Gray Iso-Layers fr.alexp.grayisolayers 16 true 1.0 true 800 0.02 0.4 true 4294967295 0.2 4278190335 255 true images/parameters_en.png Select one or more bitmap images (imported photo, height map, blurred noise), then run the extension. Colors are read as grays and transparency as white. The image is smoothed, then split into the requested number of gray levels with evenly spaced thresholds. Each level becomes one closed path that follows the edge of its flat area, like a contour line on a map. Each gray level goes into its own layer, named Board no. 1, Board no. 2... from the back to the front, added above the image: as many new layers as gray levels. The boards are meant to be cut and stacked: board no. 1 covers the whole image and each following board is smaller and lies in front of the previous one, lightest (or darkest) in front. In each layer, the cut outline of the board is drawn in the cut color (red), and the outline of the next board is carried over in the marking color (black), to show where to glue it. With "Its own gray only", a board holds the flat area of its gray alone: the boards sit side by side without overlapping and carry no marking. Several selected images share the same layers. For laser cutting, choose no fill: only the cut and marking strokes remain. For line art only, choose a white single-color fill, or no fill, with a black stroke and no marking. If the outlines are too busy, raise the smoothing or the smallest island; if they look angular, raise the smoothing or the simplification. If a face is no longer recognizable, lower the smoothing and keep "Preserve edges" checked.

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