Monday, August 8, 2011

What do the values on the Minecraft debug screen represent?

Question

If you hit F3 while playing Minecraft, an overlay appears. Some of the items, such as fps, x, y, and z are obvious, but I'm curious about the values circled. What do they all represent?

Complete with freehand circle!

Answer

  • C is the number of chunks rendered over total number of chunks
  • F is number of chunks loaded outside the viewing distance
  • O is the number of chunks removed through occlusion culling
  • E is the number of rendered entities over total entities
  • B is the number of entities removed due to hidden chunks
  • I is the number of individually removed entities
  • P is the number of particles
  • T is terrain data
  • ChunkCache is the maximum number of chunks it'll load
  • x, y, and z are your current coordinates
  • f appears to be your orientation: 0 is west, 1 is north, 2 is east, 3 is south

The graph charts the time it took to load recent chunks over time (apparent lag). Tall, red spikes is bad; small, green spikes = good.

A chunk, if you're not familiar with the term, is a section of the world, equal to 16x128x16 blocks. Note that under the Minecraft coordinate system, X and Z are the horizontal axes and Y is the vertical axis, which confuses players used to other coordinate systems.

Reference

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