8

Add Negative Filter 359
entire scene or can be generated around specific
objects in your scene.
Lens Effects are applied through the Video Post
interface. To learn about adding scene and image
filter events to the video post queue, see
Add Scene
Event (page 3–325)
,and Add Image Filter Event
(page 3–330)
.
LensEffectsincludesthefollowingfilters:
•
Lens Effects Flare (page 3–366) :Createsthe
opticaleffectthatoccurswhenabrightlight
reflects across the lens of a camera.
•
Lens Effects Focus (page 3–377) :Createsa
blur on objects based on their distance from
the camera. tracks an object’s distance from
the c amera using a Z-Buffer. Focus uses t he
Z-Buffer information from the scene to create
its blurring effects.
•
Lens Effects Glow (page 3–380) :Createsa
glowing light around any assigned object, such
as a laser b e am or the thr uster on a space ship.
•
Lens Effects Highlig ht (page 3–385) :Createsa
bright cross star effect on a designated object.
Wa rn in g: When you animate Lens Effects parameters,
this creates pointers into the actual scene, so Lens Effects
animation is lost if you save the Video Post queue in a
VPX file (page 3 –1125) . To preser ve the animation, save
the Video Post data, including Lens Effects animation,
in the MAX file.
Pr ocedur es
Len Effects like Glow and Highlight can be set
to affect specific objects in your scene based on
their
G-Buffer ID (page 3–1040) .Thisletsyou
apply glows and highlights to the object, or to the
mater ial, or b oth.
To set an object’s G-Buffer ID:
1.
Select the object.
2. Right-click the object and then choose
Propert ies from the quad menu.
3. IntheObjectPropertiesdialog,setG-Buffer
Object Channel to a non-zero value, and then
click OK.
The G-Buffer ID can be any p osit ive integer.
If you give the same G-Buffer ID value to
more than one object, all these objects will b e
post-processed.
Add Negative Filter
Rendering menu > Video Post > Video Post toolbar > Add
ImageFilterEvent>ChooseNegativeFilterfromtheFilter
Plug-In list.
Effect of negative filter
TheNegativeFilterinvertsthecolorsinthe
image, making it negative like a negative color
photograph.
When you click the Setup button in the Edit Filter
EventdialogfortheNegativefilter,theVideoPost
dialog is replaced by a modeless Negative Filter
dialog with a Blend spinner. You can turn on the
Auto Key button, move the time slider, and change
theBlendvaluetocreatekeys.(Youcanalsouse
other 3ds Max functions; for example, you can
create objects.) When you’ve s et all the keys you
want, click the OK button to return to Video Post.
After creating keys from the Video Post filter, you’ll
findthetrackforthenewkeysasachildofthe