def start_material_thumbnailer(self=None, json_args=None, props=None, wait=False, add_bg_process=True):
'''
Parameters
----------
self
json_args - all arguments:
props - blenderkit upload props with thumbnail settings, to communicate back, if not present, not used.
wait - wait for the rendering to finish
Returns
-------
'''
if props:
props.is_generating_thumbnail = True
props.thumbnail_generating_state = 'starting blender instance'
binary_path = bpy.app.binary_path
script_path = os.path.dirname(os.path.realpath(__file__))
tfpath = paths.get_material_thumbnailer_filepath()
datafile = os.path.join(json_args['tempdir'], BLENDERKIT_EXPORT_DATA_FILE)
try:
with open(datafile, 'w', encoding='utf-8') as s:
json.dump(json_args, s, ensure_ascii=False, indent=4)
proc = subprocess.Popen([
binary_path,
"--background",
"-noaudio",
tfpath,
"--python", os.path.join(script_path, "autothumb_material_bg.py"),
"--", datafile,
], bufsize=1, stdout=subprocess.PIPE, stdin=subprocess.PIPE, creationflags=utils.get_process_flags())
eval_path_computing = "bpy.data.materials['%s'].blenderkit.is_generating_thumbnail" % json_args['asset_name']
eval_path_state = "bpy.data.materials['%s'].blenderkit.thumbnail_generating_state" % json_args['asset_name']
eval_path = "bpy.data.materials['%s']" % json_args['asset_name']
bg_blender.add_bg_process(name=f"{json_args['asset_name']} thumbnailer", eval_path_computing=eval_path_computing,
eval_path_state=eval_path_state,
eval_path=eval_path, process_type='THUMBNAILER', process=proc)
if props:
props.thumbnail_generating_state = 'Saving .blend file'
if wait:
while proc.poll() is None:
stdout_data, stderr_data = proc.communicate()
print(stdout_data)
except Exception as e:
if self:
self.report({'WARNING'}, "Error while packing file: %s" % str(e))
else:
print(e)
return {'FINISHED'}
def start_material_thumbnailer(self, context):
# Prepare to save the file
mat = bpy.context.active_object.active_material
mat.blenderkit.is_generating_thumbnail = True
mat.blenderkit.thumbnail_generating_state = 'starting blender instance'
binary_path = bpy.app.binary_path
script_path = os.path.dirname(os.path.realpath(__file__))
basename, ext = os.path.splitext(bpy.data.filepath)
if not basename:
basename = os.path.join(basename, "temp")
if not ext:
ext = ".blend"
asset_name = mat.name
tempdir = tempfile.mkdtemp()
file_dir = os.path.dirname(bpy.data.filepath)
thumb_path = os.path.join(file_dir, asset_name)
rel_thumb_path = os.path.join('//', mat.name)
i = 0
while os.path.isfile(thumb_path + '.png'):
thumb_path = os.path.join(file_dir, mat.name + '_' + str(i).zfill(4))
rel_thumb_path = os.path.join('//', mat.name + '_' + str(i).zfill(4))
i += 1
filepath = os.path.join(tempdir, "material_thumbnailer_cycles" + ext)
tfpath = paths.get_material_thumbnailer_filepath()
datafile = os.path.join(tempdir, BLENDERKIT_EXPORT_DATA_FILE)
try:
# save a copy of actual scene but don't interfere with the users models
bpy.ops.wm.save_as_mainfile(filepath=filepath,
compress=False,
copy=True)
with open(datafile, 'w') as s:
bkit = mat.blenderkit
json.dump(
{
"type": "material",
"material": mat.name,
"thumbnail_type": bkit.thumbnail_generator_type,
"thumbnail_scale": bkit.thumbnail_scale,
"thumbnail_background": bkit.thumbnail_background,
"thumbnail_background_lightness":
bkit.thumbnail_background_lightness,
"thumbnail_resolution": bkit.thumbnail_resolution,
"thumbnail_samples": bkit.thumbnail_samples,
"thumbnail_denoising": bkit.thumbnail_denoising,
"adaptive_subdivision": bkit.adaptive_subdivision,
"texture_size_meters": bkit.texture_size_meters,
}, s)
proc = subprocess.Popen([
binary_path, "--background", "-noaudio", tfpath, "--python",
os.path.join(script_path, "autothumb_material_bg.py"), "--",
datafile, filepath, thumb_path, tempdir
],
bufsize=1,
stdout=subprocess.PIPE,
stdin=subprocess.PIPE,
creationflags=utils.get_process_flags())
eval_path_computing = "bpy.data.materials['%s'].blenderkit.is_generating_thumbnail" % mat.name
eval_path_state = "bpy.data.materials['%s'].blenderkit.thumbnail_generating_state" % mat.name
eval_path = "bpy.data.materials['%s']" % mat.name
bg_blender.add_bg_process(eval_path_computing=eval_path_computing,
eval_path_state=eval_path_state,
eval_path=eval_path,
process_type='THUMBNAILER',
process=proc)
mat.blenderkit.thumbnail = rel_thumb_path + '.png'
mat.blenderkit.thumbnail_generating_state = 'Saving .blend file'
except Exception as e:
self.report({'WARNING'}, "Error while packing file: %s" % str(e))
return {'FINISHED'}
def start_material_thumbnailer(self, context):
# Prepare to save the file
mat = bpy.context.active_object.active_material
mat.blenderkit.is_generating_thumbnail = True
mat.blenderkit.thumbnail_generating_state = 'starting blender instance'
binary_path = bpy.app.binary_path
script_path = os.path.dirname(os.path.realpath(__file__))
basename, ext = os.path.splitext(bpy.data.filepath)
if not basename:
basename = os.path.join(basename, "temp")
if not ext:
ext = ".blend"
asset_name = mat.name
tempdir = tempfile.mkdtemp()
file_dir = os.path.dirname(bpy.data.filepath)
thumb_path = os.path.join(file_dir, asset_name)
rel_thumb_path = os.path.join('//', mat.name)
i = 0
while os.path.isfile(thumb_path + '.png'):
thumb_path = os.path.join(file_dir, mat.name + '_' + str(i).zfill(4))
rel_thumb_path = os.path.join('//', mat.name + '_' + str(i).zfill(4))
i += 1
filepath = os.path.join(tempdir, "material_thumbnailer_cycles" + ext)
tfpath = paths.get_material_thumbnailer_filepath()
datafile = os.path.join(tempdir, BLENDERKIT_EXPORT_DATA_FILE)
try:
# save a copy of actual scene but don't interfere with the users models
bpy.ops.wm.save_as_mainfile(filepath=filepath, compress=False, copy=True)
with open(datafile, 'w') as s:
bkit = mat.blenderkit
json.dump({
"type": "material",
"material": mat.name,
"thumbnail_type": bkit.thumbnail_generator_type,
"thumbnail_scale": bkit.thumbnail_scale,
"thumbnail_background": bkit.thumbnail_background,
"thumbnail_background_lightness": bkit.thumbnail_background_lightness,
"thumbnail_samples": bkit.thumbnail_samples,
"thumbnail_denoising": bkit.thumbnail_denoising,
"adaptive_subdivision": bkit.adaptive_subdivision,
"texture_size_meters": bkit.texture_size_meters,
}, s)
flags = BELOW_NORMAL_PRIORITY_CLASS
if sys.platform != 'win32': # TODO test this on windows
flags = 0
proc = subprocess.Popen([
binary_path,
"--background",
"-noaudio",
tfpath,
"--python", os.path.join(script_path, "autothumb_material_bg.py"),
"--", datafile, filepath, thumb_path, tempdir
], bufsize=1, stdout=subprocess.PIPE, stdin=subprocess.PIPE, creationflags=flags)
eval_path_computing = "bpy.data.materials['%s'].blenderkit.is_generating_thumbnail" % mat.name
eval_path_state = "bpy.data.materials['%s'].blenderkit.thumbnail_generating_state" % mat.name
eval_path = "bpy.data.materials['%s']" % mat.name
bg_blender.add_bg_process(eval_path_computing=eval_path_computing, eval_path_state=eval_path_state,
eval_path=eval_path, process_type='THUMBNAILER', process=proc)
mat.blenderkit.thumbnail = rel_thumb_path + '.png'
mat.blenderkit.thumbnail_generating_state = 'Saving .blend file'
except Exception as e:
self.report({'WARNING'}, "Error while packing file: %s" % str(e))
return {'FINISHED'}