Dear Chris,

 Thank you for your big help.
btw, I've inserted your short scripts to my pov file.
I encountered error message as below:

#local _CM_ivalue = _CM_current_value + _CM_ivalue;
#undef _CM_current_value #declare _CM_current_value = _CM_ivalue;
#;   <--- error

 ....   error ) expected but ; found instead.

All of the demo files that came with AutoClck.zip ran OK, though.

Thanks,

Jong

Chris Colefax wrote:

> Jong <jjk### [at] mmewhaackr> wrote:
> > I am using Chris Colfax's animation patch. I'd like to know how I could
> >get the changing values during the animation, for example, rotated angle
> >on sequential image.
> >I really appreciate the help from POV'ers with my previous similar posting
> >a while ago. Since then, however,  I've got not much of improvement in
> >programming knowledge of POV.
> >If I change the light source angle from 0 to -180 around Z axis, I'd like
> >to get or extract the value of the angle for that specific frame, and pass
> >the number for text printing on the image.
> >For frame 1, the rotated angle value would be 0,  and some middle numbers,
> >and then the final
> >number -180.
> >Are there any specific variable name Chris might have assigned for the
> >ClockMod patch I could use?
>
> As Ingo has already replied, the Automatic Clock Modifier includes macros
> that let you declare keyframed values, which you can then output to one of
> POV-Ray's text streams, to a file, or to a text object in your scene (for a
> head-up display, or a label).  One small thing to note is that you can use a
> shortcut notation for the declaring, if you enclose the list of values in
> round brackets, i.e.:
>
> #declare ChangingAngle = (
>     From (0.0, <0,0,0>)
>     Using("",1,1,"")
>     To(1, <0,0,-180>);
>
> light_source { <-80,0, -50> color rgb<1,1,1>
>     rotate ChangingAngle
>     }
>
> // Use string functions to output ChangingAngle
>
> This is quicker and easier than rewriting your list of animated values using
> the Declare macros.

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