[x3d-public] standard ambiguities

[simon place]

sorry but here's another issue.


suppose you texture a square quad (a face in an IFS) from texture
coordinates that form a 'kite'
http://en.wikipedia.org/wiki/Kite_(geometry) shape in the texture,
then does the colour needed for the centre of the square face come
from the pixel in the texture mid-way between the two wing tips or
mid-way between the head and the tail?

see discussion on comp.lang.vrml group;
https://groups.google.com/forum/?fromgroups#!searchin/comp.lang.vrml/ambiguous$20texturing$20of$20non-triangles$3F/comp.lang.vrml/-0LIizFojDY/D3ZjQNnGjnEJ

it has an example and results from various browsers of one way to
force visibility of the issue.