In order to isolate the scalp even more, you can paint out an attribute where you want to generate curves and then override the density with that attribute in the guide groom sop. We'll use Subsurface Scattering, Fuzz, and 2 specular lobes, combined with displacements and bump mapping to achieve a natural looking head in RenderMan version 21. However, I didn't want to place guides on the entire mesh because some of the guides ended up inside her head or too far down her forehead. In this tutorial, we'll use RenderMan's Pixar Surface Material to get a photorealistic render with this (now classic) head scan from Lee Perry-Smith. By then converting it back into polygons, I was able to get a much higher resolution mesh. After creating my selection, I extruded it for thickness and ran a vdb from polygons to convert it to voxels. Rendering the hair Simply select Renderman as the render engine for the scene and Ornatrix hair should appear in the resulting renders. I used a blast node to remove everything but the scalp by simply selecting the faces that I wanted. Renderman is a feature rich, well established renderer developed by Pixar Supported versions Ornatrix is supported in all versions of Renderman 21 and newer.

When I imported the model into Houdini, there were some changes that I needed to make to isolate the scalp and also maintain the accuracy of the collisions. I then sculpted on top of the hand for details. I posed it to match the depressions in the face and imported it into Sculptris. Sculptris does a great job of making major changes to the model without needing to subdivide the entire mesh. The ability to push and pull the model organically was necessary to create the lips and depressions in the face. Sculptris was my software of choice for modeling this project.

Renderman tutorial realistic