The make_frame() function only accepts single timepoints / frame-numbers

[Former user]

The make_frame() function can be used to create single-frame output, also when the project creates a simulation.

However, only single frames are currently possible.

Proposed solution would change the use. For single frame:

`povray.make_frame(10, scene, time=False)`

For multiple frames:

`povray.make_frame([10, 11, 12, 13, 14, 15], scene, time=False)`

or:

`povray.make_frame(range(10, 15), scene, time=False)`

[Marcel Kempenaar]

The make_frame function has been replaced by the render_scene_to_png function which now accepts multiple values.