Re: [Plib-users] transforming a sgSphere each frame ?

[Steve B. <sjb...@ai...>]

Oliver Batchelor wrote:
> 
> for a frustum cull I need to transform a sgSphere each frame by a
> matrix  but  If I use the orthoXform then it gets changed each frame ?
> how can I avoid this ?

I think you need to make a copy of the sphere and transform that.

> the sphere::getCentre  how do I use that also It returns a pointer to
> a sgfloat   but I cant make it equal to a sgVec3   and If I make it
> equal to a float *   then use it like
> 
> variable[0]   variable[1]   variable[2]    for the x y and z it
> contains rubish ...

I'm not sure I understand your problem - but those routines are only
a couple of lines each - so "Use the Source Luke".

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