Regarding rendering of parts

Regarding rendering of parts
I am trying to write a renderer and so trying to understand the document
My first question is does a reverse matrix (determinant < 0) perform a mirroring on the part as I have seen in some places or just changes the winding as the document suggests. I wish the pseudocode at the bottom of the document also included the negative determinant part of the drawing process.

Also regarding rendering. If I open the subpart box5.dat in ldview the backfacing polygons are not rendered. But If I create a file sample.dat and in it I put the line "1 16 0 0 0 1 0 0 0 1 0 0 0 1 box5.dat" and open sample.dat in ldview then the backfacing polygons are rendered. From reading the above document I do not understand why that is the case.

Thank you for any help.
-- Saki
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Regarding rendering of parts - by Athanasios Gaitatzes - 2013-04-08, 13:39

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