poly face

poly face is inside the 3D model how reverse face polygons ? ( in other 3D programs, and Leadwerks engine ) 

To display back facing polygons, Rendering > Back Face In Gray.

For partial work, under polygon mode, select those back facing polygons, then Geometry > Flip.

To flip the whole mesh, under Mesh mode, select the mesh then Geometry > Flip.

works thanks  ,but in the next versions, I think that would be better to be the outside polygons (standard as the rest of 3d programs)

it is default to polygons facing outward. it must of got messed up somewhere along the modeling process, or if you started with a plane and had the wrong side faceing out.

you're right, sorry