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C4DtoA 2.1版本开始不再支持C4D R16，增加支持C4D R19，如果安装后C4D 打不开，请先卸载插件，然后把C4D更新到最新版本，最后重新安装插件即可
新功能：
- Add UI to run noice from the application
性能提升：
- Add Displacement and Subdivision options to the procedural parameter overrides
- Allow overriding the whole shader array on the procedural parameter overrides GUI
- Add a checkbox to the EXR driver to create all AOVs for noice
- Add ‘Uniform scale’ option to triplanar, uv_transform and image shaders
- Support for the Parallel, Isometric and Dimetric camera projections
- Support default OCIO color spaces
- Add Install Trial License dialog
Bug修复：
- Optix denoiser conflicts with other plugins
- Render error with older Nvidia driver
- Inconsistent object mask AOV filter
- Export polygon selections when no shader is assigned to them
- Thin Walled SSS geometry is destroying mattes
- IPR does not update when an instanced procedural is removed
- Crash with AOVs when rendering takes in Team Render
- Crash on OSX when taking a snapshot in the IPR while adaptive sampling is higher than 9
- Crash in the IPR when rendering AA_inv_density AOV with a heatmap filter
- Light linking does not work with Box and Sphere type volumes
- Crash when ASS export is interrupted
- Do not use the global namespace for procedurals
- The Left, Front, Top, etc. camera projections do not respect the viewport rotation
- Use the default string of the AOV type parameters as the AOV name
- Crash on exit when procedural parameter overrides are used
- IPR crash with instances in a heavy scene
- Do not animate Alembic in the viewport by default
- X-Particles scene renders extremely slowly when you enable motion blur
- Scene with XP Generator object and XP group crashes when exporting to ASS
- Set the current working directory when loading or changing a scene
