface determination|occlusion culling]]. Counts all render passes.
|-
| E (second row)
| Number of rendered entities over total entities
|-
| B
| Unused, always 0. May previously have been the number of entities removed due to hidden chunks
|-
| I
| Number of invisible entities
|-
| P<sup>*</sup>
| Number of particles on screen
|-
| T<sup>*</sup>
| Shows your max framerate ("inf" if Unlimited) and your Graphics type ("fast" if Fast and none if Fancy).
|-
| ALL<sup>*</sup>
| Displays total number of loaded entities (including mobs and dropped items)
|-
| MultiplayerChunkCache<sup>*</sup>
| The most chunks that will be loaded
|-
| XYZ
| X: Player's location in blocks East of 0,0 (negative values are to the West)<br>
Y: Player's altitude in blocks (63 (62.9) is [[overworld]] sea level, 11 (10.9) is [[overworld]] lava flood level, 32 (31.9) is [[nether]] lava sea).<br>
Z: Player's location in blocks South of 0,0 (negative values are to the North)
|-
| Block
| The co-ordinates of the block the player is on, in xyz format. Very similar to XYZ as above, excluding digits after the decimal point.
|-
| Chunk<sup>*</sup>
| The location of the player within a chunk, and the location of the chunk within the world. In reduced mode, only the location within the chunk is displayed.
|-
| Facing
| The direction in which a player is facing. Towards Positve X/Z indicates the player's alignment towards the x/z axis. The two numbers at the end indicate the player's horizontal and vertical rotation.
|-
| Biome
| Shows you what [[Biome]] you are in.
|-
| Light
| The first digit is the total light level where your feet are. Note that there are a few caveats here due to the sky light level showing the light level the block would get from the sun in full daylight, but does not account for the lower light levels at night or during a storm.<br>
The second digit is the amount of light from the sky at the block your feet are in. Same caveat as above.<br>
The third digit is the amount of [[light]] from other blocks (e.g. [[torch]]es) at the block your feet are in.
|-
| Local Difficulty
| Shows the difficulty of the chunk the player is in. See [[Difficulty]] on how this works. Followed by the amount of in-game days the player has been in the world, see [[Day-night cycle]] for more information.
|-
| Looking at
| Shows the co-ordinates of the block the player is looking at. If the player is not looking at any block, this entry does not appear.
|}

== Profiler graph ==

Pie charts in the lower right of the Shift+F3 debug screen display real time profiling information. More detailed information about one section can be displayed by using the keys 1-9. Press 0 to go back to the previous section.

== More Debug-Keys ==

* {{key|F3}} + {{key|A}} : Reload all [[chunk]]s
* {{key|F3}} + {{key|B}} : Toggle visibility of hitboxes of [[Entity|entities]], and in 1.8 shows which direction entities are looking in using a blue line
* {{key|F3}} + {{key|C}} : Make a debug crash (press keys for 10 seconds)<ref>https://bugs.mojang.com/browse/MC-942</ref>
* {{key|F3}} + {{key|D}} : Clear chat history (including previously typed messages and commands)
* {{key|F3}} + {{key|H}} : Toggle [[Data values|IDs]] of items, the durability of tools, the [[armor]] color and the scale of [[map]]s
* {{key|F3}} + {{key|P}} : Toggle automatic pause when Minecraft loses focus on / off
* {{key|F3}} + {{key|T}} : Reload textures and models
* {{key|F3}} + {{key|S}} : Reload the sound engine and all resources

== History ==

{{History|indev}}
{{History||unknown|The debug screen only had what we recognize as "the top part with all the numbers". This debug screen was not activated with F3, but as a toggle in the options.}}
{{History|alpha}}
{{History||1.1.0|The debug screen was no longer listed as an option and required F3 to be held down to activate.}}
{{History||1.2.3|The coordinates were added to the debug screen.}}
{{History|beta}}
{{History||1.3|The debug screen, along with other function key controls, became a toggle.
|When the debug screen was open, it would show numbers above every mob; these numbers being the mob's Entity ID. These were visible through blocks, making F3 a very useful mob-finder.}}
{{History||1.7|The "f" coordinate was made visible in the debug screen (facing direction).}}
{{History||1.8|The ability to see the level's [[Seed (Level Generation)|seed]] was added.
|Removed entity numbers being shown above mob's head. Some players felt that it was cheating and that it took away from the game.}}
{{History|release}}
{{History||1.2.1|snap=1.2.0pre|Information about the biome and light level of the player's location were added. The seed in multiplayer was made hidden, showing as "0".}}
{{History||1.2.4|Pressing {{key|F3}} ({{key|Fn}}+{{key|F3}} on Mac and some laptops) brings up the debug screen but without the graphs. The graph will appear on pressing {{key|Shift}}+ {{key|F3}} ({{key|Fn}}+ {{key|Shift}} + {{key|F3}} on Mac and some laptops).}}
{{History||1.3.1|rowspan=3|snap=12w18a|Information about the player's speed and whether the player is touching the ground were added.
|Coordinates are now rounded to 5 digits.}}
{{History|||snap=12w21a|Information about the world's seed was removed, seen instead by pressing the chat key and typing "/seed".}}
{{History||1.4.2|rowspan=2|snap=12w39a|Fl, x and z chunk coordinates, and more rotation (f) information were added.}}
{{History|||snap=12w41a|Shift+F3 now shows the profiler graph.}}
{{History|u}}
{{History||{{1.8}}|rowspan=20|snap=14w02a|Now shows which axis you are facing after the cardinal direction: "Towards positive/negative X/Z".}}
{{History|||snap=14w04a|The crosshair will display 3 short colored lines to indicate the direction of each axis: x/red, y/green, z/blue.
|The x coordinate line will now be bold when looking east/west, similarly the z coordinate line will now be bold when looking south/north.}}
{{History|||snap=14w05a|Text now has a background.
|Replaced x, y, z, b, bl and other labels with more understandable labels.
|"Light" is now the light levels at feet, not eyes.}}
{{History|||snap=14w06a|X, Y, and Z title has been changed from 'Feet' in the previous snapshot, to 'XYZ'.
|Day counter added, which increases by 1 every dawn.
|Now displays difficulty: Peaceful- 0.00, Easy- 0.75, Normal- 1.50, Hard 2.25 (but numbers slowly increase the longer you are in an area).
|Now displays player rotation in degrees and quadrants.}}
{{History|||snap=14w11a|On the right hand side, a display shows up if you are looking at a block, showing its ID and block states.}}
{{History|||snap=14w17a|All blocks now have their info displayed on the right hand side of the F3 debug screen.
|Removed the "Facing negative/positive x/z" from the F3 menu.}}
{{History|||snap=14w20a|Readded "Facing negative/positive x/z".}}
{{History|||snap=14w25b|{{key|F3}} + {{key|B}} now also shows which direction entities are looking in using a blue line.
|Removed the line on the right-hand side which had displayed the name of the block model the player was looking at.}}
{{History|||snap=14w29a|A 'Reduced Debug Info' toggle now exists within multiplayer settings to enable/disable reduced information on the debug screen.
|The <code>reducedDebugInfo</code> gamerule allows you to enable/disable reduced information on the debug screen. This overrides all 'reduced debug info' settings in clients.}}
{{History|||snap=14w30a|Now displays how many chunk sections are being rendered currently and how many chunk sections are out of view in percent, the OpenGL version, display size, vendor and GPU.
|"Vanilla" added to the version number.}}
{{History|foot}}

== Trivia ==

*Lc, Biome, and the lighting values do not display when you are in the [[void]] or above y = 255 (in the Overworld)

*When triggered in the [[nether]], the "B" (biome) displays the biome of "Hell". In [[The End]], until release [[1.8]] (snapshot [[14w17a]]) it indicated the biome "Sky", likely because The End was originally going to be the [[Sky Dimension]].

*When used in a chunk that was created prior to Alpha 1.2(when there were no biomes), the B field will read "Ocean".

*Deeper into the profiler (Shift+F3), some tasks will have numbers higher than 9 and can't be accessed. Pressing the two keys simultaneously will not open the task.

== References ==
{{Reflist}}

{{Minecraft}}

[[Category:Development]]
[[Category:UI]]