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mostly documented

This commit is contained in:
Sean Barrett 2015-04-01 00:24:46 -07:00
parent 9e5e19f5a3
commit 3bb829574d
2 changed files with 625 additions and 343 deletions
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959
stb_voxel_render.h
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9
tests/caveview/README.md
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@ -1,5 +1,11 @@
# FAQ
### How to run it?
There's no GUI. Find a directory with Minecraft Anvil files (.mca).
Copy a Minecraft "terrain.png" into that directory. Run from that
directory.
### How accurate is this as a Minecraft viewer?
Not very. Many Minecraft blocks are not handled correctly:
@ -21,6 +27,7 @@ Not very. Many Minecraft blocks are not handled correctly:
* Torches are drawn hackily, do not attach to walls
* Incorrect textures for blocks that postdate terrain.png
* Transparent textures have black fringes due to non-premultiplied-alpha
* Skylight and block light are combined in a single value
* Only blocks at y=1..255 are shown (not y=0)
* If a 32x32x256 "quad-chunk" needs more than 800K quads, isn't handled (very unlikely)
@ -66,7 +73,7 @@ Partly because converting from minecraft data is expensive.
Here is the approximate breakdown of an older version
of this executable and lib that did the building single-threaded.
* 25% loading & parsing minecraft files (4/5ths of this is my zlib)
* 25% loading & parsing minecraft files (4/5ths of this is my crappy zlib)
* 18% converting from minecraft blockids & lighting to stb blockids & lighting
* 10% reordering from data[z][y]\[x] (minecraft-style) to data[y][x]\[z] (stb-style)
* 40% building mesh data