Understand the fundamentals of Bxdf plugins for RenderManĀ® 21+, both the technical details and API architecture. The main goal of the book is to enable technical artists, hobbyists, and students in using the noncommercial (NCR), free RenderManĀ® edition.
RenderManĀ® is an industry standard for rendering software. It has been used for every Pixar film to date and numerous other projects. RenderManĀ® 21, and all subsequent versions, use Monte Carlo path tracing. This change has necessitated the use of C++ plugins in place of the RenderMan Shader Language (RSL). Because of this, writing Bxdfs now requires knowledge of Monte Carlo integration, probability density functions, and the RenderManĀ® C++ API.
Essential Guide to RenderManĀ® Shading Plugin Development specifically addresses writing RenderManĀ® C++ materials. It explores the mathematical models of representative Bxdfs while drawing parallels, when helpful, to earlier RSL implementations. It also includes an overview of Integrators, providing further context for modern RenderManĀ® programmable shading.
What You Will Learn
- C++ development for Bxdfs
- Fundamentals of the rendering equation
- Monte Carlo integration
Who Is This Book For
Beginner plugin writers for RenderManĀ®, such as technical artists, students, or hobbyists who may already have experience with RSL or another shader language. More experienced C++ developers without knowledge of RenderManĀ® or Monte Carlo path tracing will benefit from the content as well. While some prior experience in computer graphics is helpful, the book provides background and references for further study.