A shader or an instance of the
SKShader class is an object that represents an Open Graphics Library Embedded Systems (OpenGL ES) or (GLES). It is a fragment shader, which is an algorithm that modifies the drawing behavior of the node that it is applied to.
Open Graphics Library (OpenGL) is an application programing interface that utilizes the Graphics Processing Unit (GPU) to render graphic elements.
You can use the effect shown in the following screenshot by applying shaders:
In order to apply a shader to a node, we need to create a
SKShader instance from a
fragment shader algorithm and assign it to the
shader property ...