More on bouncing bits

So, SL is all lit up about the forthcoming bouncing bewbs et al in Viewer 2; so much so that people are stampeding over to the website and downloading the Snowstorm latest development version (2,6,3) of the Viewer in which Avatar Physics are to be found.

Setting the Avatar Physics rendering slider

To determine how well your Viewer renders Avatar Physics, go to ME -> PREFERENCES -> GRAPHICS, click on ADVANCED at the bottom of the tab, and then adjust the Avatar Physics detail slider.

In what might cause a little confusion for those used to using breast physics in TPVs, Avatar Physics are treated as a new clothing layer in Viewer 2. To enable them, therefore, you need to:

  • Open your Inventory and click “+” at the bottom of the Inventory tab
  • Select NEW CLOTHES -> NEW PHYSICS from the drop-down menu that appears
  • A new clothing layer is created called, by default, “New Physics”.

Once created, wear the new clothing layer, and:

  • Swap to the My Appearance tab in the Sidebar
  • Click on WEARING
  • Right click on the New Physics clothing layer (or whatever you’ve renamed it to) and select EDIT OUTFIT
  • Click on the tools icon to the right of the selected layer to display the Avatar Physics options tab.
Avatar Physics - main options

This tab contains a number of controllers:

  • Breast Bounce (open by default on first use)
  • Breast Cleavage
  • Breast Sway
  • Belly Bounce
  • Butt Bounce
  • Butt Sway
  • Advanced Parameters

Each of the first six options comprises a series of sliders rated from 0-100 which adjust four parameters: mass effect, spring, gain, and damping.

Advanced Parameters contains an additional set of parameters (mass, gravity, drag) for breasts, belly and butt respectively. Again, each of these is controller by a slider rated from 0-100.

In all cases, 0 = effect not seen; 100 = effect on maximum exaggeration. The best way to sort out how to set the sliders is through experimentation and finding something you’re happy with. Once you’re happy with things, click the SAVE button at the top of the tab, or SAVE AS at the bottom, if you wish to rename the layer.

Some things to note:

  • Like the Breast Physics in TPVs, activating Avatar Physics in Viewer 2 broadcasts the effects to other compatible Viewers
  • The Avatar Physics system is not    compatible with the Breast Physics in TPVs – you won’t see bouncing bewbs for others using a TPV with Breast Physics enabled; similarly, they will not see your Avatar Physics.

Happy bouncing!

6 thoughts on “More on bouncing bits

  1. LOL! 🙂 Now that’s what I call a Perfect Waste of Time for the LL developers. The good news is that most of that code was on the TPVs, free to grab, and they just expanded the model a bit… kudos for that.

    On the other hand, I can imagine this to be useful for the upcoming “grafted” meshes on top of the avatar skeleton — so you might be able to tweak the parameters to get, say, a quadruped furry avatar to move more realistically…


  2. I’ve set the old code from Danny free by uncommenting. It just does exactly the same and it was there for ages. Commented out :).

    The bouncing butts are fun, but what LL calls “bellies” is creepy. It’s not the bellies that move (and that one can set in appearance). It is body fat that moves. And Danny called it so correctly in his code. Creepy it is.

    Anyway, it will be in the new Rainbow to come 🙂


  3. @Gwyneth Llewelyn LL Implementation is totally different from the simple breast physics that was included in the TPV’s, there isn’t really any comparison beyond the small obvious detail than both systems make breasts wobble.


  4. As it’s a clothing layer will this mean that eventually clothing will be able to follow the bounce so people don’t pop out at inapprorpiate moments?


  5. As I understand it, another significant difference between the TPV physics and those in the LL viewer is that your settings apply to your avatar only. Apparently, in the TPV version, your settings determined how you viewed everyone else’s jiggly bits too. Now all will see you move as you intended and vice versa.


    1. Yep, I mentioned that fact in the first post on the subject, but should have re-iterated it here.

      As the Avatar Physics are attached to *your* avatar as a clothing layer, you maintain full control over the degree of movement *and* who gets to see it. If you don’t want others to see any movement, simply remove the Avatar Physics layer from your avatar.

      Over and above that, even with the layer worn, only those using Viewer 2.6.3 will see whatever movement you have set: current TPVs will not render the movement at all (although this latter point will change as the 2.6.3 code is taken up by Viewer 2 compatible TPVs and people using them will eventually be able to see your movement, and set movement for their own avatars).


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