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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 #####
from blenderkit import utils, append_link, bg_blender
import sys, json, math
from pathlib import Path
import bpy
import mathutils
BLENDERKIT_EXPORT_TEMP_DIR = sys.argv[-1]
BLENDERKIT_THUMBNAIL_PATH = sys.argv[-2]
BLENDERKIT_EXPORT_FILE_INPUT = sys.argv[-3]
BLENDERKIT_EXPORT_DATA = sys.argv[-4]
def get_obnames():
with open(BLENDERKIT_EXPORT_DATA, 'r') as s:
data = json.load(s)
obnames = eval(data['models'])
return obnames
def center_obs_for_thumbnail(obs):
s = bpy.context.scene
# obs = bpy.context.selected_objects
parent = obs[0]
while parent.parent != None:
parent = parent.parent
# reset parent rotation, so we see how it really snaps.
parent.rotation_euler = (0, 0, 0)
bpy.context.view_layer.update()
minx, miny, minz, maxx, maxy, maxz = utils.get_bounds_worldspace(obs)
cx = (maxx - minx) / 2 + minx
cy = (maxy - miny) / 2 + miny
for ob in s.collection.objects:
ob.select_set(False)
bpy.context.view_layer.objects.active = parent
parent.location += mathutils.Vector((-cx, -cy, -minz))
camZ = s.camera.parent.parent
camZ.location.z = (maxz - minz) / 2
dx = (maxx - minx)
dy = (maxy - miny)
dz = (maxz - minz)
r = math.sqrt(dx * dx + dy * dy + dz * dz)
scaler = bpy.context.view_layer.objects['scaler']
scaler.scale = (r, r, r)
coef = .7
r *= coef
camZ.scale = (r, r, r)
bpy.context.view_layer.update()
def render_thumbnails():
bpy.ops.render.render(write_still=True, animation=False)
if __name__ == "__main__":
try:
with open(BLENDERKIT_EXPORT_DATA, 'r') as s:
data = json.load(s)
user_preferences = bpy.context.preferences.addons['blenderkit'].preferences
bg_blender.progress('preparing thumbnail scene')
obnames = get_obnames()
main_object, allobs = append_link.append_objects(file_name=BLENDERKIT_EXPORT_FILE_INPUT,
obnames=obnames,
link=True)
bpy.context.view_layer.update()
camdict = {
'GROUND': 'camera ground',
'WALL': 'camera wall',
'CEILING': 'camera ceiling',
'FLOAT': 'camera float'
}
bpy.context.scene.camera = bpy.data.objects[camdict[data['thumbnail_snap_to']]]
center_obs_for_thumbnail(allobs)
bpy.context.scene.render.filepath = BLENDERKIT_THUMBNAIL_PATH
if user_preferences.thumbnail_use_gpu:
bpy.context.scene.cycles.device = 'GPU'
fdict = {
'DEFAULT': 1,
'FRONT': 2,
'SIDE': 3,
'TOP': 4,
}
s = bpy.context.scene
s.frame_set(fdict[data['thumbnail_angle']])
snapdict = {
'GROUND': 'Ground',
'WALL': 'Wall',
'CEILING': 'Ceiling',
'FLOAT': 'Float'
}
collection = bpy.context.scene.collection.children[snapdict[data['thumbnail_snap_to']]]
collection.hide_viewport = False
collection.hide_render = False
collection.hide_select = False
main_object.rotation_euler = (0, 0, 0)
bpy.data.materials['bkit background'].node_tree.nodes['Value'].outputs['Value'].default_value \
= data['thumbnail_background_lightness']
s.cycles.samples = data['thumbnail_samples']
bpy.context.view_layer.cycles.use_denoising = data['thumbnail_denoising']
bpy.context.view_layer.update()
# import blender's HDR here
# hdr_path = Path('datafiles/studiolights/world/interior.exr')
# bpath = Path(bpy.utils.resource_path('LOCAL'))
# ipath = bpath / hdr_path
# ipath = str(ipath)
# this stuff is for mac and possibly linux. For blender // means relative path.
# for Mac, // means start of absolute path
# if ipath.startswith('//'):
# ipath = ipath[1:]
#
# img = bpy.data.images['interior.exr']
# img.filepath = ipath
# img.reload()
bpy.context.scene.render.resolution_x = int(data['thumbnail_resolution'])
bpy.context.scene.render.resolution_y = int(data['thumbnail_resolution'])
bg_blender.progress('rendering thumbnail')
render_thumbnails()
fpath = BLENDERKIT_THUMBNAIL_PATH + '0001.jpg'
bg_blender.progress('background autothumbnailer finished successfully')
except:
import traceback
traceback.print_exc()
sys.exit(1)
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