SSR Render Loop

ssr.c

for(int Count = 0; Count < 160; Count++)
{
	if(CurrentPosition.x < 0.0 || CurrentPosition.x > 1.0 ||
	   CurrentPosition.y < 0.0 || CurrentPosition.y > 1.0 ||
	   CurrentPosition.z < 0.0 || CurrentPosition.z > 1.0)
	{
		return vec4(0.0, 0.0, 0.0, 1.0);
	}

	//intersections
	float SampleDepth = texture2DLod(tex_depth, CurrentPosition.xy, 0).x;
	
	/*
	if(SampleDepth == 1.0)
	{
		return vec4(0.0, 0.0, 0.0, 1.0);
	}
	*/
	
	float CurrentDepth = CurrentPosition.z;
	
	float Difference = CurrentDepth - SampleDepth;
	
	if(Difference >= 0.0 && Difference < length(ScreenSpaceVector))
	{
		ScreenSpaceVector *= StepRefinementAmount;
		CurrentPosition = OLD_Position;
		NumRefinements++;
		if(NumRefinements >= MaxRefinements)
		{
			SSR = CurrentPosition.xy;
			break;
		}
	}
	
	OLD_Position = CurrentPosition;
	CurrentPosition = OLD_Position + ScreenSpaceVector;
}