In article <39f27d6f@news.povray.org>, "Tony[B]" 
<ben### [at] panamac-comnet> wrote:

> I have a spline. I want to move an object along that spline, and have it
> motion-blur as it moves. It seems that I can only feed the spline "clock",
> or else the blur doesn't show up. I want to control it with another value,
> that doesn't increase constantly like clock, say with autoclck.mcr, but it
> doesn't blur! What can I do?

As long as the value you give to the spline is calculated using the 
"clock" value within the motion_blur block, it should work. I don't know 
how the AutoClock macros are doing things, but I don't see how they 
wouldn't work.
For example: this will work:
motion_blur {
    #declare Val = sqr(sin(clock));
    object {MyObject translate MySpline(Val)}
}

But this will not blur with movement along the spline:
#declare Val = sqr(sin(clock));
motion_blur {
    object {MyObject translate MySpline(Val)}
}

-- 
Christopher James Huff
Personal: chr### [at] maccom, http://homepage.mac.com/chrishuff/
TAG: chr### [at] tagpovrayorg, http://tag.povray.org/

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