了解如何通过沙子和车辆的互动来创建电影沙漠场景。高级 FX 艺术家 Alvaro Segura 使用 Houdini Indie 演示了这一复杂但有益的模拟。
这个 3 小时的研讨会首先深入探讨 Vellum 颗粒的使用，并将其与 Pyro 模拟相结合，以创建各种沙子纹理，从细小的灰尘状颗粒到更密集的团块沙子。Alvaro 详细介绍了 Vellum 和 Pyro 的关键属性，使艺术家有信心调整这些参数，以在自己的沙子模拟中获得所需的效果。
Alvaro 演示了创建聚集纹理和实现颗粒状、细节丰富的外观的技术，同时还讨论了细小逼真的灰尘的行为。此外，艺术家将学习如何优化碰撞并设计自定义速度场以增强模拟真实感。Alvaro 还介绍了如何设置多个容器并利用 TOP 网络进行楔入以促进重型模拟，并将它们分割成单独的容器以实现高效而强大的混合。在研讨会的最后一部分，Alvaro 详细介绍了如何将这些容器重新组合成单个体积作为速度和密度 VDB，以实现更轻量、优化的体积处理。
通过完成本次研讨会，艺术家将拥有实用的工作流程和技术专长，以将他们的沙模拟提升到专业标准。
该车间采用的是 Turbosquid 公司的 SUV 车型。
Discover how to create a cinematic desert scene with sand and vehicle interactions. This complex yet rewarding simulation is demonstrated using Houdini Indie by Senior FX Artist Alvaro Segura.
This 3-hour workshop begins by delving into the use of Vellum grains and combining them with Pyro simulations to create a variety of sand textures, ranging from fine, dust-like particles to denser clumped sand. Alvaro details the crucial attributes of both Vellum and Pyro, empowering artists with the confidence to tweak these parameters for the desired effects in their own sand simulations.
Alvaro demonstrates techniques for creating clumped textures and achieving a granular, detailed look while also discussing the behavior of fine, realistic dust. Additionally, artists will learn how to optimize collisions and design custom velocity fields for enhanced simulation realism. Alvaro also walks through how to set up multiple containers and leverage TOP networks for wedging to facilitate heavy simulations and segment them into separate containers for an efficient yet powerful mix. In the final leg of the workshop, Alvaro details how to combine these containers back into a single volume as velocity and density VDBs for lighter, optimized volume handling.
By completing this workshop, artists will have practical workflows and the technical expertise to elevate their sand simulations to a professional standard.
This workshop utilizes an SUV car model from Turbosquid.
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