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# ##### BEGIN GPL LICENSE BLOCK #####
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software Foundation,
# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
#
# ##### END GPL LICENSE BLOCK #####
import sys, os
import subprocess
import bpy
def generate(filename, external=True):
if external:
process = subprocess.Popen([sys.argv[0], "-b", "-noaudio", "-P", __file__, "--", filename], stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
while process.poll() is None:
process.stdout.read(1024) # empty buffer to be sure
process.stdout.read()
return _thumbname(filename)
else:
return _internal(filename)
def _thumbname(filename):
root = os.path.splitext(filename)[0]
return root + ".jpg"
def _internal(filename):
imagename = os.path.split(filename)[1]
thumbname = _thumbname(filename)
if os.path.exists(thumbname):
return thumbname
if bpy:
scene = bpy.data.scenes[0] # FIXME, this is dodgy!
scene.render.file_format = "JPEG"
scene.render.file_quality = 90
# remove existing image, if there's a leftover (otherwise open changes the name)
if imagename in bpy.data.images:
img = bpy.data.images[imagename]
bpy.data.images.remove(img)
bpy.ops.image.open(filepath=filename)
img = bpy.data.images[imagename]
img.save_render(thumbname, scene=scene)
img.user_clear()
bpy.data.images.remove(img)
try:
process = subprocess.Popen(["convert", thumbname, "-resize", "300x300", thumbname])
process.wait()
return thumbname
except Exception as exp:
print("Error while generating thumbnail")
print(exp)
return None
if __name__ == "__main__":
import bpy
try:
start = sys.argv.index("--") + 1
except ValueError:
start = 0
for filename in sys.argv[start:]:
generate(filename, external=False)
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