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#
# Copyright 2011-2013 Blender Foundation
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
# <pep8 compliant>
def _is_using_buggy_driver():
import bgl
# We need to be conservative here because in multi-GPU systems display card
# might be quite old, but others one might be just good.
#
# So We shouldn't disable possible good dedicated cards just because display
# card seems weak. And instead we only blacklist configurations which are
# proven to cause problems.
if bgl.glGetString(bgl.GL_VENDOR) == "ATI Technologies Inc.":
import re
version = bgl.glGetString(bgl.GL_VERSION)
if version.endswith("Compatibility Profile Context"):
# Old HD 4xxx and 5xxx series drivers did not have driver version
# in the version string, but those cards do not quite work and
# causing crashes.
return True
regex = re.compile(".*Compatibility Profile Context ([0-9]+(\.[0-9]+)+)$")
if not regex.match(version):
# Skip cards like FireGL
return False
version = regex.sub("\\1", version).split('.')
return int(version[0]) == 8
return False
def _workaround_buggy_drivers():
if _is_using_buggy_driver():
import _cycles
if hasattr(_cycles, "opencl_disable"):
print("Cycles: OpenGL driver known to be buggy, disabling OpenCL platform.")
_cycles.opencl_disable()
def _configure_argument_parser():
import argparse
# No help because it conflicts with general Python scripts argument parsing
parser = argparse.ArgumentParser(description="Cycles Addon argument parser",
add_help=False)
parser.add_argument("--cycles-resumable-num-chunks",
help="Number of chunks to split sample range into",
default=None)
parser.add_argument("--cycles-resumable-current-chunk",
help="Current chunk of samples range to render",
default=None)
parser.add_argument("--cycles-resumable-start-chunk",
help="Start chunk to render",
default=None)
parser.add_argument("--cycles-resumable-end-chunk",
help="End chunk to render",
default=None)
parser.add_argument("--cycles-print-stats",
help="Print rendering statistics to stderr",
action='store_true')
return parser
def _parse_command_line():
import sys
argv = sys.argv
if "--" not in argv:
return
parser = _configure_argument_parser()
args, unknown = parser.parse_known_args(argv[argv.index("--") + 1:])
if args.cycles_resumable_num_chunks is not None:
if args.cycles_resumable_current_chunk is not None:
import _cycles
_cycles.set_resumable_chunk(
int(args.cycles_resumable_num_chunks),
int(args.cycles_resumable_current_chunk),
)
elif args.cycles_resumable_start_chunk is not None and \
args.cycles_resumable_end_chunk:
import _cycles
_cycles.set_resumable_chunk_range(
int(args.cycles_resumable_num_chunks),
int(args.cycles_resumable_start_chunk),
int(args.cycles_resumable_end_chunk),
)
if args.cycles_print_stats:
import _cycles
_cycles.enable_print_stats()
def init():
import bpy
import _cycles
import os.path
# Workaround possibly buggy legacy drivers which crashes on the OpenCL
# device enumeration.
#
# This checks are not really correct because they might still fail
# in the case of multiple GPUs. However, currently buggy drivers
# are really old and likely to be used in single GPU systems only
# anyway.
#
# Can't do it in the background mode, so we hope OpenCL is no enabled
# in the user preferences.
if not bpy.app.background:
_workaround_buggy_drivers()
path = os.path.dirname(__file__)
user_path = os.path.dirname(os.path.abspath(bpy.utils.user_resource('CONFIG', '')))
_cycles.init(path, user_path, bpy.app.background)
_parse_command_line()
def exit():
import _cycles
_cycles.exit()
def create(engine, data, scene, region=None, v3d=None, rv3d=None, preview_osl=False):
import bpy
import _cycles
data = data.as_pointer()
userpref = bpy.context.user_preferences.as_pointer()
scene = scene.as_pointer()
if region:
region = region.as_pointer()
if v3d:
v3d = v3d.as_pointer()
if rv3d:
rv3d = rv3d.as_pointer()
if bpy.app.debug_value == 256:
_cycles.debug_flags_update(scene)
else:
_cycles.debug_flags_reset()
engine.session = _cycles.create(engine.as_pointer(), userpref, data, scene, region, v3d, rv3d, preview_osl)
def free(engine):
if hasattr(engine, "session"):
if engine.session:
import _cycles
_cycles.free(engine.session)
del engine.session
def render(engine):
import _cycles
if hasattr(engine, "session"):
_cycles.render(engine.session)
def bake(engine, obj, pass_type, pass_filter, object_id, pixel_array, num_pixels, depth, result):
import _cycles
session = getattr(engine, "session", None)
if session is not None:
_cycles.bake(engine.session, obj.as_pointer(), pass_type, pass_filter, object_id, pixel_array.as_pointer(), num_pixels, depth, result.as_pointer())
def reset(engine, data, scene):
import _cycles
data = data.as_pointer()
scene = scene.as_pointer()
_cycles.reset(engine.session, data, scene)
def update(engine, data, scene):
import _cycles
_cycles.sync(engine.session)
def draw(engine, region, v3d, rv3d):
import _cycles
v3d = v3d.as_pointer()
rv3d = rv3d.as_pointer()
# draw render image
_cycles.draw(engine.session, v3d, rv3d)
def available_devices():
import _cycles
return _cycles.available_devices()
def with_osl():
import _cycles
return _cycles.with_osl
def with_network():
import _cycles
return _cycles.with_network
def system_info():
import _cycles
return _cycles.system_info()
def register_passes(engine, scene, srl):
engine.register_pass(scene, srl, "Combined", 4, "RGBA", 'COLOR')
if srl.use_pass_z: engine.register_pass(scene, srl, "Depth", 1, "Z", 'VALUE')
if srl.use_pass_mist: engine.register_pass(scene, srl, "Mist", 1, "Z", 'VALUE')
if srl.use_pass_normal: engine.register_pass(scene, srl, "Normal", 3, "XYZ", 'VECTOR')
if srl.use_pass_vector: engine.register_pass(scene, srl, "Vector", 4, "XYZW", 'VECTOR')
if srl.use_pass_uv: engine.register_pass(scene, srl, "UV", 3, "UVA", 'VECTOR')
if srl.use_pass_object_index: engine.register_pass(scene, srl, "IndexOB", 1, "X", 'VALUE')
if srl.use_pass_material_index: engine.register_pass(scene, srl, "IndexMA", 1, "X", 'VALUE')
if srl.use_pass_shadow: engine.register_pass(scene, srl, "Shadow", 3, "RGB", 'COLOR')
if srl.use_pass_ambient_occlusion: engine.register_pass(scene, srl, "AO", 3, "RGB", 'COLOR')
if srl.use_pass_diffuse_direct: engine.register_pass(scene, srl, "DiffDir", 3, "RGB", 'COLOR')
if srl.use_pass_diffuse_indirect: engine.register_pass(scene, srl, "DiffInd", 3, "RGB", 'COLOR')
if srl.use_pass_diffuse_color: engine.register_pass(scene, srl, "DiffCol", 3, "RGB", 'COLOR')
if srl.use_pass_glossy_direct: engine.register_pass(scene, srl, "GlossDir", 3, "RGB", 'COLOR')
if srl.use_pass_glossy_indirect: engine.register_pass(scene, srl, "GlossInd", 3, "RGB", 'COLOR')
if srl.use_pass_glossy_color: engine.register_pass(scene, srl, "GlossCol", 3, "RGB", 'COLOR')
if srl.use_pass_transmission_direct: engine.register_pass(scene, srl, "TransDir", 3, "RGB", 'COLOR')
if srl.use_pass_transmission_indirect: engine.register_pass(scene, srl, "TransInd", 3, "RGB", 'COLOR')
if srl.use_pass_transmission_color: engine.register_pass(scene, srl, "TransCol", 3, "RGB", 'COLOR')
if srl.use_pass_subsurface_direct: engine.register_pass(scene, srl, "SubsurfaceDir", 3, "RGB", 'COLOR')
if srl.use_pass_subsurface_indirect: engine.register_pass(scene, srl, "SubsurfaceInd", 3, "RGB", 'COLOR')
if srl.use_pass_subsurface_color: engine.register_pass(scene, srl, "SubsurfaceCol", 3, "RGB", 'COLOR')
if srl.use_pass_emit: engine.register_pass(scene, srl, "Emit", 3, "RGB", 'COLOR')
if srl.use_pass_environment: engine.register_pass(scene, srl, "Env", 3, "RGB", 'COLOR')
crl = srl.cycles
if crl.pass_debug_render_time: engine.register_pass(scene, srl, "Debug Render Time", 1, "X", 'VALUE')
if crl.pass_debug_bvh_traversed_nodes: engine.register_pass(scene, srl, "Debug BVH Traversed Nodes", 1, "X", 'VALUE')
if crl.pass_debug_bvh_traversed_instances: engine.register_pass(scene, srl, "Debug BVH Traversed Instances", 1, "X", 'VALUE')
if crl.pass_debug_bvh_intersections: engine.register_pass(scene, srl, "Debug BVH Intersections", 1, "X", 'VALUE')
if crl.pass_debug_ray_bounces: engine.register_pass(scene, srl, "Debug Ray Bounces", 1, "X", 'VALUE')
if crl.use_pass_volume_direct: engine.register_pass(scene, srl, "VolumeDir", 3, "RGB", 'COLOR')
if crl.use_pass_volume_indirect: engine.register_pass(scene, srl, "VolumeInd", 3, "RGB", 'COLOR')
cscene = scene.cycles
if crl.use_pass_crypto_object:
for i in range(0, crl.pass_crypto_depth, 2):
engine.register_pass(scene, srl, "CryptoObject" + '{:02d}'.format(i), 4, "RGBA", 'COLOR')
if crl.use_pass_crypto_material:
for i in range(0, crl.pass_crypto_depth, 2):
engine.register_pass(scene, srl, "CryptoMaterial" + '{:02d}'.format(i), 4, "RGBA", 'COLOR')
if srl.cycles.use_pass_crypto_asset:
for i in range(0, srl.cycles.pass_crypto_depth, 2):
engine.register_pass(scene, srl, "CryptoAsset" + '{:02d}'.format(i), 4, "RGBA", 'COLOR')
if crl.use_denoising or crl.denoising_store_passes:
engine.register_pass(scene, srl, "Noisy Image", 3, "RGBA", 'COLOR')
if crl.denoising_store_passes:
engine.register_pass(scene, srl, "Denoising Normal", 3, "XYZ", 'VECTOR')
engine.register_pass(scene, srl, "Denoising Normal Variance", 3, "XYZ", 'VECTOR')
engine.register_pass(scene, srl, "Denoising Albedo", 3, "RGB", 'COLOR')
engine.register_pass(scene, srl, "Denoising Albedo Variance", 3, "RGB", 'COLOR')
engine.register_pass(scene, srl, "Denoising Depth", 1, "Z", 'VALUE')
engine.register_pass(scene, srl, "Denoising Depth Variance", 1, "Z", 'VALUE')
engine.register_pass(scene, srl, "Denoising Shadow A", 3, "XYV", 'VECTOR')
engine.register_pass(scene, srl, "Denoising Shadow B", 3, "XYV", 'VECTOR')
engine.register_pass(scene, srl, "Denoising Image Variance", 3, "RGB", 'COLOR')
clean_options = ("denoising_diffuse_direct", "denoising_diffuse_indirect",
"denoising_glossy_direct", "denoising_glossy_indirect",
"denoising_transmission_direct", "denoising_transmission_indirect",
"denoising_subsurface_direct", "denoising_subsurface_indirect")
if any(getattr(crl, option) for option in clean_options):
engine.register_pass(scene, srl, "Denoising Clean", 3, "RGB", 'COLOR')
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