what's nonmanifold?
what is it and what's the use of knowing it? does it affect my modeling or texturing or whatever? if so how?
really sorry... i just dont get my book lol... any way thx for replying |
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Non manifold geometry is when the polygons don't form a continuous surface. - and thus can't be unfolded into a continuous piece. This is relavent when UV mapping and performing certain operations that don't work on non-manifold geometry (for example, boolean operations). Also, some real time engines and other modeling packages don't support non manifold geometry.
Usualy non-manifold means: *three or more faces share an edge (like when you extrude an edge of a cube) *Two or more faces share a single vertex but no edge ( like when you merge the corner vertexe's of two planes together) *adjacent faces have opposite normals (like when you flip the normal of a side of a cube) Attached is an image to help explain. Hope this helps! |
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