I am playing around with Softimage for the first time and I am trying to create a DirectX shader and have it visible in the realtime shader viewport.  I can create a shader that simply diffuses everything to green and it will display fine in the viewport.  Where I am having problems is when I select just a single polygon and apply a DirectX shader to it, simply shading it to blue.  When I do that it creates a cluster under the mesh object that shows the applied material.  When shown in the viewport, where there should be a blue polygon on a green cube, all I get is a green cube with a polygon completely missing.  Where the blue polygon should be (or at least where I think it should be) it is not rendering the polygon at all.  I know the shader is not the problem, because the shader setting the single polygon to blue is the same shader that sets the rest of the cube to green.

Am I going about this the correct way?  I read through all the docs on DirectX materials and all the Cluster information I could find an nothing really talks about this.  Well, at least nothing I found.  Any info is appreciated.

Thanks!