Raul,
I think you have given the transformation from B to
A, but I need A to B. That is, if M and v are inputs to the
function, I need outputs eye, center, up, if that is
possible.
To get the result I think you are producing I have
used the following code.
glaGetFloat_jzopenglutil_ =: 3 : 'r[glGetFloatv y;r =. 16#0.1'
glaGetFloat GL_MODELVIEW_MATRIX
On Thu, 14 Dec 2006, Miller, Raul D wrote:
+ According to the first page I found documenting gluLookAt,
+ the following "lookAt" verb should do the same thing:
+
+ normalize=: ] % +/&.:*:
+ X=: (1&|[EMAIL PROTECTED] * _1&|[EMAIL PROTECTED]) - _1&|[EMAIL PROTECTED] *
1&|[EMAIL PROTECTED]
+
+ lookAt=:3 :0
+ y+9#0
+ 'eye center up'=. 3 3$y
+ f=.normalize center-eye
+ s=.f X normalize up
+ u=.s X f
+ M=.s,u,(-f),:_4{.1
+ glMultMatrix M
+ glTranslated -eye
+ )
+
+ However, I have not tested this.
+
+ --
+ Raul
+
(B=) <----------my "sig"
Brian Schott
Atlanta, GA, USA
schott DOT bee are eye eh en AT gee em ae eye el DOT com
http://schott.selfip.net/~brian/
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