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Blender notes for porting to Second Life and OpenSim

Turn on Backface Culling

SL only supports one-sided meshes.  Blender defaults to two-sided meshes.  If you are not careful, you will end up with what appear to be holes in your SL upload.

Hover above the 3-D window and type N, or select View->Properties from the menu

Expand the Display Section.

Display Section

Unselect Relationship Lines to get rid of clutter.

Now click Backface Culling so that faces will be one-sided.   

Backface Culling 

Click Backface Culling on and off rapidly and watch your model. If you see any flashing, you some some normals facing the wrong way. These will appear as holes in Second Life or Opensim.    Flip them by selecting Edit Mode, select each face or a group of them, then click Mesh->Normals->Flip Normals


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