Mantra Surface Shader确实很棒，但是如果你希望创建你自己的shader，或者你不希望使用在PHOTOSHOP中创建的BITMAP图片作为材质，我们在本教学中将带领大家学习VOP SHOPS，创建程序化的Shader。我们将研究VOPS，学习照明与表面模型。还有如何将参数提升到用户级别，让用户能够在界面中使用它们。

教师介绍:
Ari Danesh是一位有12年大学教学经验的视觉特效师与交互式设计师。他最近在UCLA Extension, Moorpark College, 还有CSUN，Ai Hollywood教授HOUDINI，他当前专注的是流程化建模与动画，粒子系统，动力学系统，还有植物仿真。Ari Danesh是SideFX的HOUDINI讲师。

Using the Mantra Surface Shader is great but what if you want to create your own custom look or what if you do not want to use bitmaps created in Photoshop as your material. This week we dive into VOP SHOPs and create a procedural shader from scratch. We will explore the VOPs the nodal equivalent to the VEX language. Will learn about the lighting and surface model. How to promote parameters to the user level and tweak are user interface.

Ari Danesh is a Visual FX artist and Interactive Designer with 12 years experience teaching at the University level. He has taught at UCLA Extension, Moorpark College, and most recently CSUN (California State University at Northridge) and Ai Hollywood. His current focus is in Procedural Modeling and Animation, Particle Systems, Dynamics and Plant Simulation. Ari Danesh is a SideFX Houdini instructor.