DirectX 11.0 世界变换

Question

当我将世界 XMMatrix 作为身份矩阵传递时，我试图在世界空间中渲染一个立方体，立方体被渲染得很好：

但是当我尝试向世界矩阵添加平移和缩放因子时 我明白了：

/************************ TRANSFORM.CPP *********************/
m_position = { 0.0f,0.0f,0.0f };
m_scale = { 1.0f,1.0f,1.0f };   

DirectX::XMStoreFloat4x4(&m_matrix_translation , 
DirectX::XMMatrixTranslation(m_position.x, m_position.y, m_position.z));
DirectX::XMStoreFloat4x4(&m_matrix_scalar,DirectX::XMMatrixScaling(m_scale.x, m_scale.y, m_scale.z));

 /************************* RENDER.CPP ***********************************/

DirectX::XMMATRIX view = gp_MainCameraH->GetXM_View();
DirectX::XMMATRIX world = GetXM_Scalar() * GetXM_Translation(); // if this is kept as Identity matrix , the cube gets rendered fine ( first image)
DirectX::XMMATRIX proj = gp_MainCameraH->GetXM_Projection();

DirectX::XMMATRIX vp = view * proj;
DirectX::XMMATRIX wvp = world * vp;
// Set the constant buffer of the shader
RenderStateManager::GetEffectVariable("gWorldViewProj")->SetMatrix(reinterpret_cast<float*>(&(wvp)));

Answer 1

问题在于变换类，它正在创建空白世界矩阵。