Use this annotation to define the contents of an external file as the initialization value for an effect parameter. For example:
string SasResourceAddress = "Value";
where Value is an ASCII text string that may contain an absolute or relative path. A relative path is relative to the directory that contains the effect file.
Here is an example:
texture2D DetailTexture < string SasResourceAddress = "noise.dds"; >;
The default value is an empty string.