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Uniform
=======
.. py:class:: Uniform
Available in :py:meth:`Program.__getitem__`
A uniform is a global GLSL variable declared with the 'uniform' storage qualifier.
These act as parameters that the user of a shader program can pass to that program.
In ModernGL, Uniforms can be accessed using :py:meth:`Program.__getitem__`
or :py:meth:`Program.__iter__`
Methods
-------
.. py:method:: read() -> bytes:
Read the value of the uniform.
.. py:method:: write(data: Any) -> None:
Write the value of the uniform.
Attributes
----------
.. py:attribute:: Uniform.location
:type: int
The location of the uniform.
The result of the glGetUniformLocation.
.. py:attribute:: Uniform.array_length
:type: int
If the uniform is an array the array_length is the length of the array otherwise `1`.
.. py:attribute:: Uniform.dimension
:type: int
The uniform dimension.
.. py:attribute:: Uniform.name
:type: str
The uniform name.
The name does not contain leading `[0]`.
The name may contain `[ ]` when the uniform is part of a struct.
.. py:attribute:: Uniform.value
:type: Any
The uniform value stored in the program object.
.. py:attribute:: Uniform.extra
:type: Any
User defined data.
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