Annotations

Annotations are user-specific data that can be attached to any technique, pass, or parameter. An annotation is a flexible way to add information to individual parameters. The information can be read back and used any way the application chooses. An annotation can be any data type.

Syntax

type id = expression ;

• type - Any valid High-Level Shader Language numeric or string type.
• id - A unique identifier. See IDs and Semantics.
• expression - Evaluate an expression. See Expressions.

Remarks

Restrictions for using annotations include that they:

• Must be either numeric or strings.
• Must always be initialized with a default value.
• Can be associated with Techniques and Passes and top-level Parameters.
• Can be written to and read from with either ID3DXEffect or ID3DXEffectCompiler.
• Can be added with ID3DXEffect.
• Cannot be referenced inside the effect.
• Cannot have sub-semantics or sub-annotations.