[MOrtAl44444]

Что не так или я уже в глаза долблюсь!!)

-- Шейдер --

float4x4 world;
float4x4 view;
float4x4 proj;

float maxHeight = 128;

texture displacementMap;
sampler displacementSampler = sampler_state
{
Texture = <displacementMap>;
MipFilter = Point;
MinFilter = Point;
MagFilter = Point;
AddressU = Clamp;
AddressV = Clamp;
};

texture sandMap;
sampler sandSampler = sampler_state
{
Texture = <sandMap>;
MipFilter = Linear;
MinFilter = Linear;
MagFilter = Linear;
AddressU = Wrap;
AddressV = Wrap;
};

texture grassMap;
sampler grassSampler = sampler_state
{
Texture = <grassMap>;
MipFilter = Linear;
MinFilter = Linear;
MagFilter = Linear;
AddressU = Wrap;
AddressV = Wrap;
};

texture rockMap;
sampler rockSampler = sampler_state
{
Texture = <rockMap>;
MipFilter = Linear;
MinFilter = Linear;
MagFilter = Linear;
AddressU = Wrap;
AddressV = Wrap;
};

texture snowMap;
sampler snowSampler = sampler_state
{
Texture = <snowMap>;
MipFilter = Linear;
MinFilter = Linear;
MagFilter = Linear;
AddressU = Wrap;
AddressV = Wrap;
};

struct VS_INPUT {
float4 position : POSITION;
float4 uv : TEXCOORD0;
};
struct VS_OUTPUT
{
float4 position : POSITION;
float4 uv : TEXCOORD0;
float4 worldPos : TEXCOORD1;
float4 textureWeights : TEXCOORD2;
};

float textureSize = 1024.0f;
float texelSize = 1.0f / 256.0f; //size of one texel;

float4 tex2Dlod_bilinear( sampler texSam, float4 uv )
{

float4 height00 = tex2Dlod(texSam, uv);
float4 height10 = tex2Dlod(texSam, uv + float4(texelSize, 0, 0, 0));
float4 height01 = tex2Dlod(texSam, uv + float4(0, texelSize, 0, 0));
float4 height11 = tex2Dlod(texSam, uv + float4(texelSize , texelSize, 0, 0));

float2 f = frac( uv.xy * textureSize );

float4 tA = lerp( height00, height10, f.x );
float4 tB = lerp( height01, height11, f.x );

return lerp( tA, tB, f.y );
}


VS_OUTPUT Transform(VS_INPUT In)
{
VS_OUTPUT Out = (VS_OUTPUT)0;
float4x4 viewProj = mul(view, proj);
float4x4 worldViewProj= mul(world, viewProj);


float height = tex2Dlod_bilinear( displacementSampler, float4(In.uv.xy,0,0)).r;

In.position.y = height * maxHeight;
Out.worldPos = mul(In.position, world);
Out.position = mul( In.position , worldViewProj);
Out.uv = In.uv;
float4 TexWeights = 0;

TexWeights.x = saturate( 1.0f - abs(height - 0) / 0.2f);
TexWeights.y = saturate( 1.0f - abs(height - 0.3) / 0.25f);
TexWeights.z = saturate( 1.0f - abs(height - 0.6) / 0.25f);
TexWeights.w = saturate( 1.0f - abs(height - 0.9) / 0.25f);
float totalWeight = TexWeights.x + TexWeights.y + TexWeights.z + TexWeights.w;
TexWeights /=totalWeight;
Out.textureWeights = TexWeights;


return Out;
}

float4 PixelShader(in float4 uv : TEXCOORD0, in float4 weights : TEXCOORD2) : COLOR
{
float4 sand = tex2D(sandSampler,uv*;
float4 grass = tex2D(grassSampler,uv*;
float4 rock = tex2D(rockSampler,uv*;
float4 snow = tex2D(snowSampler,uv*;
return sand * weights.x + grass * weights.y + rock * weights.z + snow * weights.w;
}

technique GridDraw
{
pass P0
{
vertexShader = compile vs_3_0 Transform();
pixelShader = compile ps_3_0 PixelShader();
}
}

-- Код в Xors3D --