欢迎来到新的胡迪尼课程：灰分分解
Welcome to a new Houdini Course: Ash Disintegration
该结果是通过叠加两个同时模拟的过程获得的。
This result is obtained through a procedure that consists of overlaying two simultaneous simulations.
压裂
Fracturing
我们将首先使用一种自定义的压裂方法对玫瑰几何体进行压裂，该方法结合了常见的voronoi工作流和布尔压裂方法。
We will start by fracturing the rose geometry, using a custom fracture method, which combines the common voronoi workflow with the boolean fracturing method.
自定义解算器
Custom Solver
断开几何体后，我们将运行第一个模拟，该模拟将对断开的零件进行操作，我们将创建一个自定义解算器来驱动该模拟。
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.
第一次模拟
First Simulation
然后，在这个模拟的基础上，我们将运行第二个模拟，这将使每个单独的断裂部分变成更小的部分，随着时间的推移完全消失。
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.
因此，从本质上讲，地震学将首先分解成大块，然后这些块将分解成更小的块，我们将能够无缝地控制模拟之间的转换。
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.
渲染
Rendering
设置所有几何体和效果后，我们将使用Redshift渲染几个过程。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。
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合成
Nuke Compositing
然后，我们将把Nuke内部的一切都带入到最终结果中。
Then we will bring everything inside of Nuke to create the final result.
在这里，我将介绍如何利用我们生成的AOV来完全控制最终外观的所有方面。
Here I go over how to leverage the AOVs that we generated to have complete control over all aspects of the final look.
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