Creates a texture projection shader; a shader that projects images onto a surface from a number of source cameras.

Inputs:
Surface representation	CSIRO::Rendering::SurfaceRepresentation
Cameras	CSIRO::DataExecution::ObjectDictionary	Dictionary of cameras, where each will be used to project its associated image.
Images	CSIRO::DataExecution::ObjectDictionary	Dictionary of images; one associated with each camera.
Alpha	int	Alpha value for the shader [0-255]
Use lighting	bool	Enable lighting effects on the final rendered surface
Use texture alpha	bool	(Effective only when blend method is 'Additive') Uses the stored alpha value in each texture for blending rather than the fixed value of the 'Alpha' input.
Blend method	CSIRO::Rendering::TextureProjectionShader::BlendMethod	Determines how overlapping images are blended together. Additive: Each image will be rendered using the alpha value provided, overlaps will accumulate additively. Average: Image areas that overlap will be averaged.
Outputs:
Shader	CSIRO::Rendering::TextureProjectionShader