//	DYNAMIC: "ALPHACLIP"					"0..1"

const float g_AlphaThreshold : register( c0 );

struct PS_INPUT
{
#if ALPHACLIP
	float2 texCoord0	:	TEXCOORD0;
#endif
};

sampler BaseTextureSampler	: register( s0 );

float4 main( PS_INPUT i ) : COLOR
{
	float4 color = float4( 1, 0, 0, 1 );	// opaque alpha....the color doesn't matter for this shader

#if ALPHACLIP
	color = tex2D( BaseTextureSampler, i.texCoord0 );
	clip( color.a - g_AlphaThreshold );
#endif

	return color;
}