An "open-source 3D renderer in just 1,000 lines of code" that just calls DirectX, I would call out, yes. Especially if it was made and released by the people wh

An "open-source 3D renderer in just 1,000 lines of code" that just calls DirectX, I would call out, yes. Especially if it was made and released by the people who make DirectX, at the same time (or days before!) they release DirectX under a proprietary license. Other apps, probably not.