.. index:: single: useBackground single: 0x55534247 single: category; drawdb; shader; surface; useBackground single: category; shader; surface _default - useBackground (0x55534247) ======================================================================================================================================= :classification: drawdb/shader/surface/useBackground shader/surface :plugin: (built-in) :id: 0x55534247 :link: visit Autodesk Maya 2026 official reference `a link`_. .. _a link: https://help.autodesk.com/cloudhelp/2026/ENU/Maya-Tech-Docs/Nodes/useBackground.html Attributes (61) -------------------------------------- .. raw:: html
Long name (short name) Type Value Min/Max Flags
channel box
matteOpacity (mog) float
1
 - connectable, in, keyable, out, storable
reflectivity (rfl) float
0.5
 0/- connectable, in, keyable, out, storable
shadowMask (sm) float
1
 0/1 connectable, in, keyable, out, storable
specularColor (sc) float3
-
 - connectable, in, out, storable
specularColorB (sb) float
0.5
 - connectable, in, keyable, out, storable
specularColorG (sg) float
0.5
 - connectable, in, keyable, out, storable
specularColorR (sr) float
0.5
 - connectable, in, keyable, out, storable
external visible attributes
frozen (fzn) bool
-
 0/1 connectable, in, out, storable
frozenAffected (fza) bool
-
 0/1 connectable, extension, out, storable
matteOpacityMode (mom) enum
2
  • Solid Matte (1)
  • Opacity Gain (2) (default)
1/2 connectable, in, out, storable
normalCamera (n) float3
-
 - connectable, in, out
normalCameraX (nx) float
1
 - connectable, in, out
normalCameraY (ny) float
1
 - connectable, in, out
normalCameraZ (nz) float
1
 - connectable, in, out
outColor (oc) float3
-
 - connectable, out
outColorB (ocb) float
-
 - connectable, out
outColorG (ocg) float
-
 - connectable, out
outColorR (ocr) float
-
 - connectable, out
outMatteOpacity (omo) float3
-
 - connectable, out
outMatteOpacityB (omob) float
-
 - connectable, out
outMatteOpacityG (omog) float
-
 - connectable, out
outMatteOpacityR (omor) float
-
 - connectable, out
outTransparency (ot) float3
-
 - connectable, out
outTransparencyB (otb) float
-
 - connectable, out
outTransparencyG (otg) float
-
 - connectable, out
outTransparencyR (otr) float
-
 - connectable, out
pointCamera (pc) float3
-
 - connectable, in, out
pointCameraX (px) float
1
 - connectable, in, out
pointCameraY (py) float
1
 - connectable, in, out
pointCameraZ (pz) float
1
 - connectable, in, out
rayDirection (rad) float3
-
 - connectable, in
rayDirectionX (rdx) float
-
 - connectable, in
rayDirectionY (rdy) float
-
 - connectable, in
rayDirectionZ (rdz) float
1
 - connectable, in
reflectionLimit (fll) short
2
 0/- connectable, in, out, storable
external hidden attributes
backgroundSampler (rtb) addr
-
 - connectable, hidden, in
isHistoricallyInteresting (ihi) byte
2
 0/255 connectable, hidden, in, out, storable
lightDataArray (ltd) lightData
-
 - array, connectable, hidden, in
lightAmbient (la) bool
1
 0/1 connectable, hidden, in
lightBlindData (lbd) addr
-
 - connectable, hidden, in
lightDiffuse (ldf) bool
1
 0/1 connectable, hidden, in
lightDirection (ld) float3
-
 - connectable, hidden, in
lightDirectionX (ldx) float
1
 - connectable, hidden, in
lightDirectionY (ldy) float
1
 - connectable, hidden, in
lightDirectionZ (ldz) float
1
 - connectable, hidden, in
lightIntensity (li) float3
-
 - connectable, hidden, in
lightIntensityB (lib) float
1
 - connectable, hidden, in
lightIntensityG (lig) float
1
 - connectable, hidden, in
lightIntensityR (lir) float
1
 - connectable, hidden, in
lightShadowFraction (lsf) float
0.5
 - connectable, hidden, in
lightSpecular (ls) bool
-
 0/1 connectable, hidden, in
preShadowIntensity (psi) float
1
 - connectable, hidden, in
message (msg) message
-
 - connectable, hidden, out
objectId (oi) addr
-
 - connectable, hidden, in
primitiveId (pi) long
-
 - connectable, hidden, in
rayDepth (rd) short
-
 - connectable, hidden, in
rayInstance (ryi) long
-
 - connectable, hidden, in
raySampler (rtr) addr
-
 - connectable, hidden, in
internal attributes
binMembership (bnm) -
-
 - hidden, storable
caching (cch) bool
-
 0/1 connectable, in, out, storable
nodeState (nds) enum
-
  • Normal (0)
  • HasNoEffect (1)
  • Blocking (2)
  • Waiting-Normal (8)
  • Waiting-HasNoEffect (9)
  • Waiting-Blocking (10)
0/10 connectable, in, out, storable