2008

Procedures
To apply volume shading to a camera:
1
On the Render toolbar, click Render Scene.
If the active renderer is not already the mental ray renderer, go to the
Common panel, and on the Assign Renderer rollout, click the “...” button
for the Production renderer. A Choose Renderer dialog is displayed.
Highlight “mental ray Renderer” in the list, and then click OK.
2 Click the Renderer tab to go to the Renderer panel. On the Camera Effects
rollout, find the Camera Shaders group, and click Volume.
The
Material/Map Browser on page 5194 is displayed.
3 Choose a volume shader from the list in the Browser, and then click OK.
To apply volume shading to an object:
1 Choose Customize > Preferences. Go to the mental ray panel, and turn
on Enable Mental Ray Extensions.
2 On the Render toolbar, click Render Scene.
If the active renderer is not already the mental ray renderer, go to the
Common panel, and on the Assign Renderer rollout, click the “...” button
for the Production renderer. A Choose Renderer dialog is displayed.
Highlight “mental ray Renderer” in the list, and then click OK.
Leave the Render Scene dialog open, or minimize it.
3
Open the Material Editor. Use the mental ray Connection rollout
on page 5289 to assign a volume shader to the Volume component.
Another technique would be to use the
mental ray material on page 5449
, and assign a shader to the Volume component.
4
Also on the mental ray Connection rollout, click to unlock the
Surface component. Click the button and use the Browser to assign the
Transmat (physics) shader to the surface.
(If you are using the mental ray material, you don't need to first unlock
the Surface component.)
6078 | Chapter 18 Rendering