glGetFragDataIndex — query the bindings of color indices to user-defined varying out variables
|const char * name
The name of the program containing varying out variable whose binding to query
The name of the user-defined varying out variable whose index to query
glGetFragDataIndex returns the index of the fragment color to which the variable
was bound when the program object
program was last linked. If
name is not a varying out
program, or if an error occurs, -1 will be returned.
glGetFragDataIndex is available only if the GL version is 3.3 or greater.
GL_INVALID_OPERATION is generated if
program is not the name of a program object.
|Function / Feature Name||2.0||2.1||3.0||3.1||3.2||3.3||4.0||4.1||4.2||4.3||4.4||4.5|
Copyright © 2010-2014 Khronos Group. This material may be distributed subject to the terms and conditions set forth in the Open Publication License, v 1.0, 8 June 1999. https://opencontent.org/openpub/.