No comment. Sorry.
first
fourth
normal
normal:
second
third
vertices
vertices:
transformedBy:
Return a copy of the receiver with its vertices transformed by the given matrix
do:
trianglesDo:
Evaluate aBlock with triangular faces
vertexPositionsDo:
assureVertexNormals
computeFaceNormal
with:with:with:
with:with:with:with:
withAll:
renderOn:
hasTextureCoords
hasVertexColors
isDegenerate