* add some (disabled) test code for using OpenImageIO in imbuf
* link cycles, openimageio and boost into blender instead of a shared library
* some cmakefile changes to simplify the code and follow conventions better
* this may solve running cycles problems on windows XP, or give a different
and hopefully more useful error message
Python:
* adds bpy.app.handlers which contains lists, each for an event type:
render_pre, render_post, load_pre, load_post, save_pre, save_post
* each list item needs to be a callable object which takes 1 argument (the ID).
* callbacks are cleared on file load.
Example:
def MyFunc(scene): print("Callback:", data)
bpy.app.handlers.render_post.append(MyFunc)
C:
* This patch adds a generic C callback api which is currently only used by python.
* Unlike python callbacks these are not cleared on file load.
* Windows installer not working for non-admin users and multiple users
* Addon scripts not installing next to user configuration
* Portable install not being taken into account in all places
The main problem was the windows installer was installing system scripts in
AppData next to the user configuration directory, which is not shared between
users. Now these are installed in ProgramFiles, and only addon scripts added
by the users go to AppData.
On all platforms, addon scripts were sometimes getting installed between
system scripts, because the scripts folder in the executable directory was
given precedence over the user configuration folder, that is no longer done
now. So addons now behave like user configuration, they are preserved even
if you download a newer build of the same blender version.
If you have an installation of 2.57 on windows, the addon install location
will not change until we do the version bump to 2.58, to avoid conflicts with
the existing the installed 2.57 version.
The old behavior of giving precedence to the local folder was done to support
portable install, where all configuration is written to the local folder. This
is now implemented differently: if and only if a "config" folder exists in the
local folder, portable install will be assumed, and files will only be written
to that local folder.
Nothing is changed by default but some linux distributions want to have executing python be opt-in.
This keeps the same functionality but disables auto-run from factory settings and in background mode unless its enabled as a command line argument.
This CMake option is marked as advanced and wont show in the regular options list so its less likely to be enabled by people that like to turn everything ON without reading descriptions :)
Some notes about code status:
* The Blender modifications were fairly quickly put together, much more code
polish and work is needed to get this to a state where it can be committed
to trunk. Files created with this version may not work in future versions.
* Only simple path tracing is supported currently, but we intend to provide
finer control, and more options where it makes sense.
* For GPU rendering, only CUDA works currently. The intention is to have the
same kernel code compile for C++/OpenCL/CUDA, some more work is needed to
get OpenCL functional.
* There are two shading backends: GPU compatible and Open Shading Language.
Unfortunately, OSL only runs on the CPU currently, getting this to run on
the GPU would be a major undertaking, and is unlikely to be supported soon.
Additionally, it's not possible yet to write custom OSL shaders.
* There is some code for adaptive subdivision and displacement, but it's far
from finished. The intention is to eventually have a nice unified bump and
displacement system.
* The code currently has a number of fairly heavy dependencies: Boost,
OpenImageIO, GLEW, GLUT, and optionally OSL, Partio. This makes it difficult
to compile, we'll try to eliminate some, it may take a while before it
becomes easy to compile this.
