Скачать или смотреть Katana and RenderMan Look Dev: City Scene Part 2

This lesson is part 2 of a 3 part demonstration of how to shade and light a city block in Katana and RenderMan. In this section, we cover how to use baked occlusion and curvature textures to drive procedural aging on a layered shader of dirt, chipped paint, and brick. My apologies for the poor audio quality and sync, by the end of the video, there’s about a 50 second lag. Also, this video contains a HUGE error: when switching form bake render branch to the final render brach, I did not copy the OpScript which set the baked texture file names, or the CEL for the material assign which assigned shaders at the leaf geometry level. This meant every render was using live and not baked occlusion and curvature, and was thus both noisier and slower than they should have been. In part 3 I correct this mistake. Sorry!


Part 1:    • Katana and RenderMan Look Dev: City Scene ...  
Part 2:    • Katana and RenderMan Look Dev: City Scene ...  
Part 3:    • Katana and RenderMan LookDev: City Scene P...  
Final:    • City Shading Lesson: Procedural shading in...  

Disclaimer: This video is a recorded rehearsal for a lecture I gave at the Filmakademie Baden-Wuerttemberg in July 2017, and is not an official tutorial from Pixar or The Foundry. It was made using RenderMan 21.5 and Katana 2.5 on a 2015 macbook pro running bootcamp, which predates the dramatic improvements in live rendering planned for RenderMan 22. Not having much experience with screen capture on windows, you'll have to excuse the audio dropouts, and loss of sync. These caveats aside, I still feel there some value in posting these rehearsals given the need for documentation/instruction in these areas.