glcreateshader(3g) [osx man page]

GLCREATESHADER(3G)						    OpenGL 3.3							GLCREATESHADER(3G)

NAME

       glCreateShader - Creates a shader object

C SPECIFICATION

       GLuint glCreateShader(GLenum shaderType);

PARAMETERS

       shaderType
	   Specifies the type of shader to be created. Must be one of GL_VERTEX_SHADER, GL_GEOMETRY_SHADER or GL_FRAGMENT_SHADER.

DESCRIPTION

       glCreateShader creates an empty shader object and returns a non-zero value by which it can be referenced. A shader object is used to
       maintain the source code strings that define a shader.  shaderType indicates the type of shader to be created. Three types of shaders are
       supported. A shader of type GL_VERTEX_SHADER is a shader that is intended to run on the programmable vertex processor. A shader of type
       GL_GEOMETRY_SHADER is a shader that is intended to run on the programmable geometry processor. A shader of type GL_FRAGMENT_SHADER is a
       shader that is intended to run on the programmable fragment processor.

       When created, a shader object's GL_SHADER_TYPE parameter is set to either GL_VERTEX_SHADER, GL_GEOMETRY_SHADER or GL_FRAGMENT_SHADER,
       depending on the value of shaderType.

NOTES

       Like buffer and texture objects, the name space for shader objects may be shared across a set of contexts, as long as the server sides of
       the contexts share the same address space. If the name space is shared across contexts, any attached objects and the data associated with
       those attached objects are shared as well.

       Applications are responsible for providing the synchronization across API calls when objects are accessed from different execution threads.

ERRORS

       This function returns 0 if an error occurs creating the shader object.

       GL_INVALID_ENUM is generated if shaderType is not an accepted value.

ASSOCIATED GETS

       glGetShader() with a valid shader object and the parameter to be queried

       glGetShaderInfoLog() with a valid shader object

       glGetShaderSource() with a valid shader object

       glIsShader()

SEE ALSO

       glAttachShader(), glCompileShader(), glDeleteShader(), glDetachShader(), glShaderSource()

COPYRIGHT

       Copyright (C) 2003-2005 3Dlabs Inc. Ltd. 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/.

OpenGL 3.3							    03/08/2011							GLCREATESHADER(3G)

GLATTACHSHADER(3G)						  [FIXME: manual]						GLATTACHSHADER(3G)

NAME

       glAttachShader - Attaches a shader object to a program object

C SPECIFICATION

       void glAttachShader(GLuint program, GLuint shader);

PARAMETERS

       program
	   Specifies the program object to which a shader object will be attached.

       shader
	   Specifies the shader object that is to be attached.

DESCRIPTION

       In order to create a complete shader program, there must be a way to specify the list of things that will be linked together. Program
       objects provide this mechanism. Shaders that are to be linked together in a program object must first be attached to that program object.
       glAttachShader attaches the shader object specified by shader to the program object specified by program. This indicates that shader will
       be included in link operations that will be performed on program.

       All operations that can be performed on a shader object are valid whether or not the shader object is attached to a program object. It is
       permissible to attach a shader object to a program object before source code has been loaded into the shader object or before the shader
       object has been compiled. It is permissible to attach multiple shader objects of the same type because each may contain a portion of the
       complete shader. It is also permissible to attach a shader object to more than one program object. If a shader object is deleted while it
       is attached to a program object, it will be flagged for deletion, and deletion will not occur until glDetachShader() is called to detach it
       from all program objects to which it is attached.

ERRORS

       GL_INVALID_VALUE is generated if either program or shader is not a value generated by OpenGL.

       GL_INVALID_OPERATION is generated if program is not a program object.

       GL_INVALID_OPERATION is generated if shader is not a shader object.

       GL_INVALID_OPERATION is generated if shader is already attached to program.

ASSOCIATED GETS

       glGetAttachedShaders() with the handle of a valid program object

       glGetShaderInfoLog()

       glGetShaderSource()

       glIsProgram()

       glIsShader()

SEE ALSO

       glCompileShader(), glCreateShader(), glDeleteShader(), glDetachShader(), glLinkProgram(), glShaderSource()

COPYRIGHT

       Copyright (C) 2003-2005 3Dlabs Inc. Ltd. 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/.

[FIXME: source] 						    05/30/2012							GLATTACHSHADER(3G)