Houdini与Nuke灰飞烟灭动画特效制作视频教程 Ash Disintegration – Houdini & Nuke VFX Course

本教程是关于Houdini与Nuke灰飞烟灭动画特效制作视频教程 Ash Disintegration – Houdini & Nuke VFX Course，时长：3小时37分，大小：2.1 GB，MP4高清视频格式，教程使用软件：Houdini，Nuke，附源文件，共13个章节，作者：Voxyde，语言：英语。

这种效果是通过一种方法实现的，这种方法本质上是将两种不同的模拟同时分层运行。

碎裂
首先，我们将使用自定义断裂法对玫瑰几何体进行断裂，该方法结合了常见的 voronoi 工作流程和布尔断裂法。

自定义求解器
在对几何体进行断裂后，我们将运行第一个模拟，对断裂的碎片进行操作。

模拟
在此模拟的基础上，我们将运行第二次模拟，使每块碎裂的几何体变成更小的碎块，并随着时间的推移完全消失。
因此，从本质上讲，地质尝试首先会分解成大块，然后这些大块又会分解成更小的碎块。
模拟之间的无缝过渡。

渲染
设置好所有几何体和特效后，我们将使用 Redshift 渲染几遍。在本节中，我还将介绍如何导出自定义 AOV，如自定义纹理和 houdini 点属性。

Nuke 合成
然后，我们将把所有内容导入 Nuke 来制作最终效果。
在这里，我将介绍如何利用我们生成的 AOV 来完全控制最终效果的各个方面。

下载
下载档案还包括已完成的 Houdini 项目文件（版本 19.0.589）

Welcome to a new Houdini Course: Ash Disintegration

This effect is achieved through a method which is essentially layering two different simulations that run at the same time.

Fracturing

We will start by fracturing the rose geometry, using a custom fracture method, which combines the common voronoi workflow with the boolean fracturing method.

Custom Solver

After we fracture the geometry, we are going to run the first simulation which will operate on our fractured pieces, and we are going to create a

custom solver that drives this simulation.

First Simulation

And then on top of this simulation we will run a second simulation that will make each individual fractured piece turn into even smaller pieces that disappear entirely over time.

So essentially, the geoemtry will first disintegrate into big pieces, and then these pieces will disintegrate into even smaller pieces, and we will be able to control

this transition between simulations seamlessly.

Rendering

After we set up all of the geometry and effects, we will render a few passes using Redshift. In this section I also go over how to export custom AOVs such as custom textures and houdini point attributes.

Nuke Compositing

Then we will bring everything inside of Nuke to create the final result.

Here I go over how to leverage the AOVs that we generated to have complete control over all aspects of the final look.

Downloads

You will have all the geometry required included with the downloads. Everything else that I couldn’t include (like megascans texture) you will be able to find by using the links provided in the links notepad.

The download archive also include the completed Houdini project file (ver. 19.0.589)