Re: gEDA-user: gerbv-2.3.0 released

[DJ Delorie <dj@xxxxxxxxxxx>]

> I guess I'd have to do some reading of the code to see exactly what
> photo-mode is doing though.

It's pretty straight forward.  It renders each layer into a separate
pbm, then composites them into a single ppm.  The compositing loop is
around line 688 in hid/png/png.c.  There's a little extra code for
figuring top/bottom shadows, computed by ts_bs() and ts_bs_sm(), and
for texturing the copper (the call to random()).


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