What is the HDT Physics Extension for Skyrim?

The HDT Physics Extension for Skyrim (HDT) is a plugin for the Skyrim Script Extender (SKSE). It uses the Havok physics engine (Havok) that already exists in the game and applies it to other uses in the game.

Check out a couple demo videos: DailyMotion (nsfw) DailyMotion (nsfw) YouTube ponytail (nsfw) YouTube skirt (loud music)

When originally released, the extent of the use of the Havok physics engine was restricted to things bouncing around; whether they be dead bodies, the odd skull, or a room full of weapons. If you wanted a cape that flowed when you ran, it would have been an animation that detailed the movement. While this simulates realism, it isn't realism.

HDT Physics Extension alleviates the problems associated with animation by actually using the physics engine that is part of the retail game. Through some creative use of SKSE, HydrogensaysHDT (the author of the Physics Extension plugin) has provided a set of tools that create game physics objects that interact and respond to the world around them. A ponytail can bounce off a womans back, a cape can flow in any direction and boobs can bounce around and react to touch.

Credits:

HydrogensaysHDT, original author: All credit for development of the base plugin goes to HydrogensaysHDT, the original author and developer of the source. Thanks for your work!

Download

• LoversLab.com. Also available is the archive of previous releases, and add-ons such as hair and earrings.
  • Dedicated support forum for Q&A, add-on releases, other support.
• NexusMods.com. Only have to think abotu the most current release with ease of installation. Pretty much click & done.
  • Release thread for Q&A
• Baidu.com. The original download of the base mod. Includes video tutorials, the original demo item, and the original Just For Fun (hdtHavokModifier) app.

Documentation

• InstallingHDT: A guide to get you through the basic setup.
• LoadOrder: Setting up proper load order.
• CustomizeGuide: A guide on how to make the mod do exactly what you want.
• Attach HDT-PE to an existing mesh: A guide for putting the mod on any mesh you may have. It is the bare-bones beginning.
• FrequentlyAskedQuestions: A table of the questions and their answers.

AddonMods

A page with a list of known addon mods.

Source Code

The Source tab contains the complete source to HDT Physics Extension Skyrim mod. To use as a base for other mods, credit to HydrogensaysHDT and links to this page are required.