On 8/15/21 4:09 AM, jr wrote:
> love this "stirring paint" effect.
I inherited an old leather bound book publish sometime in the mid to
late 1800s; since given it to my daughter. In trying to learn more about
the book, I corresponded for a time with a librarian at university which
had a similar book. On the inside covers there were these wonderful
color swirling patterns and I asked her how they were done.
They were made by laying down paint line in lines of differing colors
floating atop water. A stick/or sticks would be inserted in the paint
and spun. The blank paper would then be lowered onto the floating paint
pattern and, presto, color swirls. Cool technique - sans computers -
though the basics are much the same I suppose.
FWIW. I took a couple day run at your '-window id' feature idea and failed.
Learned quite a bit about X - enough to address two unix display issues
Jerome uncovered some years back with all the preview displays. The
approach tried, I borrowed from 'feh' which just added a window id
feature. I think a more invasive method is likely necessary for POV-Ray,
but, maybe I'm still clueless.
Also, in looking at the tcl/tk code supporting such 'adopted' windows, I
wonder, still, about getting all the event masks and handling lined up
so nothing is tangled that should not be - except, you know, what should be.
Maybe I'll take a run at it again down the road. I have an interest in a
simple generic interface for things like modeling splines on the fly
using POV-Ray as for both modeling and display - as you know.
I played some with the xcb alternative to xlib too. Why? Well, I
strongly suspect that threads xlib fix we came up with isn't going to
fly with a -window id / -into feature.
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