本软件是由solidangle机构出品的MtoA Arnold光线特效渲染3dsmax插件SP2 v0.5.198.2017版，大小：150 MB，支持Maya2017版软件，支持Win系统，语言：英语。

Arnold渲染器是一款高级的、跨平台的渲染 API。是基于物理算法的电影级别渲染引擎，目前由Solid Angle SL 开发。正在被越来越多的好莱坞电影公司以及工作室作为首席渲染器使用。

Arnold渲染器是基于物理算法的电影级别渲染引擎，由Solid Angle SL 开发。正在被越来越多的好莱坞电影公司以及工作室作为首席渲染器使用。

与传统用于 CG 动画的 scanline（扫描线）渲染器（Renderman）不同，Arnold 是照片真实、基于物理的光线追踪渲染器。Arnold 使用前沿的算法，充分利用包括内存、磁盘空间、多核心、多线程、SSE 等在内的硬件资源。

Arnold 的设计构架能很容易地融入现有的制作流程。它建立在可插接的节点系统之上，用户可以通过编写新的 shader、摄像机、滤镜、输出节点、程序化模型、光线类型以及用户定义的的几何数据来扩展和定制系统。Arnold 构架的目标就是为动画及 VFX 渲染提供完整的解决方案。

Arnold for 3ds Max 2017 SP2 v0.5.198.2017 Win

MAXtoA Features and Known Issues

This is the first Preview Release of the Arnold for 3ds Max (MAXtoA) plugin, and does not include support for all Arnold or 3ds Max features. See the online documentation for further details. 3ds Max 2017 Service Pack 2 is required, and provided in the MAXtoA installation.

Render Settings

MAXtoA provides automatic image-based lighting based on 3ds Max’s Environment map. This can be controlled in the Arnold Settings tab, Environment & Background rollup.

Deformation Motion Blur is not yet supported.

3ds Max native lights are not supported in this release. Use the new “Arnold” light.

Light Filters are not yet supported in the Arnold light.

3ds Max Sun Positioner and Physical Sky are supported.

There is limited light support in the viewport.

Lights

3ds Max native lights are not supported in this release. Use the new “Arnold” light.

Light Filters are not yet supported in the Arnold light.

3ds Max Sun Positioner and Physical Sky are supported.

There is limited light support in the viewport.

Shaders

To use Arnold surface shaders on an object, add the shaders as inputs to the new “Arnold Material” and apply the material to the object.

MAXtoA supports third-party shaders compiled for Windows and the current version of Arnold. Place shaders into 3ds Max’s “Plugins” folder.

Legacy 3ds Max maps are optionally supported.

To enable, add an environment variable to Windows with the variable name ARNOLD_SHADECONTEXT_SUPPORT with a value of 1.

Restart Max and enable “Show Incompatible” in the Material/Map Browser to see the legacy 3ds Max maps.

3ds Max shaders currently cannot be exported to an Arnold Scene Source file, and can only be rendered within 3ds Max.

Arnold shaders cannot be used as an input to a 3ds Max shader.

Multi/Sub-Object materials are limited to 255 materials by Arnold.

No automatic mechanism for generating TX files is provided yet. Use the external maketx.exe application provided by Solid Angle, and the “image” shader on your material.

Crash if rendering while an Arnold physical_sky map is in Environment slot with parameters: X = 0,0,0 Y = 1,0,1 Z = 0,1,0

AOVs

You must specify a file name in the Render Setup dialog box’s Common tab in order to save AOVs. This file name is used as a prefix for the AOV file names saved by Arnold. A warning is provided.

AOVs do not get Exposure Control applied.

You may crash Arnold if multiple direct_diffuse AOVs are specified with DeepEXR format AOVs.

Cameras

Only basic features are supported by cameras.

For best results use the Physical Camera.

Basic Depth of Field is supported on Physical Camera.

Procedural Object

The Procedural object is a work-in-progress.

Create the Procedural object at position 0,0,0 then reposition after defining the object path.

Object comes in rotates 90 degrees on X axis.

Bounding Box is not automatically set.

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