Since i am bored i get you started a bit:
float4x4 WorldViewProj;
float4x4 World;
texture r0_tex;
sampler r0_samp = sampler_state
{
Texture = <r0_tex>;
MIPFILTER = LINEAR;
MAGFILTER = LINEAR;
MINFILTER = LINEAR;
};
texture r1_tex;
sampler r1_samp = sampler_state
{
Texture = <r1_tex>;
MIPFILTER = LINEAR;
MAGFILTER = LINEAR;
MINFILTER = LINEAR;
};
texture r2_tex;
sampler r2_samp = sampler_state
{
Texture = <r2_tex>;
MIPFILTER = LINEAR;
MAGFILTER = LINEAR;
MINFILTER = LINEAR;
};
texture r3_tex;
sampler r3_samp = sampler_state
{
Texture = <r3_tex>;
MIPFILTER = LINEAR;
MAGFILTER = LINEAR;
MINFILTER = LINEAR;
};
texture r4_tex;
sampler r4_samp = sampler_state
{
Texture = <r4_tex>;
MIPFILTER = LINEAR;
MAGFILTER = LINEAR;
MINFILTER = LINEAR;
};
texture r5_tex;
sampler r5_samp = sampler_state
{
Texture = <r5_tex>;
MIPFILTER = LINEAR;
MAGFILTER = LINEAR;
MINFILTER = LINEAR;
};
struct VERTEX
{
float3 Pos : POSITION;
float3 Normal : NORMAL;
float2 TexCoord : TEXCOORD0;
};
struct VS_OUTPUT
{
float4 Pos : POSITION;
float3 PosWorld : TEXCOORD0;
float3 NormalWorld : TEXCOORD1;
float2 TexCoord : TEXCOORD2;
};
struct PS_OUTPUT
{
float4 Color : COLOR0;
};
void VertexProgram( in VERTEX IN, out VS_OUTPUT OUT )
{
OUT.Pos = mul( float4(IN.Pos, 1.0f), WorldViewProj );
OUT.PosWorld = mul( float4(IN.Pos, 1.0f), World );
OUT.NormalWorld = mul( float4(IN.Normal, 0.0f), World );
OUT.TexCoord = IN.TexCoord;
}
void PixelProgram( in VS_OUTPUT IN, out PS_OUTPUT OUT )
{
float r0TexCoordScale = 1.0f;
float r1TexCoordScale = 2.0f;
float r2TexCoordScale = 2.0f;
float r3TexCoordScale = 2.0f;
float r4TexCoordScale = 2.0f;
float r5TexCoordScale = 16.0f;
float4 r0 = tex2D( r0_samp, IN.TexCoord * r0TexCoordScale );
float4 r1 = tex2D( r1_samp, IN.TexCoord * r1TexCoordScale );
float4 r2 = tex2D( r2_samp, IN.TexCoord * r2TexCoordScale );
float4 r3 = tex2D( r3_samp, IN.TexCoord * r3TexCoordScale );
float4 r4 = tex2D( r4_samp, IN.TexCoord * r4TexCoordScale );
float4 r5 = tex2D( r5_samp, IN.TexCoord * r5TexCoordScale );
r1 = r1 * r0.x;
r2 = lerp( r2, r1, r0.y );
r3 = lerp( r3, r2, r0.z );
r0 = lerp( r4, r3, r0.w );
r5 = r5 * r0;
OUT.Color = float4(r5.xyz, 1.0f);
}
technique TerrainTech
{
pass p0
{
VertexShader = compile vs_3_0 VertexProgram();
PixelShader = compile ps_3_0 PixelProgram();
}
}
1. Note that i have done this by hand, so it might contain typos.
2. You must add your lightning calculations.
3. Might not work as i did not test it.
!
