Which versions of 3ds Max are supported by this plugin?

Beginning with the release of Beta 1.00, 3ds Max 2017 and 2018 are supported.

The original Alpha 1.00 supports Max 2016 only and is available from the older versions download page, but it is very incomplete and feature-lacking compared to recent beta versions.

Is there a user manual?

Yes, you can view the manual here: Manual

How can I export Cycles shaders from Blender?

You will need the Blender addon that is included in this plugin's installer to export a shader from Blender. To install this component, select the 'Blender Shader Exporter' option during the install.

After the addon has been installed, you will need to enable it in Blender. To do this, open the File menu and select 'User Preferences...', then go to the 'Add-ons' tab. On the Add-ons tab, click the checkbox to enable the Cycles for Max shader exporter. You can type 'max' in the search box to make this entry easier to find in the list.

With the addon enabled, you can now export a shader. Select an object with the shader you would like to export, then go to File -> Export -> Cycles for Max Shader (.shader). This shader file can then be loaded into a Cycles Shader Graph material in Max.

Note that this addon currently supports most cycles shader nodes, but not all of them. If the exporter finds a type of node it does not support then a warning will be displayed. The shader will still export ignoring all nodes of unsupported types.

A video demonstrating this process is available on youtube here.

Does this plugin support motion blur?

Yes, as of beta 1.05 motion blur is fully supported through the Physical Camera. To enable it, check the 'Enable Motion Blur' checkbox at the bottom of the camera's 'Physical Camera' rollout.

A current limitation is that motion blur is not yet supported for Max fluids. This will be addressed in a future update.

Why do my procedural textures appear blurry in renders?

By default, any procedural (non-bitmap) texmap used in a Cycles material will be sampled as a 512x512px 8bit per channel texture for rendering.

This default resolution can be changed globally in the Texmap Options section of the Translation config panel.

To change this option per-texmap, you can use the Cycles Bitmap Filter texmap node as pictured below.

Do standard Max materials work with Cycles?

Most will not render. Only materials in the ‘Cycles’ category will render in Cycles, all other materials will render as pure black. The exceptions to this are the multi/sub-object material, which works natively in Cycles, and the Physical Material, which is approximated by Cycles.

Unlike materials, nearly all standard Max texmaps will work with Cycles as long as their coordinates are set to "Explicit Map Channel". Three-dimensional procedural textures are not supported.

When I select CUDA as the render device, my render is a solid red screen. How can I fix this?

A solid red render indicates the CUDA Cycles kernel failed to load. This is generally a result of incompatible hardware.

CUDA renders currently require an NVIDIA GPU with Compute Capability of 2.0 or higher. NVIDIA maintains a list of GPUs and their compute capability here: https://developer.nvidia.com/cuda-gpus