Difference between revisions of "GLAPI/glGetFragDataLocation"
m (Renaming category: 'GL 4 API Shader Program Creation' to 'Core API Ref Shader Program Creation'.) |
m (Bot: Adding better formatting.) |
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== Function Definition == | == Function Definition == | ||
| − | GLint '''glGetFragDataLocation'''(GLuint | + | GLint '''glGetFragDataLocation'''(GLuint {{param|program}}, const char * {{param|name}}); |
; program | ; program | ||
| Line 17: | Line 17: | ||
== Description == | == Description == | ||
| − | '''glGetFragDataLocation''' retrieves the assigned color number binding for the user-defined varying out variable | + | '''glGetFragDataLocation''' retrieves the assigned color number binding for the user-defined varying out variable {{param|name}} for program {{param|program}}. {{param|program}} must have previously been linked. {{param|name}} must be a null-terminated string. If {{param|name}} is not the name of an active user-defined varying out fragment shader variable within {{param|program}}, -1 will be returned. |
== Errors == | == Errors == | ||
| − | {{ | + | {{enum|GL_INVALID_OPERATION}} is generated if {{param|program}} is not the name of a program object. |
== See Also == | == See Also == | ||
| − | + | {{apifunc|glLinkProgram}}, {{apifunc|glBindFragDataLocation}}, {{apifunc|glBindFragDataLocationIndexed}}, {{apifunc|glGetFragDataIndex}}, {{apifunc|glGetProgramResource}}, {{apifunc|glGetProgramResourceLocation}} | |
== Copyright == | == Copyright == | ||
| Line 32: | Line 32: | ||
[[Category:Core API Reference|GetFragDataLocation]] | [[Category:Core API Reference|GetFragDataLocation]] | ||
| − | [[Category:Core API Ref Shader Program | + | [[Category:Core API Ref Shader Program Query|GetFragDataLocation]] |
| + | [[Category:Program Object API State Functions|GetFragDataLocation]] | ||
Latest revision as of 09:59, 15 August 2013
| Core in version | 4.6 | |
|---|---|---|
| Core since version | 3.0 | |
glGetFragDataLocation: query the bindings of color numbers to user-defined varying out variables
Function Definition
GLint glGetFragDataLocation(GLuint program, const char * name);
- program
- The name of the program containing varying out variable whose binding to query
- name
- The name of the user-defined varying out variable whose binding to query
Description
glGetFragDataLocation retrieves the assigned color number binding for the user-defined varying out variable name for program program. program must have previously been linked. name must be a null-terminated string. If name is not the name of an active user-defined varying out fragment shader variable within program, -1 will be returned.
Errors
GL_INVALID_OPERATION is generated if program is not the name of a program object.
See Also
glLinkProgram, glBindFragDataLocation, glBindFragDataLocationIndexed, glGetFragDataIndex, glGetProgramResource, glGetProgramResourceLocation
Copyright
Copyright © 2010 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. http://opencontent.org/openpub/.