   Model Normals Don't Transform ?
  Hi guys,I transform my model like this:D3DXMATRIXA16 mRotation;D3DXMatrixRotationY(&mRotation,angle);D3DXMATRIXA16 mTranslation;D3DXMatrixTranslation(&mTranslation,...);D3DXMatrixMultiply(&worldMatrix,&mRotation,&mTranslation);...but it doesn't rotate my vertex normals. Is that the way it's supposed to be ?I can transform them right in my vertex shader, is that the normal way of doing things ?Thanks.   
  In your vertex shader you want to multiply your normal by the rotational portion of your world matrix. The easiest way being to cast your world matrix to a 3x3 matrix. Multiply your normal by the 3x3, then renormalize the normal. This isn't a perfect solution but should work for the most part.   