Yes, Microsoft signed a pretty bad contract with NVidia so it could not publish much since the NV owned all the IP rights. When asked about the "push-buffer" la

Yes, Microsoft signed a pretty bad contract with NVidia so it could not publish much since the NV owned all the IP rights. When asked about the "push-buffer" layout and format MS would plainly tell "We won't prevent you from figuring it but we are prohibited from telling you directly". So everybody did just that, reversed the push-buffer to write their own APIs/debug tools.