Thanks! Should be interesting to see how it works out.

*bump* In order to get the Chrysler Building (and other tall buildings and terrain) to work properly, I need chunks taller than 256 blocks. I am currently investigating how it can be done. Details of my attempts and questions on how to resolve the issues I have encountered:

https://github.com/mcedit/pymclevel/issues/78
http://www.minecraftforum.net/topic/1776866-prevent-chunk-re-gen-on-tall-chunks/

Namely:
Since the Anvil format allows chunks (worlds?) of arbitrary height, I'm using pymclevel to create worlds/chunks taller than 256 blocks. I tried opening a level using pymclevel, setting the level.Height, and then opening chunks and setting chunk contents within the larger height. Unfortunately, when I load the resulting world with some 512-block-tall chunks in the game, the chunks with pieces above y=255 get regenerated. The chunks that only contained blocks below the Y=256 mark (due to how Anvil chunks are stored in 16x16x16 pieces) were not regenerated. Is there a level/world tag that can be set to prevent the vanilla client from forcing those tall chunks to be regenerated?

I'm creating a KMZ/Collada-to-Minecraft voxelizer, producing structures like this; I eventually want to generate New York City in Minecraft:

Again, just turn the building and your monitor on its side

The Statue of Liberty would also be an interesting test of your system, and would fit within your height limit...

Of course

DShiznit: Indeed, that's a good idea. I also notice that on certain shallow slopes there is a bit of an error from the raycaster; I need to tweak that.

*bump* Still no response from anyone in either of those threads. Does anyone know of a decent place to find halfway intelligent MC devs to speak with?

You might try contacting Mojang directly. It's a long shot but if you show them what you've done already, it might peak their interest enough to at least answer your questions. Twitter seems to be their preferred method of communicating with fans, so I'd ask the question there to one or more of their devs.

(wink bump the chicken bug fix I posted wink)

That's actually a great idea; I have done so:

https://twitter.com/kermmartian/status/326758243412086786

you added an extra c in "cemetec.ch" by mistake. Dunno if you can fix that now...

Thanks for catching that. I deleted and re-created the tweet.

Now your twitter link is borked...

I don't know what you're talking about.

I saw what you did there

Do you think I should bump my tweet at some point, in case he missed it?

I retweeted it to try and up its "ranking".

I noticed that. I was worried that perhaps it was too far down his feed, though, and he never saw it. I'm not sure what the criteria for people to see @ tweets are, to be honest, especially when they have a lot of followers.

I believe every retweet is entered into his feed individually, so each one is another chance for him to see it.

Since I got no response from Jeb, I used MCP to decompile Minecraft 1.5.2, and discovered the following places where I need to fix hard-coded height limits. The starred ones are particularly vital, but they're all important to fix. I want to make the scripts use the level data-specified level height if one exists, or the default if none exists. (Edit: This list is not comprehensive; see the patchset below).
Code:



Edit: I got it to work! I can stand on the spire of the Chrysler Building at y=384 meters. The required changes are unfortunately quite extensive, as documented below. I'm particularly concerned that I need to change packet type 52 to use long-type chunk piece masks instead of ints, though. I need to think of a way to accept both "standard" and "tall map"-style chunk messages (perhaps even a new message type?).
Code:

That is awesome. So to make this work, you need to replace the minecraft executable?