8

Default Scanline R enderer Rollout 37
When the VUE File Renderer Is Active
The Renderer p anel contains a single rollout:
VUE File Renderer (page 3–126)
Default Scanline R enderer
Main toolbar > Render Scene > Render Scene dialog >
Choose Default Scanline Renderer as the ac tive draft or
production renderer. > Renderer panel > Default Scanline
Renderer rollout
Rendering menu > Render > Render Scene dialog >
Choose Default Scanline Renderer as the ac tive draft or
production renderer. > Renderer panel > Default Scanline
Renderer rollout
This rollout sets parameters for the default scanline
renderer (page 3–1100)
.
Note: If your scene includes animated
bitmaps, including materials, projector lights,
environments, and so on, the animation file
isreloadedonceperframe. Ifyoursceneuses
multiple animations, or if the animations are
themselves large files, this can slow down
rendering performance.
Envir onment Alpha Toggle a nd Filtering
To control whether or not the renderer uses the
environment m ap’s alpha channel in creating the
alphafortherenderedimage,chooseCustomize
> Preferences >
Rendering (page 3–863) ,and
thenturnonUseEnvironmentAlphainthe
Background group. If Use Environment Alpha
is off (the default), the background receives an
alpha value of 0 (completely transparent). If
UseEnvironmentAlphaison,thealphaofthe
resulting image is a combination of the scene and
the background image’s alpha channel. Also,
when you render to
TGA files (page 3–683) with
pre-multiplied alpha (page 3–1091) turned off,
turning on Use Environment Alpha prevents
incorrect results.
You can also control whether or not a background
image is affected by the renderer’s antialiasing
filter. Cho ose Customize > Preferences >
Rendering,andthenturnonFilterBackgroundin
the Background group. Default=off.
Tip: If you plan to composite 3ds Max objects
in another program such as Combustion or
Photoshop, render the objects against a black
background. Otherwise, a fringe of environment
or background color can appear around the
3ds Max objects.
Plate Match Filteri ng
This section describes the Plate Match/MAX R2
antialiasing filter (see
Antialiasing group (page
3–39)
for descript ions of other filtering options).
In versions of 3ds Max prior to R2.5, antialiasing
affected only geometric edges, with the filtering
of bitmaps b eing controlled in the Bitmap Map
parameters (py ramidal, summed area, or no
filtering). Current antialiasing filters affect every
aspect of the object, filtering textures along with
geometric edges.