scaling of flat primitives
2014-06-21, 23:11 (This post was last modified: 2014-06-23, 8:04 by Philippe Hurbain.)
2014-06-21, 23:11 (This post was last modified: 2014-06-23, 8:04 by Philippe Hurbain.)
Hallo,
in http://www.ldraw.org/library/primref/ the following is mentioned: "To avoid matrix arithmetic problems in some renderers, the third dimension ({y} in the default orientation) must be given a scaling factor of 1."
Is it that strict or is a -1 allowed as well?
The reason for the question is that I'm still working on 11767. If I fix the BFC and I mirror or rotate a primitive I get a -1 as scaling factor for y. Is it legal or is it prefered to have a 0 BFC INVERTNEXT statement for many lines of code?
regards, Ingolf
in http://www.ldraw.org/library/primref/ the following is mentioned: "To avoid matrix arithmetic problems in some renderers, the third dimension ({y} in the default orientation) must be given a scaling factor of 1."
Is it that strict or is a -1 allowed as well?
The reason for the question is that I'm still working on 11767. If I fix the BFC and I mirror or rotate a primitive I get a -1 as scaling factor for y. Is it legal or is it prefered to have a 0 BFC INVERTNEXT statement for many lines of code?
regards, Ingolf