I <chr### [at] tagpovrayorg> wrote:
> : +ER1 seems to be interpreted as 100%

Warp <war### [at] tagpovrayorg> wrote:
>   Could this be a place for a bug report?

The documentation explicitly states that row/column values <= 1 will be
interpreted as a percentage of the image, so the behaviour is correct from
that point of view.  This does mean, though, that you can't render the first
line only without resorting to hacks like specifying +ER1.1 or +ER0.

However, the behaviour of rendering the entire image when +SR1 +ER1 is
specified is probably buggy - by the documentation, this should render the
last row of the image, or possibly the first, but not all.

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