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Florian22222

Problem with texturing a heightmap

2 posts in this topic

Hi!

I have a problem with texturing a heightmap with a simple dirt-tile. On every position when the y-coord doesnt change for a few vertices, the texture is getting stretched. Look at the attached pictures. You´ll find a screenshot and the dirttile itself(sometimes it looks confusing)

I´ve used the same code in d3d9 to creating a heightfield and its coordinates, so it cant be that the texture coordinates are the error. I think there´s something in my shadercode that causes this issue.

My effect file:
[CODE]
uniform extern matrix gWVP;
uniform extern Texture2D gTileTex;
SamplerState TextureSampler
{
Filter = MIN_MAG_MIP_LINEAR;
AddressU = WRAP;
AddressV = WRAP;
};
//shader i/o structs
struct VS_OUTPUT
{
float4 Position : SV_POSITION; // vertex position
float2 TexCoord2 : TEXCOORD0; // vertex texture coords
};
VS_OUTPUT RenderSceneVS( float3 Position : POSITION, float2 TexCoord2 : TEXCOORD0 )
{
VS_OUTPUT Output = (VS_OUTPUT) 0;

Output.Position = mul(float4(Position,1.0f),gWVP);
Output.TexCoord2 = TexCoord2;

return Output;
}
float4 RenderScenePS(VS_OUTPUT Input) : SV_TARGET
{
return gTileTex.Sample(TextureSampler,Input.TexCoord2);
}
technique10 T1
{
pass P1
{
SetVertexShader( CompileShader( vs_4_0, RenderSceneVS() ) );
SetGeometryShader( NULL );
SetPixelShader( CompileShader( ps_4_0, RenderScenePS() ) );
}
}
[/CODE]

EDIT: I am using sm5(fx_5_0) for the shader
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The shader code looks fine, have you checked the UV coords being passed in? I've seen wrap have some unexpected results in dx9 when the UV's are off.
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Sorry, I forgot about writing this.
I solved the problem a week ago.
The input layout wasn´t specified right.
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