Adds command line options:
   --invert-y
   --iy
(synonyms) which invert position.Y on vertex shader output.  Handles these cases:
* Direct single variable return
* Member of direct returned struct
* Single variable output parameter
* Member of struct output parameter
API:
    // Enables position.Y output negation in vertex shader
    void TShader::setInvertY(bool invert);
Fixes #1173
		
	
			
		
			
				
	
	
		
			10 lines
		
	
	
		
			106 B
		
	
	
	
		
			GLSL
		
	
	
	
	
	
			
		
		
	
	
			10 lines
		
	
	
		
			106 B
		
	
	
	
		
			GLSL
		
	
	
	
	
	
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// Test Y negation from entry point return
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float4 pos;
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float4 main() : SV_Position
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{
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    return pos;
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}
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