Coding Club Of Competitive Programmers

Drawing coordinates system axes in corner of screen void CDEMView::DrawSomeBox() { // Define the needed matrices - object world, view and project D3DXMATRIX matObjectWorld; D3DXMatrixIdentity (&matObjectWorld); // object world matrix D3DXMATRIX matView; D3DXMatrixIdentity (&matView); // view matrix D3DXMATRIX matProjection; D3DXMatrixIdentity (&matProjection); // projection matrix // Get the needed matrices _device->GetTransform(D3DTS_VIEW, &matView); _device->GetTransform(D3DTS_PROJECTION, &matProjection); // Get the viewport D3DVIEWPORT9 viewport; _device->GetViewport(&viewport); // Get the center point of the object D3DXVECTOR3* p_centerPoint = BoxCenterVector; // this is from an external variable // Get the point on the creen that is the screen projection of the object D3DXVECTOR3 projectPoint; D3DXVec3Project(...