| Since | 17.0 |
このVOPは、汎用シェーダを表現します。 このノードにSpareパラメータを追加することで、シェーダパラメータを定義することができます。
オプションで、SpareパラメータのParameterセクションのTagsでTag Nameにsidefx::connector_kindを追加すれば、そのノードに入力または出力を付けるかどうかを指定することができます。
そのTag Valueには、“none”, “in”, “out”, “inout”のどれかを指定することができます。
そのようなタグが定義されていなかった場合、または、そのタグ値がそのどれでもなかった場合は、そのパラメータのデフォルトは“in”になります。
Solaris ¶
The generic shader provides some unique capabilities in Solaris. Similar to most other VOPs in a material builder, the generic shader VOP represents UsdShade prims. The 
Material Library's shader translation can leverage special spare parms on this node, to enable more advanced workflows.
Typically an HDA exists to give each shader a unique UI. So while a generic shader node can be used for any shader prims, typically the power comes from using these to produce materials and nodegraph prims.
An important spare parm is to add is the Import Base Parameters button. Clicking this when the other parms are pointing to a valid prim/reference, sets up the inputs, outputs, and parameters from the shade prim.
Here are a few examples of different spare parm configurations with this node:
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Specialize USD Material - This is a tab tool in the Material Library tab menu. You can take materials that exist on the input stage, and specialize them into new materials.
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Material Builder Subnets - These builders setup an inherits arc on newly created materials. These show how some of these spare parms work on subnets, as well as generic shaders.
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Composing Materials HIVE Talk Files - The “Composing Materials with USD and Solaris” HIVE Talk has some example files, one of which shows referencing a flakes pattern as a nodegraph.
The VOP Properties page for all of the available spare parms. There are also parm tags available, to control how inputs and outputs are translated.
