glCreateProgram - Creates a program object
Contents
Associated Gets
glGet() with the argument GL_CURRENT_PROGRAMglGetActiveAttrib() with a valid program object and the index of an active attribute variable
glGetActiveUniform() with a valid program object and the index of an active uniform variable
glGetAttachedShaders() with a valid program object
glGetAttribLocation() with a valid program object and the name of an attribute variable
glGetProgram() with a valid program object and the parameter to be queried
glGetProgramInfoLog() with a valid program object
glGetUniform() with a valid program object and the location of a uniform variable
glGetUniformLocation() with a valid program object and the name of a uniform variable
glIsProgram()
C Specification
GLuintglCreateProgram(void);
Copyright
Copyright © 2003-2005 3Dlabs Inc. Ltd.
Copyright © 2010-2014 Khronos Group
[FIXME: source] 11/18/2024 GLCREATEPROGRAM(3G)
Description
glCreateProgram creates an empty program object and returns a non-zero value by which it can be
referenced. A program object is an object to which shader objects can be attached. This provides a
mechanism to specify the shader objects that will be linked to create a program. It also provides a means
for checking the compatibility of the shaders that will be used to create a program (for instance,
checking the compatibility between a vertex shader and a fragment shader). When no longer needed as part
of a program object, shader objects can be detached.
One or more executables are created in a program object by successfully attaching shader objects to it
with glAttachShader(), successfully compiling the shader objects with glCompileShader(), and successfully
linking the program object with glLinkProgram(). These executables are made part of current state when
glUseProgram() is called. Program objects can be deleted by calling glDeleteProgram(). The memory
associated with the program object will be deleted when it is no longer part of current rendering state
for any context.
Errors
This function returns 0 if an error occurs creating the program object.
Name
glCreateProgram - Creates a program object
Notes
Like buffer and texture objects, the name space for program 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.
See Also
glAttachShader(), glBindAttribLocation(), glCreateShader(), glDeleteProgram(), glDetachShader(),
glLinkProgram(), glUniform(), glUseProgram(), glValidateProgram()
Version Support
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│ glCreateProgram │ ✔ │ ✔ │ ✔ │ ✔ │ ✔ │ ✔ │ ✔ │ ✔ │ ✔ │ ✔ │ ✔ │ ✔ │
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