Mesh/Technical Overview

Mesh

• Basics

• Advanced

• Project Information

• Technical Information
  • Mesh asset format
  • Avatar Shape XML Format
  • Calculating land impact
    • Download weight
    • Server weight
    • Physics weight
  • Display weight
  • Mesh technical FAQ
  • Why "UUID Flipping" is bad
• Mesh creation tools

Fact Sheet
Question	Answer
Faces	65536 triangles per LOD for each Prim
Textures per Prim	up to 8 texture faces per Prim
Textures per (model-) face	1
Materials per Prim	Materials are currently synonym for texture faces
Objects per Upload	One Object containing an arbitrary amount of Mesh Prims. You will get a Linkset when rezzing the upload. You can separate the Prims within the linkset if you like (just like with any other Linkset). Note that a Mesh Prim can consist of multiple unconnected "sub" meshes. Since a Mesh Prim is the smallest rezzable entity, such a mesh prim is an equivalent to a fractional sculpty from the visual impression, but has a cleanly defined Model. It is up to your tool how you distinguish between separate meshes in ONE object or separate Objects.
Alpha-textures	yes, but take care of the Alpha Sorting issue returning back on meshes.In general alpha textures currently create a mess. However there are some exceptions where they work well.
Normal-textures	Not in first release
Specularity-textures	Not in first release
Environmap-textures	Not in first release
Custom Pivot	(Change the center of a mesh): Not supported in first release
Mesh without physics	not supported (every Object needs a physics definition). Best approach: Use simple physics meshes (A single trianlge will do when you are sure that your mesh realy never needs physics)

Technical overview should include:

• Summary of how mesh works
• Summary of toolchain
• Differences between existing prim system and mesh