Tinies and Giants

About this Document...

Content:

Create a Tinie or Giant

Import the Mesh to your online world.

 The Video:

  • Create a Character.
  • Scale the Armature
  • Use the Collada Exporter
  • Use the SL Importer for Upload

What does Avastar provide?

Avastar basically supports the creation of animateable Models (Avatars&attachments) and the creation of animations. Therefore the tool adds various functions and user interface elements to Blender.

The full functionality of Avastar can be a bit overwhelming on first sight. You should be prepared to spend some time and patience to get it all working nicely for your projects.

What does this Document provide?

Creating Tinies and Giants with Avastar is really easy. Actually it all boils down to scaling the Avatar in Object mode and knowing about how to handle the scaling during export…

We expect that you have basic knowledge about Blender.

Abstract

This is a method to convert any character into a Giant or Tinie. Actually this is achieved by scaling the armature in object mode and then know the 3 little secrets to succeed.

 

Secret 1: Scale it in the right way

The by far easiest method to get your Character right is by scaling the Armature in Object mode.

  • Select the armature in Object mode
  • Scale it up or down as you like

You can see the object scale in the N Panel on the right side of the 3D View.

Image420

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Secret 2: Apply the Scale in the right way

After you have scaled your character to the desired size you only need to apply the scale. From the Footer menu in the 3D View navigate to:

 Object -> Apply -> Scale

This will “bake” your Scale into the Rig. The rig will keep its size, but its scale is normalized (set to <1,1,1> )

  • Now go to Pose mode
  • Open the posing tools in the tool-shelf
  • Convert your rig to bind pose.

Note: The default options for the bind pose converter are just right in almost every case. Please check the option tool tips for more explanations.

Image421

The Bind pose converter has setup all Rig data so that it now can be exported without issues.

Export the Meshes

Now select the parts of your character which you want to transfer to Second Life. One easy method to select the parts is by using the Outliner.

Tip: Hold down the SHIFT key while selecting multiple items from the list
Image422

After you have selected all meshes finally export your selection to Collada. You find the Collada Exporter at the Top Menu:

File -> Export -> Collada (Avastar)

Optionally take a look at the advanced section of the Collada tab. There you can disable the option

only weighted bones

This ensures that all deform bones including the eye bones are added to the export, even if no mesh is weighted to those bones. While this is not strictly necessary, it ensures that all bones are at the expected locations

Image423

Finally export as usual. But this is not the end of the story. We also need to do one more thing in the Second Life mesh importer.

Secret 3: Import the Meshes in the right way

After we have opened the mesh we can check its look in the preview window.
We also can enable the preview of the skin weights and joints here. But keep in mind that enabling joints and weights in the previewer is only good for inspection, but this alone will not upload the data!

Therefore we also have to open the upload options tab. Here we have to enable:

  • With Skin weights
  • With Joint positions

You also can play with the Z value. This controls the hover height of your character.

Image424

Finally we highly recommend to check that your model has a convenient name. The default model name is taken from the first of the imported meshes and this might not be the best matching name for the imported collection (as seen in the image above and in the video)

Some more tips

  • The system character’s eyes will almost never match in size with your mesh character. Therefore you better create your own mesh eyes and import them along with the character.
  • Before you wear your Tinie or Giant mesh you probably first want to wear some invisibility outfit that will hide your default avatar-meshes (including the Eyes)
  • You will probably need to adjust the character height by using the hover slider (Right Mouse click on your Avatar, then select the Hover Height option to change the location of your character.
  • If you need more precision to adjust the hover height, then you also can modify the Z value in the importer panel (See image above).