From: Tom Melly
Subject: How do I find a matrix
Date: 17 Feb 2003 06:44:51
Message: <3e50cb33$1@news.povray.org>
Is there any way to return the matrix for a particular transformation?
--
#macro A(V,B,C,R)#while(B-256)#if(V-128/B>=0)sphere{0,.5translate<C-4R-1,9>
pigment{rgb<1-C/8R/2C/8>}}#local V=V-128/B;#end#local B=B*2;#local C=C+1;#
end#end A(234,1,0,2)A(85,1,0,1)A(81,1,0,0)light_source{-5 1}//Tom Melly
> Is there any way to return the matrix for a particular transformation?
Let T(v) be the result of applying the transformation to v.
Then the matrix of T is
T(x)-T(0)
T(y)-T(0)
T(z)-T(0)
T(0)
where each line should be read as a horizontal 3D-vector.
At least that is how I read 6.3.1.4. I have never used any of this.
--
merge{#local i=-11;#while(i<11)#local
i=i+.1;sphere{<i*(i*i*(.05-i*i*(4e-7*i*i+3e-4))-3)10*sin(i)30>.5}#end
pigment{color.6}interior{media{emission x}}hollow}// Mark Weyer
On Mon, 17 Feb 2003 11:44:51 -0000, "Tom Melly" <tom### [at] tomandlucouk> wrote:
> Is there any way to return the matrix for a particular transformation?
http://news.povray.org/cd3outglhk60i0mk3scelr52p9cu5nv8uo%404ax.com
ABX
From: John VanSickle
Subject: Re: How do I find a matrix
Date: 18 Feb 2003 16:14:05
Message: <3E52A21D.86D7A82D@hotmail.com>
Tom Melly wrote:
> > Is there any way to return the matrix for a particular transformation?
http://enphilistor.users4.50megs.com/matrix.htm
Regards,
John
co