Arnold渲染器是一个多平台的渲染系统，此为maya版本，他能够创建无偏差的蒙特卡洛辐射度的真实感可视化，许多公司仍然使用它来处理电影中的广告和动画，例如，怪物之家，爱丽丝梦游仙境等等。
Arnold 渲染作品集合
Arnold v3.1.0.0更新日志：
August 10, 2018
This version uses the Arnold 5.2.0.0 core.
MtoA 3.1.0 is a feature release, including the following improvements:
Shader Improvements
Added sheen parameters in aiStandardSurface.
Added new cell noise shader aiCellNoise.
Cryptomatte shaders are included by default with MtoA.
aiToon can compute the edge detection based on custom toon_id value when it’s set on the shapes.
New Matrix shaders.
Arnold RenderView
Added progress bar to the renderview.
Improved feedback in the status bar, about what is being processed by MtoA.
Standins
Added parameter “operators” allowing to apply operators to a specific standin only. The selection string must refer to the nodes inside the .ass file.
Show the contents of the .ass file in the Standin Attribute Editor, and allow to apply overrides on the selected items.
Stabilized the VP2 display of Standins, including if a render is in progress.
Render To Texture:
Added option “extend edges” to fill texture seams.
Other
Improved the quality of both noice and optix denoisers.
Added menu in “Arnold->Utilities” to Export / Import operator graphs.
Maya shaders “checker”, “multiplyDivide”, and “clamp” are now being exported as Arnold native shaders.
Fixed IPR updates of XGen splines.
Improved Arnold area lights illumination in VP2.
Bifrost foam can be rendered with both a surface and a volume shader.
Extended the menu “Arnold->Utilities->Convert Shaders to Arnold” to support the following utility alShaders : alLayer, alLayerColor, alRemapColor, alRemapFloat, alFractal, alFlake, alLayer. A basic support of mia_material, dielectric and VrayMtl is also included.
