i test that if using D3DCULL_CCW to draw the cube, the color ouside viewport is the same as Clear
but if using D3DCULL_CW, the color ouside viewport is black
i test that if using D3DCULL_CCW to draw the cube, the color ouside viewport is the same as Clear
but if using D3DCULL_CW, the color ouside viewport is black
check out your sky box or sky dome!
You already render somethings on your screen .
Try wire frame .
