add world matrix

add view matrix
add projection matrix

GDP/D3D9/Mesh.cpp

@@ -2,6 +2,10 @@
 #include "Utilities.h"
 #include "Vertex.h"
 
+#include <DirectXMath.h>
+
+using namespace DirectX;
+
 UINT Mesh::init(IDirect3DDevice9* pD3DDevice)
 {
     UINT error = 0;
@@ -12,6 +16,13 @@ UINT Mesh::init(IDirect3DDevice9* pD3DDevice)
     error = createIndexBuffer(pD3DDevice);
     CheckError(error);
 
+    // identity matrix
+    XMMATRIX identityMatrix = XMMatrixIdentity();
+    XMFLOAT4X4 worldMatrix;
+    XMStoreFloat4x4(&worldMatrix, identityMatrix);
+    D3DMATRIX* pWorldMatrix = reinterpret_cast<D3DMATRIX*>(&worldMatrix);
+    _worldMatrix = *pWorldMatrix;
+
     return 0;
 }
 
@@ -25,6 +36,7 @@ void Mesh::render(IDirect3DDevice9* pD3DDevice)
     pD3DDevice->SetStreamSource(0, _pVertexBuffer, 0, _vertexStride);
     pD3DDevice->SetFVF(FVF);
     pD3DDevice->SetIndices(_pIndexBuffer);
+    pD3DDevice->SetTransform(D3DTS_WORLD, &_worldMatrix);
 
     // 2. draw call
     //pD3DDevice->DrawPrimitive(D3DPT_TRIANGLELIST, 0, _vertexCount / 3);