Reflection using Stencil Buffer

I follow the technique from the book "Introdction to 3D Game Programming with DirectX 9.0" by Frank D. Luna but gets an unusual result:

The issue is with the culling mode I think. The inside of the cube is actually being draw instead of the outside reflected. The process follows(ignoring transformation for now):


cd_pCamera->SetPosition( 10.0f, 5.0f, -10.0f );
cd_pCamera->Update();

Matrix4x4f MatWorld;
MatWorld.MakeIdentity();
cd_pRenderer->SetWorld( MatWorld );
cd_pMesh->Render();

//render mirror
cd_pRenderer->SetTexture( 0, 0 );
cd_pRenderer->RenderPrimitive( cd_VSMirror, PT_TRIANGLE_STRIP, 0, 2 );

//--Apply reflection process--//
cd_pRenderer->EnableStencil( true );
cd_pRenderer->SetStencilFunction( CMPFUNC_ALWAYS );
cd_pRenderer->SetStencilRef( 0x1 );
cd_pRenderer->SetStencilMask( 0xffffffff );
cd_pRenderer->SetStencilWriteMask( 0xffffffff );
cd_pRenderer->SetStencilZFail( STENCILOP_KEEP );
cd_pRenderer->SetStencilFail( STENCILOP_KEEP );
cd_pRenderer->SetStencilPass( STENCILOP_REPLACE );

cd_pRenderer->EnableZWrite( false );
cd_pRenderer->EnableAlphaBlending( true );
cd_pRenderer->SetSourceBlend( BLENDM_ZERO );
cd_pRenderer->SetDestBlend( BLENDM_ONE );

cd_pRenderer->RenderPrimitive( cd_VSMirror, PT_TRIANGLE_STRIP, 0, 2 );

cd_pRenderer->EnableZWrite( true );

cd_pRenderer->SetStencilFunction( CMPFUNC_EQUAL );
cd_pRenderer->SetStencilPass( STENCILOP_KEEP );

//clear depth buffer
cd_pViewport->Clear( false, true, false );

cd_pRenderer->SetSourceBlend( BLENDM_DESTCOLOR );
cd_pRenderer->SetDestBlend( BLENDM_ZERO );

cd_pRenderer->SetCullMode( CM_CW );
MatWorld.MakeTranslation( Vector3f(0.0f, 0.0f, 8.0f) );
cd_pRenderer->SetWorld( MatWorld );
cd_pMesh->Render();

cd_pRenderer->EnableStencil( false );
cd_pRenderer->EnableAlphaBlending( false );
cd_pRenderer->SetCullMode( CM_CCW );
//--//

I specify the cube geometry like so: DirectForce Model //ID txt //Txt for text, bin for binary Version{1} //Version MaterialCount{1} //Number of materials MeshCount{1} //Number of meshes Material{ 1.000000, 1.000000, 1.000000, 1.000000; //Diffuse r, g, b, a 1.000000, 1.000000, 1.000000, 1.000000; //Ambient r, g, b, a 0.000000, 0.000000, 0.000000, 0.000000; //Specular r, g, b, a 0.000000, 0.000000, 0.000000, 0.000000; //Emissive r, g, b, a 0.000000; //Specular power "cloud.tga"; //Texture filename } Mesh{ //Mesh 0; //Material index 3; //Vertex format: 3 - PN1TC 24; //Vertex count 12; //Triangle count Vertices{ -1.0, -1.0, -1.0, 0.0, 0.0, -1.0, 0.0, 1.0; -1.0, 1.0, -1.0, 0.0, 0.0, -1.0, 0.0, 0.0; 1.0, -1.0, -1.0, 0.0, 0.0, -1.0, 1.0, 1.0; 1.0, 1.0, -1.0, 0.0, 0.0, -1.0, 1.0, 0.0; 1.0, -1.0, 1.0, 0.0, 0.0, 1.0, 0.0, 1.0; 1.0, 1.0, 1.0, 0.0, 0.0, 1.0, 0.0, 0.0; -1.0, -1.0, 1.0, 0.0, 0.0, 1.0, 1.0, 1.0; -1.0, 1.0, 1.0, 0.0, 0.0, 1.0, 1.0, 0.0; -1.0, 1.0, -1.0, 0.0, 1.0, 0.0, 0.0, 1.0; -1.0, 1.0, 1.0, 0.0, 1.0, 0.0, 0.0, 0.0; 1.0, 1.0, -1.0, 0.0, 1.0, 0.0, 1.0, 1.0; 1.0, 1.0, 1.0, 0.0, 1.0, 0.0, 1.0, 0.0; -1.0, -1.0, 1.0, 0.0, 1.0, 0.0, 0.0, 1.0; -1.0, -1.0, -1.0, 0.0, 1.0, 0.0, 0.0, 0.0; 1.0, -1.0, 1.0, 0.0, 1.0, 0.0, 1.0, 1.0; 1.0, -1.0, -1.0, 0.0, 1.0, 0.0, 1.0, 0.0; -1.0, -1.0, 1.0, -1.0, 0.0, 0.0, 0.0, 1.0; -1.0, 1.0, 1.0, -1.0, 0.0, 0.0, 0.0, 0.0; -1.0, -1.0, -1.0, -1.0, 0.0, 0.0, 1.0, 1.0; -1.0, 1.0, -1.0, -1.0, 0.0, 0.0, 1.0, 0.0; 1.0, -1.0, -1.0, 1.0, 0.0, 0.0, 0.0, 1.0; 1.0, 1.0, -1.0, 1.0, 0.0, 0.0, 0.0, 0.0; 1.0, -1.0, 1.0, 1.0, 0.0, 0.0, 1.0, 1.0; 1.0, 1.0, 1.0, 1.0, 0.0, 0.0, 1.0, 0.0; } Triangles{ 0, 1, 2; //Vertex indices 2, 1, 3; 4, 5, 6; 6, 5, 7; 8, 9, 10; 10, 9, 11; 12, 13, 14; 14, 13, 15; 16, 17, 18; 18, 17, 19; 20, 21, 22; 22, 21, 23; } } This is the custom file format I defined for my engine, but you get the idea. Any idea on what I'm doing wrong?

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