I had the same propblem and solved this problem with method “AddExtrudedSegments”.You can refer to the usage of menhod "AddExtrudedSegments" in "SimpleDemo"(Source\Examples\WPF.SharpDX\SimpleDemo)
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I had the same propblem and solved this problem with method “AddExtrudedSegments”.You can refer to the usage of menhod "AddExtrudedSegments" in "SimpleDemo"(Source\Examples\WPF.SharpDX\SimpleDemo)