glShaderSource

Replaces the source code in a shader object

Signature

glShaderSource( GLuint ( shader ) , GLsizei ( count ) , const GLchar **( string ) , const GLint *( length ) )-> void
glShaderSource( shaderObj , string )
glShaderSource( GLhandle(shaderObj),[bytes(string),...]) -> None

Parameters

VariablesDescription
shader
Specifies the handle of the shader object whose source code is to be replaced.
count
Specifies the number of elements in the string and length arrays.
string
Specifies an array of pointers to strings containing the source code to be loaded into the shader.
length
Specifies an array of string lengths.

Description

glShaderSource sets the source code in shader to the source code in the array of strings specified by string . Any source code previously stored in the shader object is completely replaced. The number of strings in the array is specified by count . If length is NULL , each string is assumed to be null terminated. If length is a value other than NULL , it points to an array containing a string length for each of the corresponding elements of string . Each element in the length array may contain the length of the corresponding string (the null character is not counted as part of the string length) or a value less than 0 to indicate that the string is null terminated. The source code strings are not scanned or parsed at this time; they are simply copied into the specified shader object.

Notes

OpenGL copies the shader source code strings when glShaderSource is called, so an application may free its copy of the source code strings immediately after the function returns.

Errors

GL_INVALID_VALUE is generated if shader is not a value generated by OpenGL.
GL_INVALID_OPERATION is generated if shader is not a shader object.
GL_INVALID_VALUE is generated if count is less than 0.

Associated Gets

glGetShader with arguments shader and GL_SHADER_SOURCE_LENGTH
glGetShaderSource with argument shader

Version Support

glShaderSource

See Also

Copyright

Copyright
2003-2005 3Dlabs Inc. Ltd. 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. .

Sample Code References

The following code samples have been found which appear to reference the functions described here. Take care that the code may be old, broken or not even use PyOpenGL.

glShaderSource
{LGPL} PyMT pymt/graphx/shader.py Lines: 12, 53
{GPL3} OpenGL-Programmable 05-shader.py Lines: 35
{GPL3} OpenGL-Programmable 07-attrib.py Lines: 35
{GPL3} OpenGL-Programmable 09-gles2.py Lines: 36
{GPL3} OpenGL-Programmable 06-perpixel.py Lines: 35
{GPL3} OpenGL-Programmable 10-gl3.2core.py Lines: 35
{GPL3} OpenGL-Programmable 08-pbo.py Lines: 35