1What is Mesh?

• Mesh is short for “Mesh Model”. These are 3D objects created outside of OpenSimulator using tools that save objects as an outer surface that is a mesh or blanket of triangles.

• There are many formats for saving mesh models. The formats have evolved over time with tools that create them. Most formats can be converted (imported/exported) within your tool of choice.

• OpenSimulator uses the Collada format with .dae file extensions.

• A few free tools for creating, manipulating, and/or converting Collada mesh models for use in OpenSimulator are listed below:

Tool UseBlender model creationSketchup (free for non-commercial use) model creation

Wings3D model creationMeshLab conversion

2 How does it work with OpenSimulator?

• A mesh model can be uploaded into OpenSimulator using the preferred MOSES STTC Viewer (based on Firestorm) or using the current SecondLife Viewer.

• Some newer (v. 2) viewers may show mesh models in-world, but may not upload them.

• Older viewers (v. 1) won’t show meshes properly. They are seen as a few odd triangle prims.

3Where to get models?

• There are many locations for finding 3D models on the Internet, such as:– sketchup.google.com/3dwarehouse• Comprehensive library of free models • Some downloadable directly as Collada• Caution: For various reasons, many

models don’t properly convert, upload or rez in OpenSimulator

• The preferred library for MOSES is the ADL 3D Repository

4 ADL 3D Repository:3dr.adlnet.gov

• It can be located from the MOSES LINKS tab:

• You will need to register for an account to download these models.

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5 Creating an ADL 3D Repository Account

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6 Getting the models from ADL

• Check for a welcome message from ADL using the email account used during registration

• On the ADL site, Login with your new account

• Search, Click Tabs, Models or View All1

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7Download a Collada (.dae)

model to your computer

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8 Viewer Dependant Ways to Upload to Inventory

1. Avatar Menu Tab2. Build Menu Tab3. Inventory Plus Icon

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9 Set options before uploading

1. Upload Display – Zoom in– Show included textures

2. “Upload Options” tab– Include Textures– Alter scale (64m max) for full scale

vehicles and buildings

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10 Set options before uploading

1. “Level of Detail” tab to identify the display resolutions at distances

2. “Physics” Tabs for the “physics hull” (shape of the interaction with in-world objects)

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11 Upload the model to your Inventory

• Even though this is a $0 upload cost, you will still need to:

1. Click “Calculate Weights and Fees” – Models with >64k Vertices will not

upload to the server

2. Click “Upload”

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12 Rez the mesh model in-world

• Rez the model in-world simply by dragging from Inventory to world

• Like a Sculpty Object, most prim edit features are still available (except “flexibility” and the mesh itself)