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Hi!
When I rotate a pov ray object like a the box, POVRay will rotate it about
it's center point. However, if I make a prism, it rotates the prism around
the first point created. How can I make a prism object and if I apply the
rotate parameter have it rotate around the center of the prism object?
Anybody know a work around for this? Thanks,
Arie
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Arie L. Stavchansky <ari### [at] bellatlantic net> wrote:
: When I rotate a pov ray object like a the box, POVRay will rotate it about
: it's center point.
Nope, it rotates it around <0,0,0>.
: However, if I make a prism, it rotates the prism around
: the first point created.
If the first point is located at <0,0,0> then that's true. If it's somewhere
else, then it isn't (is it will always rotate around <0,0,0>).
: How can I make a prism object and if I apply the
: rotate parameter have it rotate around the center of the prism object?
What is the center of a prism?
--
#macro N(D,I)#if(I<6)cylinder{M()#local D[I]=div(D[I],104);M().5,2pigment{
rgb M()}}N(D,(D[I]>99?I:I+1))#end#end#macro M()<mod(D[I],13)-6,mod(div(D[I
],13),8)-3,10>#end blob{N(array[6]{11117333955,
7382340,3358,3900569407,970,4254934330},0)}// - Warp -
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"Arie L. Stavchansky" wrote:
> When I rotate a pov ray object like a the box, POVRay will rotate it about
> it's center point. However, if I make a prism, it rotates the prism around
> the first point created. How can I make a prism object and if I apply the
> rotate parameter have it rotate around the center of the prism object?
>
> Anybody know a work around for this? Thanks,
If you're using 3.5, include the transforms.inc file and then use the
Center_Trans macro to center your object (actually its bounding box so it may
not look like you want it to look) around the origin.
#include "transforms.inc"
#declare MyPrism=prism{...}
object {MyPrism
Center_Trans(MyPrism, x+y+z)
}
G.
--
**********************
http://www.oyonale.com
**********************
Graphic experiments
Pov-ray gallery
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