AdvancedThe fragment glsl shader source.
Optionalnamethe name of the program, defaults to 'pixi-program'
Optionalpreferredthe preferred fragment precision for the shader, this may not be used if the device does not support it
Optionalpreferredthe preferred vertex precision for the shader, this may not be used if the device does not support it
OptionaltransformThe vertex glsl shader source.
The options for the gl program