Blender Git Loki

Utility functions for setting the cache path. Same procedure as in classic pointcache, can be improved later.

Removed unused Scene argument from reader/writer api functions.

Use a dummy struct type PTCArchive instead of a plain void pointer.

Use the path utility functions for generating the filename inside the new point cache, instead of using the blenkernel code.

Some directory reorganization and a bunch of other stuff ...

Basic reader class.

More info in the persistent alembic storage. Now use Writer/Reader structs in PointCache instead of plain Archive. The writer is constructed on write calls currently, because the basic point cache creation function doesn't provide necessary parameters. This will get replaced eventually, for now just testing the alembic code.

Added reader constructor function for PTCacheID, but disabled reader/writer in DNA for now, this needs consideration.

Create an OArchive internally for writing out point cache.

Library linking for Alembic.

Fix for Alembic find script to link all the necessary allembic libs.

Pass cache and object arguments to ptcache_path directly instead of the PTCacheID. This allows using the function for the alembic archive name as well, where we don't construct the cache id struct. Also added a few sanity checks to avoid potential NULL pointer access.

Set the WITH_ALEMBIC define in subfolders that actually use it, follows the pattern in other libs.

Moved old point cache RNA from rna_object_force to rna_pointcache. This will make it easier to replace it with the new implementation while avoiding name conflicts.

Store an untyped archive pointer in the DNA PointCache struct. This is used to store an alembic archive which constitutes the point cache output.

Use a #define to mark old point cache code in the RNA. Even thoug it will have to be kept enabled for now, this makes it easier to identify the old stuff and remove it later.

Add WITH_ALEMBIC as a cmake option and set a WITH_ALEMBIC define to use in C code.

RNA function for defining point cache API.

Optional HDF5 support. This is not directly linked by Alembic, so Blender has to link hdf5 itself if desired.

Some test code for defining a particles schema, based on I/OPointsSchema of alembic.