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MtoA 4.2.1_ Arnold  6.2.0.1  ，是次要功能发布，带来了Light mix的修复和改进

Enhancements

• Light Mixer

  • A new refresh button to add / reset light group AOV's

  • Light Mixer gets added to the top of the stack

• File Export (.ass/.usd)

  • Allow to use transform node names instead of shapes through new param in the render settings (exportDagName)

Bug Fixes

• mtoa#4385 - ARV progress bar inaccurate when using Adaptive Sampling

• mtoa#4450 - Mac & Linux: crash loading MayaUSD plugin if MtoA is already loaded

• mtoa#4462 - animated procedural in standin doesn't update in viewport, does update in render

• mtoa#4474 - Always export residual lights in the light mixer, with default values

• mtoa#4476 - Imagers : Handle Light mixer limitations elegantly

• mtoa#4477 - Invalid color management data when opening a new scene with ARV opened

• core#10355 Do not warn about loading non-Arnold Yeti libraries

• core#10334 [GPU] Deleting layers in imager_light_mixer cause GPU crashes and frame corruption

• core#10345 [GPU] Stack overflow when using wireframe with many sided polygons

• core#10306 [Imagers] imager_denoiser_noice creates black layers for AOVs not matching layer_selection

• core#10269 [Imagers] Slowdown when doing frequent imager updates

• core#7216 [OSL] Wrong hit distance returned after trace() call

• core#10316 Rare IPR hang

• core#4530 Reset texture cache stats after every render

• core#4845 Support detection of Windows version > 8.0

• usd#654 Transform is not synced for the points primitive

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下载：https://wdown.solidangle.com/mtoa/MtoA-4.2.1-2020.exe

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