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DX11 Skymap Problem

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[newbie question]
Hello guys,
I'm having a problem with texturing my skybox. I'm trying to load a cube map (.dds format) on top of a box (loaded from .obj).


The picture probably will indicate more advanced users what could be possibly wrong.

My guess is that texture coords have to be fixed.


Vertex Shader

struct VertexType
    float4 position : POSITION;
    float2 texcoord : TEXCOORD0;
    float3 normal : NORMAL;

struct SkymapVertexType    //output structure for skymap vertex shader
    float4 position : SV_POSITION;
    float3 texcoord : TEXCOORD0;

SkymapVertexType SKYMAP_VS(VertexType input)
    input.position.w = 1.0f;
    SkymapVertexType output = (SkymapVertexType)0;

    output.position = mul(input.position, world_matrix);
    output.position = mul(output.position, view_matrix);
    output.position = mul(output.position, projection_matrix);

    output.texcoord = input.position;

    return output;

Pixel Shader

SamplerState sample_type;
TextureCube skymap;
float4 SKYMAP_PS(SkymapVertexType input) : SV_TARGET
    return skymap.Sample(sample_type, input.texcoord);

Loading Texture

    D3DX11_IMAGE_LOAD_INFO load_info;
    load_info.MiscFlags = D3D11_RESOURCE_MISC_TEXTURECUBE;

    ID3D11Texture2D* texture{ nullptr };
    HRESULT hr = D3DX11CreateTextureFromFile(device, filename, &load_info, nullptr,
                                     (ID3D11Resource**)&texture, nullptr);
    if(FAILED(hr)) return false;

    D3D11_TEXTURE2D_DESC texture_desc;

    // Create Resource Shader View

    D3D11_SHADER_RESOURCE_VIEW_DESC resview_desc;
    resview_desc.Format = texture_desc.Format;
    resview_desc.ViewDimension = D3D11_SRV_DIMENSION_TEXTURECUBE;
    resview_desc.TextureCube.MipLevels = texture_desc.MipLevels;
    resview_desc.TextureCube.MostDetailedMip = 0;

    hr = device->CreateShaderResourceView(texture, &resview_desc, &m_texture);


Edited by itseemstobeme

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What color is your clear color? if it's that darkish blue, then it looks to me that the winding order on that triangle is wrong. otherwise it's likely that the texcoords are not mapped correctly along that triangle.

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Hi again,

Suprisingly I forgot to set the proper shaders before drawing it. It's the little things that makes your head spinning the whole day smile.png I need to be more careful. Thanks for your time.



Btw. I had also noticed that in my .obj file the box is moved Y:+10, that's why we see empty blue space below.

Edited by itseemstobeme

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