Having issues adding textures to my model, directx11 - c++

Question

Okay so loading in a model works fine but when I try to add a texture or lighting they become stretched, I think it is having problems sharing vertices. I have tried changing the sampler_desc address as well as messing around with the input layout but no luck. The results
HRESULT Model::CreateTextureSampler(char* filename) {
hr = D3DX11CreateShaderResourceViewFromFile(m_pD3DDevice, filename,
NULL, NULL,
&m_pTexture0, NULL);
if (FAILED(hr)) // Dont fail if error is just a warning
return hr;
D3D11_SAMPLER_DESC sampler_desc;
ZeroMemory(&sampler_desc, sizeof(sampler_desc));
sampler_desc.Filter = D3D11_FILTER_MIN_MAG_MIP_LINEAR;
sampler_desc.AddressU = D3D11_TEXTURE_ADDRESS_WRAP;
sampler_desc.AddressV = D3D11_TEXTURE_ADDRESS_WRAP;
sampler_desc.AddressW = D3D11_TEXTURE_ADDRESS_WRAP;
sampler_desc.MinLOD = 0;
sampler_desc.MaxLOD = D3D11_FLOAT32_MAX;
hr = m_pD3DDevice->CreateSamplerState(&sampler_desc, &m_pSampler0);
if (FAILED(hr)) // Dont fail if error is just a warning
return hr;
}
HRESULT Model::CreateInputLayout()
{
// Create and set the input layout object
D3D11_INPUT_ELEMENT_DESC m_iedesc[] =
{
{ "POSITION", 0, DXGI_FORMAT_R32G32B32_FLOAT, 0,0, D3D11_INPUT_PER_VERTEX_DATA, 0 },
{ "COLOR", 0, DXGI_FORMAT_R32G32B32A32_FLOAT, 0, D3D11_APPEND_ALIGNED_ELEMENT, D3D11_INPUT_PER_VERTEX_DATA, 0 },
{ "TEXCOORD", 0, DXGI_FORMAT_R32G32B32A32_FLOAT, 0, D3D11_APPEND_ALIGNED_ELEMENT, D3D11_INPUT_PER_VERTEX_DATA, 0 },
{ "NORMAL", 0,DXGI_FORMAT_R32G32B32_FLOAT, 0, D3D11_APPEND_ALIGNED_ELEMENT, D3D11_INPUT_PER_VERTEX_DATA, 0 }
};
hr = m_pD3DDevice->CreateInputLayout(m_iedesc, 4, M_VS->GetBufferPointer(),
M_VS->GetBufferSize(), &m_pInputLayout);
if (FAILED(hr)) // Dont fail if error is just a warning
return hr;
m_pImmediateContext->IASetInputLayout(m_pInputLayout);
m_pImmediateContext->IASetPrimitiveTopology(D3D11_PRIMITIVE_TOPOLOGY_TRIANGLELIST);
return S_OK;
}

Answer 1

When I'm looking at your line of code and I see this line here:
"TEXCOORD", 0, DXGI_FORMAT_R32G32B32A32_FLOAT, 0, D3D11_APPEND_ALIGNED_ELEMENT, D3D11_INPUT_PER_VERTEX_DATA, 0 },
You are passing to the input element descriptor for the tex coord with a third parameter of DXGI_FORMAT_R32G32B32A32_FLOAT. You might want to check this flag to see if this is causing your problem.
Normally texture coords are a vec2 object when using simple textures, unless if you are using a 3D Texture.
You might want to change this to DXGI_FORMAT_R32G32_FLOAT, and give the appropriate [S,T] or [P,Q] vertices for the texture file. Textures are normally images stored in memory linearly but are representing a MxN structure.