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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
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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.
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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
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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)