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+---- Thread: How do I use the non-legacy version of Emboss from Python-fu? (/Thread-How-do-I-use-the-non-legacy-version-of-Emboss-from-Python-fu--9136)
How do I use the non-legacy version of Emboss from Python-fu? - weanoob - 07-10-2024
(07-10-2024, 01:12 AM)weanoob Wrote: I'm writing a script that involves the use of emboss to create a specific effect. When I try
it uses the legacy emboss effect. How can I use the non-legacy version from python?Code:
pdb.plug_in_emboss
(I was told to post this in Extending the GIMP, then saw this subforum and decided to start it here instead.)
RE: How do I use the non-legacy version of Emboss from Python-fu? - Ofnuts - 07-10-2024
There is no easy way to call the GEGL tools from a script, but it can be done, see here.
RE: How do I use the non-legacy version of Emboss from Python-fu? - rich2005 - 07-10-2024
Go and have a look through Kevins post as Ofnuts link, there are other posts on the GimpChat forum.
To get you started. The GEGL syntax for emboss is here: https://gegl.org/operations/gegl-emboss.html
You can check for a valid command using Generic -> GEGL graph
[attachment=12102]
...but to include that into a python script you need a utility plugin such as the attached gegl_command.py . Your script will call that plugin. Also in the attached zip is an example for_gegl.py
Unzip, and put both in your plugins folder. The example registers in the tools menu as run_gegl I have tried in Win10 / Gimp 2.10.38 - it does work.
RE: How do I use the non-legacy version of Emboss from Python-fu? - weanoob - 08-01-2024
I figured it out. I will not let this be a "PM'd you the fix
" moment.Code:
from gimpfu import *
import pygtk
import gtk
from sys import argv, platform
from ctypes import *
def load_library (library_name):
if platform == "linux" or platform == "linux2":
library_name = library_name + '.so.0'
elif platform == "win32":
from ctypes.util import find_library
library_name = find_library (library_name + "-0")
else:
raise BaseException ("TODO")
return CDLL (library_name)
gimp = load_library('libgimp-2.0')
def use_gegl_graph(image, drawable, gegl_graph_string):
class GeglBuffer(Structure):
pass
drawable_id = drawable.ID
gegl = load_library ('libgegl-0.4')
sucess = gegl.gegl_init (None, None)
gimp.gimp_drawable_get_shadow_buffer.restype = POINTER (GeglBuffer)
gimp.gimp_drawable_get_buffer.restype = POINTER (GeglBuffer)
x = c_int (); y = c_int (); w = c_int (); h = c_int ()
non_empty,x,y,w,h = pdb.gimp_drawable_mask_intersect (drawable)
args = [b"string", c_char_p (gegl_graph_string), c_void_p ()]
if non_empty:
source = gimp.gimp_drawable_get_buffer (drawable_id)
target = gimp.gimp_drawable_get_shadow_buffer (drawable_id)
sucess = gegl.gegl_render_op (source, target, "gegl:gegl", *args)
gegl.gegl_buffer_flush (target)
gimp.gimp_drawable_merge_shadow (drawable_id, PushUndo = True)
gimp.gimp_drawable_update (drawable_id, x, y, w, h)
gimp.gimp_displays_flush ()
def emboss(timg, tdrawable, depth=4, elevation=12.5):
gegl_graph_string = "emboss azimuth=30.0 depth={0} elevation={1}".format(depth, elevation)
use_gegl_graph(timg, tdrawable, gegl_graph_string)I don't remember where I got most of this code from, probably this forum.