This adds a setting to enable data caching, and another one to set the
maximum cache size in megabytes.
When caching is enabled we load the data for the entire animation in
memory, as we already do, however, if the data exceeds the memory limit,
render is aborted.
When caching is disabled, we simply load the data for the current frame
in memory.
Ref D10197
Reviewed By: brecht
Differential Revision: https://developer.blender.org/D11163
This is an initial implementation of a USD importer.
This work is comprised of Tangent Animation's open source USD importer,
combined with features @makowalski had implemented.
The design is very similar to the approach taken in the Alembic
importer. The core functionality resides in a collection of "reader"
classes, each of which is responsible for converting an instance of a
USD prim to the corresponding Blender Object representation.
The flow of control for the conversion can be followed in the
`import_startjob()` and `import_endjob()` functions in `usd_capi.cc`.
The `USDStageReader` class is responsible for traversing the USD stage
and instantiating the appropriate readers.
Reviewed By: sybren, HooglyBoogly
Differential Revision: https://developer.blender.org/D10700
This replaces header include guards with `#pragma once`.
A couple of include guards are not removed yet (e.g. `__RNA_TYPES_H__`),
because they are used in other places.
This patch has been generated by P1561 followed by `make format`.
Differential Revision: https://developer.blender.org/D8466
