3D Graphics, Tutorials and Tips
Using 3DS Studio Max and Mental Ray
DMMultimedia | 3d tutorials | iRay Tutorials | iRay Introduction
The iray render engine, as standard, has been included in Autodesk 3ds Max for the last few years. This is a powerful render engine that takes advantage of the power of the parallel processors in modern Nvidia graphics cards. It can take advantage of a simple nvidia graphics card (works well on laptop cards too), but can also be used with a group of graphics cards (with some motherboards you can link up several high-end graphics cards).
The iray render engine has now been complemented with some dedicated iray shaders that enable us to use it in a similar manner to the Production Shaders in Mental Ray. These new iray shaders include a multi-purpose, multi-layer material (ideal for metallic paints and glossy materials) and a Matte shader. How to install and set these shaders up is explained below. With these shaders setup we will look at creating a simple car scene for use with iRay.
The iray renderer has some advantages :
But the iray renderer has some noticeable disadvantages (some are complete deal breakers to me) :
To sum up, think long and hard if you want to put any effort into learning iray, as the above limitations really hamstring any project I would like to use with iray. I think some multi-layer iray material is in development, but as a render engine that has been out for years, the lack of these quite simple basic shaders is simply risable.
The iray material (results shown below) is a very flexible shader. It allows us to create and fine tune materials that would be very difficult in Mental Ray. Background information can be found here : http://blog.irayrender.com/
The shader can be downloaded here : http://forum.mentalimages.com/
Follow the easy instructions in the help PDF to install this shader.
The iray matte object shader can be used in a very similar way to the matte/shadow material in Mental Ray. It allows us to render an object within a backplate. Background information can be found here : http://blog.irayrender.com/
The shader can be downloaded here :http://forum.mentalimages.com/
Again follow the easy instructions in the included help file to install this shader.