On Wed, 17 Oct 2001 17:22:46 +0100, "Keith Hull"
<kei### [at] totalisecouk> wrote:

>I'm currently in the process of writing a Povray to Moray Parser

Wow!

>most of the objects can be imported and csg's, 

WOW!

>I have a few things to sort out like textures and declare statements. 
>However my biggest problem is how I convert Povray object vectors to 
>Moray Scale/Rotate/Translate vectors e.g. for a cone...

With the proper matrix you can define any affine transformation.
However, in order to define a local coordinate system on the cone, you
need more than just two points. In general, you need 4 points, but you
can pass with three (both apex points and another point on the
circumference on the larger base) if you know it's a straight cone.

In any case, once you have the matrix, it *might* be possible to
convert it to a triple of scale/rotate/translate matrices by matrix
division (inverse multiplication, that is). How, I don't know, but
I'll think about it tomorrow, when I've had some sleep.

Maybe I'm totally rambling here... our Neo would know best :)


Peter Popov ICQ : 15002700
Personal e-mail : pet### [at] vipbg
TAG      e-mail : pet### [at] tagpovrayorg

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