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Sfpiano

DX9, matrices

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I have no idea why my code isn''t working properly. IT runs, but the image won''t rotate. Here''s my matrices code: VOID SetUpMatrices(){ D3DXMATRIXA16 matWorld; //World Matrix D3DXMATRIXA16 matView; //View Matrix D3DXMATRIXA16 matProj; //Projection Matrix //Set up world matrix D3DXMatrixRotationY(&matWorld, timeGetTime()/150.0f); g_pD3DDevice->SetTransform(D3DTS_WORLD, &matWorld); //Set up view matrix D3DXMatrixLookAtLH(&matView, &D3DXVECTOR3(0.0f, 3.0f, -5.0f), &D3DXVECTOR3(0.0f, 0.0f, 0.0f), &D3DXVECTOR3(0.0f, 1.0f, 0.0f)); g_pD3DDevice->SetTransform(D3DTS_VIEW, &matView); //Set up projection matrix D3DXMatrixPerspectiveFovLH(&matProj, D3DX_PI/4, 1.0f, 1.0f, 100.0f); g_pD3DDevice->SetTransform(D3DTS_PROJECTION, &matProj); } here''s the whole thing: http://sfpiano.netfirms.com/DX9mat.zip

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Your vertex format has the RHW flag specified which tells D3D that it doesn''t need to apply the transformation matrices to the vertices - A vertex format with RHW is you telling D3D "I''ve already transformed these vertices, you don''t need to - just draw them".

Check out the tutorials which come with the SDK, in particular the "matrices" one - you''ll notice that all the earlier tutorials use RHW, but as soon as they need to apply matrices they drop the RHW flag from the FVF code and vertex data...

--
Simon O''Connor
Creative Asylum Ltd
www.creative-asylum.com

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