The Gnomon Workshop – Houdini Terrain Techniques

在本书中，高级视觉效果艺术家Robby Branham概括介绍了Side FX的Houdini 17中的地形工作流。Houdini的heightfield节点深入展示了如何从头开始创建地形。掩蔽技术用于创建独特的分层表面。演示了实例化和地形复制技术以创建大型景观。创造了几种不同类型的景观，包括雪山、陨石坑、农业梯田等等。对地形进行纹理和着色是在Houdini的咒语中完成的，红移着色网络用于向地形表面添加颜色和微观细节。Houdini的内置合成器被教导使用侵蚀节点的内置属性为高度场创建详细的纹理贴图。Robby演示了地球探险家的卫星数据以及如何从现有的真实世界数据创建地形。“覆盖”属性和“覆盖”字段的“随机”属性是对“覆盖”字段的自然外观的补充。Robby在教程中通过网格创建、纹理、着色、渲染和布局从头开始创建封面艺术地形。封面艺术-核武器组合在整个拍摄过程中被分解，从概念化、预视觉化、资源创建、地形创建、布局、照明、渲染到最终合成。

Duration 3h 40m Project Files Included MP4

The Gnomon Workshop – Houdini Terrain Techniques

Info:
In this title, Senior Visual Effects Artist Robby Branham provides a broad overview of the terrain workflows in Side FX’s Houdini 17. Houdini’s heightfield nodes are shown in depth to demonstrate how to create terrains from scratch. Masking techniques are utilized to create unique and layered surfaces. Instancing and terrain duplication techniques are demonstrated to create large landscapes. Several different types of landscapes are created including a snowy mountain, a meteor crater, agricultural terracing and more. Texturing and shading the terrain is accomplished inside of Houdini’s Mantra, and Redshift shading networks are used to add color and micro details to the terrain surfaces. Houdini’s built in compositor is taught to create detailed texture maps for the height field using the built in attributes from the erosion nodes. Robby demonstrates Earth Explorer’s satellite data and how to create terrains from existing real world data. A tree scattering and randomization workflow is covered that takes advantage of the Height Field node’s attributes to complement the natural look of the landscapes. Robby creates the cover art terrain from scratch in the tutorial through mesh creation, texturing, shading, rendering, and layout. The cover art Nuke composite is broken down throughout the entire shot process, from concepting, previsualization, asset creation, terrain creation, layout, lighting, rendering and final compositing.