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3dsMaxMaterialsinmentalrayRenderings 83
to experiment w ith parameter values to get a
comparable rendering result.
Tip: If Blur effects are not rendering well with the
mentalrayrenderer,tryincreasingtheMaximum
number of samples in the Renderer panel >
Sampling Qualit y Rollout (page 3–97) .
Materials
The mental ray renderer does not support these
mater ials:
• Advanced Lighting Override material
•Lightscapematerial
•Morphermaterial
Raytrace Material
The mental ray renderer supports all Raytrace
material settings except for the antialiasing
parameters and the settings found under
Rendering > Raytracer Settings and Rendering
> Raytrace Global Include/Exclude. All these
options are specific to the default scanline renderer.
Tip: While the mental ray renderer ignores the
global inclusion or exclusion settings for the ray
tracer, you
can enable or disable ray-tracing at the
local level of a Raytrace material or map.
Maps
•Bitmap
The mental ray renderer can’t use the
Progressive JPEG (.
jpg) format as a bitmap.
Also, Summed Area filtering is not supported
(in the Filtering group of the Bitmap Parameters
rollout).
PSD files are supported, but are translated into
binary d ata, and because of this, consume a
lot of memory and increase render time. To
reducethetimeinvolved,convertthePSDfile
to a format such as BMP.
ThesameistrueofTIFFfiles.Inaddition,there
are cer tain TIFF subformats that the mental ray
renderer does
not support; specifically, LZW,
CCIT (fax), or JPEG compression; non-RGB
colormodelssuchasCMYK,CIE,orYCbCr;or
multiple images in the same file (in this case,
only the first image is used). The mental ray
renderer does support bilevel (1-bit), grayscale
(4- or 8-bit), color map (4- or 8-bits), RGB(A)
(8-, 16-, or 32-bit) TIF images, and TIF files
with image strips.
•Combustionmap
The mental ray renderer doesn’t support this
map.
•FlatMirrormap
Flat Mirror is supported b y the mental ray
renderer, except for the First Frame Only and
Every Nth Frame parameters.
•Raytracemap
The mental ray renderer supports al l Raytrace
map settings except for the antialiasing
parameters.
• Reflect/Refract map
This map tells the mental ray renderer to use
ray-traced reflections and refractions. Most
parameters are suppor ted, but the parameters
BlurOffset,FirstFrameOnly,EveryNthFrame,
and Atmosphere Ranges are not supported.
Note: The mental ray renderer does not fully
support cubic maps for Reflect/Refract maps.
It uses cubic maps if they have already been
generated by the default scanline renderer, but
it do es not generate them. If Source > From File
is active and the mental ray renderer can find
the six cubic maps, it uses them. If Source >
Automatic is active, or if the cubic maps cannot
be found, the mental ray renderer generates
ray-traced reflections or refrac tions instead.