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Unformatted text preview: triangle mesh: 3F 2E under these assumptions: 2 / 2 2 / 2 2 / 3 2 F V F V F F V F E V + = + 36 Polygonal Meshes: Shared Vertex Data Structure (cont) what about the number of normal vectors? impossible to say in general, but assume N V the storage requirements are: this is half the storage requirement of the first simple data structure F F F F V F V V F N V 9 6 3 6 6 6 3 3 6 3 3 = + + = + + + + 37 Polygonal Meshes: Shared Vertex Data Structure Example S x , S y , S z S R x , R y , R z R Q x , Q y , Q z Q P x , P y , P z P coordinates vertex c x , c y , c z c d x , d y , d z d b x , b y , b z b a x , a y , a z a coordinates normal d, d, d Q, P, S 3 c, c, c R, S, P 2 b, b, b R, Q, S 1 a, a, a P, Q, R normal vertex face...
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 Winter '12
 BURTON

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