• Make both layers visible
• Select the Avamesh Armature (in Pose mode)

Rotate the arms of the avamesh to match the Belleza arms. You may notice that the rigs differ slightly.

• Make sure the Avamesh is selected
• Open the Appearance panel
• Click the white stickman to switch avamesh to the SL Rest shape

Now the Avamesh Rig and the Belleza Rig match perfect.

• Make only the layer with the Avamesh visible
• Select the Avamesh in Object mode
• Open the Avastar Skinning Panel
• Ensure the white snowflake icon is Selected
• Unbind from Armature

Now you have an Avamesh in A Pose but not rigged. You can delete the Avamesh Armature and all its children. We only work on the frozen Avamesh…

remove all faces from Avamesh that will not belong to the Top. In the image i have selected all to be deleted faces:

Remove more faces from the shoulder part to create thinner straps. I also assigned a new Material to the top and set the base color. At the end we will have something like in the image.

Before we bind the top to the Belleza Armature, let us first use a Shrinkwrap modifier to adjust the shape.

• Go to Object Mode
• Make the Belleza Layer visible
• Add a shrinkwrap modifier

Set values similar to the image:

• Target: VenusNatural
• Offset: 0.003
• for the rest see image

As a final polishing i also smoothed the mesh vertices and then i applied the shrinkwrap modifier. I also inspected the topology again and fixed a few oddities around the armpits and now i am almost happy with the result. It might still have too many faces, … we will look at this later.

We do not want to mix weightmap information between Avamesh and Belleza. So we remove all weightmaps from the Top.

With Avastar:

• Open the Avastar Tool Box
• Clean Weightmaps (see image)
• In the redo panel disable the option ‘Only Empty Weightmaps’ (see image)

Pure Blender:

• Open the Vertex groups widget
• Click the Arrow down Icon
• Select Delete All Groups

• Select the Top in Object mode
• And the armature
• Open the Avastar Skinning panel
• Get weights from Meshes (image)
• Bind to Armature

• Select the top
• Open the Avastar Settings Panel
• Select the Skin&Weight workflow
• Pose the armature into some extreme
  but still reasonable position
• Keyframe the extreme pose on frame 80
• Reset to restpose and keyframe the restpose to frame 1

Now you can use the timeline for inspecting the weights also in Mesh Edit mode.

When you play a bit with the poses you will eventually find one big issue on the shoulders and on the armpits (Image)

In our case the reason is too much weight on the UPPER_ARM Bones. WE use Blender’s Levels tool to fix this.

• Open Blender’s vertical Tools Tab
• Open the Weight Tools panel
• Select the UPPER_ARM Bone (Left or Light)

Now call the Levels tool and Use the Gain in the Operator redo panel to adjust the overall weight strength of the UPPER_ARM until the straps touch the shoulder but do not sink in.

• Switch to edit mode
• Select the vertices around the armpit.

• Call the Levels tool again and adjust the gain value until the selected verts are fixed for your purposes.

• You can do a similar trick on the upper part of the shoulder straps.

Tip: Since we have the X Mirror option enabled the Weights are automatically mirrored to the other side. So you only need to work on one side of the mesh