void CameraFadeFarAlpha_float(
//  Base inputs
    float3 positionWS,
    float  CameraInversFarFadeRange,
    float  CameraFarFadeDist,
    float  AlphaIN,
    float AlphaTh,
    out real Alpha

) {
	#if !defined(SHADERPASS_SHADOWCASTER)
    	//Alpha = AlphaIN * saturate( (positionSP.w - CameraFadeDist) * CameraInversFadeRange - Dither32(positionSP.xy / positionSP.w * _ScreenParams.xy ) );
        Alpha = AlphaIN;
    #else
    	float distanceToCam = distance(positionWS, GetCameraPositionWS() );
        //float a = saturate((distanceToCam - CameraFadeDist) * CameraInversFadeRange) * saturate((CameraFarFadeDist - distanceToCam)* CameraInversFarFadeRange);
		float a = saturate((CameraFarFadeDist - distanceToCam)* CameraInversFarFadeRange);
	Alpha = AlphaIN * saturate(a+AlphaTh);
    #endif
}