I have a deferred rendering system that works well with objects that appear solid and drawn using CounterClockwise culling.

I have a problem with Clockwise culled objects that are supposed to represent hollow that display their inside faces only.

The image below shows a CounterClockwise culled object (left) Clockwise culled object (right).

The Clockwise culled object faces display what would be displayed on the CounterClockwise face. How can I get the lighting to light the inner faces for Clockwise culled objects and continue lighting the outer CounterClockwise faces as normal?

My lighting method is below

    private void DeferredLighting(GameTime gameTime)
    {
        // Set the render target for the lights
        game.GraphicsDevice.SetRenderTarget(lightMap);

        // Clear the render target to (0, 0, 0, 0)
        game.GraphicsDevice.Clear(Color.Transparent);

        // Set the render states
        game.GraphicsDevice.BlendState = BlendState.Additive;
        game.GraphicsDevice.DepthStencilState = DepthStencilState.None;
        game.GraphicsDevice.RasterizerState = RasterizerState.CullCounterClockwise;

        // Set sampler state to Point as the Surface type requires it in XNA 4.0
        game.GraphicsDevice.SamplerStates[0] = SamplerState.PointClamp;

        // Set the camera properties for all lights
        BaseLight.SetCameraProperties(game.ActiveCamera);

        // Draw the lights
        int numLights = lights.Count;

        for (int i = 0; i < numLights; ++i)
        {
            if (lights[i].Diffuse.W > 0f)
            {
                lights[i].Render(gameTime, ref normalMap, ref depthMap, ref sgrMap);
            }
        }

        // Resolve the render target
        game.GraphicsDevice.SetRenderTarget(null);
    }

I have tried adjusting the render states but no combination works for both objects.