struct VertexOut
{
	float4 Position				:POSITION;
	float2 TexCoord				:TEXCOORD0;
	float ID					:TEXCOORD2;
	float4 Depth				:TEXCOORD1;
	float PSize					:PSIZE;
		
};


VertexOut VertexProgram(
		  float4 Position   : POSITION,
          float2 TexCoord : TEXCOORD0,
          float4 Color : COLOR0,          
          uniform float4 PSize : state.point.size,
		  uniform float4x4 modelViewProj:state.matrix.mvp
          )
{
	VertexOut Out;
	Out.ID=TexCoord.x;
    Out.PSize =PSize.x*TexCoord.y;    	
	Out.Position = mul(modelViewProj, Position);
 //   Out.Depth=Out.Position.z/2+0.5;
    return Out;
}

void FragmentProgram(		VertexOut In,
						uniform sampler2D BbTexture,
						out float4 Color: COLOR//,
						//out float Depth:DEPTH	
						) 
{	
	int intensity=round(In.ID);
	if(intensity<0)intensity=0;
	
	float thecolor=intensity;
	Color=float4(thecolor,thecolor,thecolor,tex2D(BbTexture,In.TexCoord).r);
	
	/*
	if(tex2D(BbTexture,In.TexCoord).r==0)
	{
		Depth=1;
	}
	else
	{
		Depth=In.Depth;
	}
	*/
}