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mental ray Light Shader Rollout 1345
menta l r ay Li ght S ha der R oll out
Select a light. > Modify panel > mental ray Light Shader
rollout
Note: This rollout appears only if you have enabled the
mental ray extensions by using the mental ray Preferences
panel.
Note: This rollout does not appear on the Create
panel; only on the Modify panel.
The mental ray Light Shader rollout lets you add
mental ray shaders (page 2–1710) to lights. When
you render with the mental ray renderer (page
3–78), light shaders can alter or adjust t he light’s
effect.
To adjust the settings for a light shader, drag the
shader’s button to an unused Material Editor
sample slot. If the software prom pts you to choose
InstanceorCopy,besuretochooseInstance.(If
you edit a copy of the shader, you will have to
drag the sample slot back to the shader button on
the Light Shader rollout before any changes take
effect.)
Inter face
Enable—When on, rendering uses the light shaders
you have assigned to this lig ht. When off, the
shaders have no effect on rendering. Default=off.
Light Shader—Click the button to display a
Material/Map Browser (page 2–1412) and choose
a light shader. Once you have chosen a shader, its
name appears on the button.
Thesearethelightshadersprovidedwith3dsMax:
Shader Librar y
Ambient/Reflective
Occlusion
base
Light Infi nite base
Light Point base
Light Spot base
Photon Emitter Shader—Click the button to display
a Material/Map Browser (page 2–1412) and choose
ashader.Onceyouhavechosenashader,itsname
appears on the button.
Note: No photon emitter shaders are provided with
3dsMax.Thisoptionisforuserswhohaveaccess
to light map shaders via other shader libraries or
custom shader code.
Ad dit i ona l R ol lou ts fo r
Standard Lights
Intensity/Color/Attenuation
Parameters
Create panel > Lights > Create a Standard light . >
Attenuation Parameters rollout
Attenuation settings cause distant o bjects to be dimmer.
The Intensity/Color/Attenuation rollout allows
you to set the color and intensity of your light. You
can also define the attenuation of your light.