A [[Data Structure]] made up of [[Triangle|Triangles]] with 3 parts: 1. [[Vertex Array]]- Array of [[Vertex]] Locations 2. [[Edge List]] - Pairs of indices into the [[Vertex Array]] 3. [[Face List]] - Triples of indices in the [[Edge List]] >[!example] Convention in $\Rn3$ >If the [[../../99 Old/03 Games/GAM200/Engine/gfx/Mesh|Mesh]] represents a solid, the triples in the [[Face List]] should have [[Triangle Orientation|Orientation Vectors]] facing outwards, typically with a [[../Math/Counter-Clockwise|Counter-Clockwise]] [[Triangle Orientation|Ordering of Vertices]]