2 comments below.
0) I confirmed that scaling the original vertices DOES rescale the object.
Before it did not. (Increasing the 10 in the line below reduces the
tetrahedron's size.)
vertexData=: 1&fc ,1 2 0 0 2 3 3 2 1 1 0 3{4 3$, %&10, 0&". ;._2 [ 0 : 0
1) A couple of simple changes enabled me to verify that 4 faces are colored
correctly.
R=: _180 0 0
Changing the 4th face's color helped my color defectiveness see the 4th
face. Others may not need this change.
colorData=: 1&fc ,_3]\3#"2] 0&". ;._2 [ 0 : 0
1 0 0
0 1 0
1 1 1
0 0 1
)
--
(B=)
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