Maybe you get the desired effect if you take the same height-field
twice, subtracting one from the other only with a little difference in
position. I try to illustrate this by a short piece of pov source code:
difference
height_field { gif "your_t-shirt_height_field.gif" }
height_field { gif "your_t-shirt_height_field.gif" translate -y*0.1
}
/* pigment etc. as needed */
/* scale, rotate and translate as needed */
}
The result will look somewhat like the following ascii art (view with
fixed-width font):
/\ /\ /\ /\
/##\ /##\ /##\ /##\
/#/\#\ /#/\#\ /#/\#\ /#/\#\
/#/ \#\/#/ \#\/#/ \#\/#/ \#\
#/ \##/ \##/ \##/ \#
/ \/ \/ \/ \
Hope that helps.
Roy
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