2008

Rendering Elements Separately
Render Elements Panel and Rollout
Main toolbar > Render Scene button > Render Scene dialog > Render Elements
panel > Render Elements rollout
Rendering menu > Render > Render Scene dialog > Render Elements panel >
Render Elements rollout
Rendering to elements lets you separate various information in the rendering
into individual image files. This can be useful when you work with some
image-processing or special-effects software. You can later do compositing
with the element renderings.
These are the elements you can choose to render separately:
■ Alpha: A grayscale representation of the alpha channel, or transparency,
of the scene. Transparent pixels appear in white (value=255) and opaque
in black (value=0). Translucent pixels appear in gray. The darker the pixel,
the more transparent it is.
The alpha channel can be useful when you composite elements.
■ Atmosphere: The atmospheric effects in the rendering.
■ Background: The background of the scene.
Other elements do not include the scene background. Include this element
if you want to use the background in compositing.
The background is not trimmed against geometry, so elements should be
composited over the background. See
Compositing Rendered Elements on
page 6150 .
■ Blend: A custom combination of the previous elements.
The Blend element displays an additional Blend Element Parameters rollout
on page 6162 .
■ Diffuse: The diffuse component of the rendering.
The Diffuse element displays an additional
Diffuse Texture Element rollout
on page 6168 .
■ Hair and Fur: The component of the rendering created by the Hair and
Fur modifier
on page 1049 . See Hair and Fur Render Element on page 6163 .
■ Illuminance HDR Data: Generates an image containing 32–bit floating-point
data that can be used for analyzing the amount of light that falls on a
6144 | Chapter 18 Rendering