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A Technical History of Beyond Skyrim (WIP)

This article outlines some technical aspects of Beyond Skyrim in order to preserve a correct history and debunk some myths.

Heightmap

Reasons for developing a common heightmap, the two worldspace bugs, BSTamriel.esm

Beyond Skyrim grew out of a forum thread some weeks after Skyrim's release, urging beginning province mods to avoid some of the mistakes seen in the modding scene for Oblivion. One such alleged mistake was that province mod projects did not collaborate, using custom heightmaps that did not fit together, rendering the mods incompatible. When Tamriel Heightmaps, a common heightmap resource for Oblivion, eventually did appear, it was too late and too unattractive for existing mod teams to consider using it.

Although there is visible land beyond Skyrim's borders, it is only LOD, i.e. low-resolution versions of the land that is visible from a distance but cannot be interacted with; furthermore, it cuts out roughly half of the way into the neighboring provinces and is not accurate to the scale of Tamriel implied by Skyrim's landmass. And thus, the All-Tamriel Heightmap project was started to create lore-friendly and correctly scaled heightmaps for the other provinces that are compatible with Skyrim and with each other. The heightmaps were modeled in World Machine and imported into Skyrim with TESAnnwyn. The original plan was that the heightmaps would be placed into the vanilla worldspace, meaning one could travel out of Skyrim with no load screen. Several issues changed this plan.

1. A problem with LOD, caused by difficulties with creating a custom lodsettings/Tamriel.lod file and having it be loaded by the game, jeopardized the prospects of being able to display LOD beyond the limits specified for the vanilla worldspace. Since there were no such difficulties involved with a lodsettings file for a custom worldspace, it was eventually decided to put all the custom provinces into one custom worldspace, separate from the vanilla one.

Master Limit

DLCs as masters, SSE CK Fixes master limit remover

Legendary Edition

Projects switching to SE, parallel versions of BSAssets, eventual deprecation of LE assets

SKSE

SKSE as end user requirement: dependency of Bruma LE (and used SKSE script functions before removal in order to work on Xbox), former dependency of Atmora (DOBJ manipulation for combat music)

SKSE as developer tool: Fuz Ro D'oh, Beta Comments, Ingame Editor, etc.

Animations

Improvements to ck-cmd and Skyrim Behavior Tool finally allowing for reliably creating custom behavior graphs