Blender Git Commits

Updated OpenVDB library to 2.3.0;

updated master into branch

- merge from trunk, up to r61080;

VDB texture:
* Avoid slow file open every time valid_vdb_file is called (in every texture3D
call), do a quick filename extension check for now.
* Pass float coordinates to the GridSampler instead of rounding to integers.

Fix bug in OpenVDB with an uninitialized variable in the default Transform.

- merge from trunk, up to r60196;
note: this fixed the problem with RNA I was getting when loading a osl shader;

- merge from trunk, up to r59882.

- lookup is now performed using OpenVDB's sampler, using trilinear interpolation.

- merged from trunk, up to r59732; - resolved conflict in CMake files from Cycles Standalone changes;

- added templated lookup, hidden behind the new VDBAccessor class; had to move VDBVolumeFile definition to avoid circular reference;

- added grid selection: if a grid is specified by name in OIIO's TextureOpt, we search for it, and return false in the lookup if it isn't found; if it isn't specified by name, we take the first grid in the file;
- code reorganization: code was split in more files, separating the utility functions from the VDBVolumeFile struct;
- initial version of a templated lookup method for compatibility with any vdb grid type.

- added error handling for when vdb file can't be opened;
- minor corrections

- added snippet to allow for single thread viewport preview.

- removed unused functions;

- merge from trunk, up to r59211.

- changed memory allocation of both VDBTextureSystem and each VDBVolumeFile stored in the VDBTextureSystem's map to use smart pointers;
- implemented naive interpolation for texture lookup (nearest neighbor);

- added a map to keep track of open volume files;

- added the library "cycles_kernel_textures" to build target;
- isolated OSL Services from VDB Volumes by adding the class VDBTextureSystem to hold API;

- added methods to check if texture is a gdb file;
- cleaned up the files after moving the volume class to cycles/kernel/textures from cycles/kernel/osl;

- Merged trunk, up to revision 58632.