Thursday, July 14, 2011

Minecraft Debug Screen?

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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