Sergey Sharybin
1788293a01
Previous fix didn't work well enough because on Windows Python has different environment than Blender ans setting variables in there made no effect from Blender point of view.
153 lines
4.4 KiB
Python
153 lines
4.4 KiB
Python
#
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# Copyright 2011-2013 Blender Foundation
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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# <pep8 compliant>
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def _is_using_buggy_driver():
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import bgl
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# We need to be conservative here because in multi-GPU systems display card
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# might be quite old, but others one might be just good.
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#
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# So We shouldn't disable possible good dedicated cards just because display
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# card seems weak. And instead we only blacklist configurations which are
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# proven to cause problems.
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if bgl.glGetString(bgl.GL_VENDOR) == "ATI Technologies Inc.":
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import re
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version = bgl.glGetString(bgl.GL_VERSION)
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if version.endswith("Compatibility Profile Context"):
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# Old HD 4xxx and 5xxx series drivers did not have driver version
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# in the version string, but thsoe cards do not quite work and
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# cusing crashes.
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return True
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regex = re.compile(".*Compatibility Profile Context ([0-9]+(\.[0-9]+)+)$")
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if not regex.match(version):
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# Skip cards like FireGL
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return False
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version = regex.sub("\\1", version).split('.')
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return int(version[0]) == 8
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return False
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def _workaround_buggy_drivers():
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if _is_using_buggy_driver():
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import _cycles
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if hasattr(_cycles, "opencl_disable"):
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print("Cycles: OpenGL driver known to be buggy, disabling OpenCL platform.")
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_cycles.opencl_disable()
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def init():
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import bpy
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import _cycles
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import os.path
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# Workaroud posibly buggy legacy drivers which crashes on the OpenCL
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# device enumeration.
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#
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# This checks are not really correct because they might still fail
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# in the case of multiple GPUs. However, currently buggy drivers
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# are really old and likely to be used in single GPU systems only
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# anyway.
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#
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# Can't do it in the background mode, so we hope OpenCL is no enabled
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# in the user preferences.
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if not bpy.app.background:
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_workaround_buggy_drivers()
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path = os.path.dirname(__file__)
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user_path = os.path.dirname(os.path.abspath(bpy.utils.user_resource('CONFIG', '')))
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_cycles.init(path, user_path, bpy.app.background)
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def create(engine, data, scene, region=None, v3d=None, rv3d=None, preview_osl=False):
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import bpy
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import _cycles
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data = data.as_pointer()
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userpref = bpy.context.user_preferences.as_pointer()
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scene = scene.as_pointer()
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if region:
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region = region.as_pointer()
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if v3d:
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v3d = v3d.as_pointer()
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if rv3d:
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rv3d = rv3d.as_pointer()
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engine.session = _cycles.create(engine.as_pointer(), userpref, data, scene, region, v3d, rv3d, preview_osl)
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def free(engine):
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if hasattr(engine, "session"):
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if engine.session:
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import _cycles
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_cycles.free(engine.session)
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del engine.session
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def render(engine):
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import _cycles
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if hasattr(engine, "session"):
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_cycles.render(engine.session)
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def bake(engine, obj, pass_type, object_id, pixel_array, num_pixels, depth, result):
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import _cycles
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session = getattr(engine, "session", None)
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if session is not None:
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_cycles.bake(engine.session, obj.as_pointer(), pass_type, object_id, pixel_array.as_pointer(), num_pixels, depth, result.as_pointer())
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def reset(engine, data, scene):
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import _cycles
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data = data.as_pointer()
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scene = scene.as_pointer()
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_cycles.reset(engine.session, data, scene)
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def update(engine, data, scene):
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import _cycles
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_cycles.sync(engine.session)
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def draw(engine, region, v3d, rv3d):
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import _cycles
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v3d = v3d.as_pointer()
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rv3d = rv3d.as_pointer()
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# draw render image
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_cycles.draw(engine.session, v3d, rv3d)
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def available_devices():
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import _cycles
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return _cycles.available_devices()
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def with_osl():
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import _cycles
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return _cycles.with_osl
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def with_network():
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import _cycles
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return _cycles.with_network
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def system_info():
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import _cycles
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return _cycles.system_info()
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