MichaelJF wrote:

> here an approach to convert contour lines to hight_fields. 

neat! Two ideas:

Starting with a 0-level background will take a long time for
the high values to seep in, you can probably accelerate this by
using a mid-gray background in the first frame, or even better
use a "max" filter for the first few frames (you probably need
to use a pattern function for that).

The filter size (currently constant 15x15) could be frame
dependent so you start out smoothing over a wide area and end
up refining only the details.

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