2008

TIP If Blur effects are not rendering well with the mental ray renderer, try increasing
the Maximum number of samples in the Renderer panel >
Sampling Quality
Rollout
on page 6083 .
Materials
The mental ray renderer does not support these materials:
■ Advanced Lighting Override material
■ Lightscape material
■ Morpher material
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 data, and because
of this, consume a lot of memory and increase render time. To reduce the
time involved, convert the PSD file to a format such as BMP.
The same is true of TIFF files. In addition, there are certain TIFF subformats
that the mental ray renderer does not support; specifically, LZW, CCIT
(fax), or JPEG compression; non-RGB color models such as CMYK, CIE, or
YCbCr; 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.
■ Combustion map
mental ray Renderer | 6049