float4x4 matWorldViewProj: register(c0);
///////////////////////////////////////////////////
float4 matWorld;
float4 vecViewPos;
///////////////////////////////////////////////////

texture entSkin1;
texture entSkin2;
texture entSkin3;

vector vecSkill41;

float1 mtlSkill1;

struct VS_OUTPUT 
{
	float4 Pos: POSITION;
	float2 texCoord: TEXCOORD0;
	float3 eyeLinear: TEXCOORD1;
//////////////////////////////////////////////////////////
	float4 fresnel: COLOR0;
//////////////////////////////////////////////////////////
};

VS_OUTPUT VS_p0(float4 Pos: POSITION)
{
	VS_OUTPUT Out;

	float4 pos = float4(1 * Pos.x, 1 * Pos.y - 1, 1 * Pos.z, 1);
	float4 pPos = mul(float4(pos.xyz,1), matWorldViewProj);

	Out.Pos = pPos;

	Out.texCoord.x = Pos.x * 0.5;
	Out.texCoord.y = Pos.z * 0.5;

	Out.eyeLinear.x = 0.5 * (pPos.z + pPos.x);
	Out.eyeLinear.y = 0.5 * (pPos.z - pPos.y);
	Out.eyeLinear.z = pPos.z * 1;
///////////////////////////////////////////////////////
float3 PositionWorld = mul(Pos, matWorld); 
float dist=distance(PositionWorld, vecViewPos); 

if (dist<=300) 
{ 
Out.fresnel.xyzw=dist*0.005; 
} 

if (dist>300) 
{ 
Out.fresnel.xyzw=1.0; 
} 
/////////////////////////////////////////////////////////

	return Out;
}

sampler BumpMap = sampler_state 
{
	texture=(entSkin3);
	MAGFILTER = LINEAR;
	MINFILTER = LINEAR;
	MIPFILTER = LINEAR;
};

sampler RefractionMap = sampler_state 
{
	texture=(entSkin2);
	MAGFILTER = LINEAR;
	MINFILTER = LINEAR;
	MIPFILTER = LINEAR;
};

sampler ReflectionMap = sampler_state 
{
	texture=(entSkin1);
	MAGFILTER = LINEAR;
	MINFILTER = LINEAR;
	MIPFILTER = LINEAR;
};

float4 PS_p0( float2 texCoord: TEXCOORD0,float3 eyeLinear: TEXCOORD1, float4 fresnel:  COLOR0) : COLOR //////////////
{
	
	// addiere die Geschindigkeit von vecSkill41 hinzu für Wellenbewegung
	float2 waterCoord = texCoord.xy * 0.001 * vecSkill41;
	
	// die Bumpmap mit der waterCoord Koordinaten
	float4 bump = tex2D(BumpMap, waterCoord) * 2 - 1;
	bump = normalize(bump);

	float2 mid = eyeLinear.xy / eyeLinear.z + bump.xy * 0.1f ;

	// Reflektierte Wasseroberfläche
	float4 reflection = tex2D(ReflectionMap, mid);

	float4 final=reflection; 

///////////////////////////////////////////////////////
float3 watercolor=(0.58,0.65,0.63); //adjust this change water coloring 

final.rgb*=watercolor; 

final.w=(1*fresnel)*0.8; 
////////////////////////////////////////////////////////


	// Output
	return reflection;
}
technique water
{
	pass p1
	{
/////////////////////////////////////////////////////////
 		zwriteenable=false; 
		zenable=true; 
		alphablendenable=true;
/////////////////////////////////////////////////////////
		VertexShader = compile vs_1_1 VS_p0();
		PixelShader = compile ps_2_0 PS_p0();

	}
}