

The prototype of the function the renderer has to provide is float2 mdl_adapt_microfacet_roughness(Shading_state_material state, float2 roughness_uv).

* Note: The entries below come directly from the NVIDIA Iray release notes. A separate discussion thread will remain available ( linked below), but the thread itself will be closed for comment so as to avoid the information being buried by the discussion and to provide notification through regular features of the forum software. To address some of these issues and bring more visibility to the changes for those who want/need it, we now split these posts off into their own thread. This same information would also then be reposted when a Public Build was eventually promoted to General Release. In many cases, while the information contained within the posts was/is useful to those that want/need it, it seemed to go unread by many. Since the release of Daz Studio that followed the initial introduction of NVIDIA Iray in Daz Studio ( 4.8 - initial introduction, 4.9 - following release), a list of its changes have typically been made available in the posts that immediately follow the announcement. When a new build of Daz Studio includes a new version of the NVIDIA Iray renderer, the new build of the renderer comes with its own set of bug fixes, new features, adjustments to existing features, etc.
