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helloluxx Shop — Motion Graphics Training : Cinema 4D : Houdini : After Effects

Houdini Tutorial - Flip Fluid Simulations from helloluxx
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Houdini Training : learn. Jumpstart Vol.5 – Intro to Flip Fluid Simulations

$ 39.00 USD

Get your CG feet wet with Adam Swaab’s ‘Jumpstart’ foray into fluid simulations.

Houdini Training – learn. Jumpstart Vol.5:
Intro to Flip Fluid Simulations from Adam Swaab

In this tutorial you will get your CG feet wet with Adam Swaab’s first ‘Jumpstart’ foray into fluid simulations. You begin by disecting the shelf tools, understanding each node that is created, and then rebuilding the system from scratch, inserting a few of your own customisations. You will look at emission attributes and parameters, discuss how to achieve high resolution details in your sims and see how to get other simulation objects to interact with your fluids. Further in the tutorial you will look at some of the more esoteric parameters of the Flip solver, learning how to create melting, mixing, and expanding fluid simulations.



 

Chapter 01: Introduction

Chapter 02: Use the shelf tools to create an animation flip simulation. Learn how to turn the flip clipping volume into a flip tank and add a collision object. Next go through all the nodes created by the shelf tools, explaining each of the parameters and the reasoning behind their creation.

learn. Houdini Flip Fluid Simulations from helloluxx

Chapter 03: Rebuild the previous example from scratch, ignoring the shelf tools and working node by node. Then look at an alternate way of meshing a simulation, using VDB tools to reshape and finesse the final mesh.

learn. Houdini Flip Fluid Simulations from helloluxx

Chapter 04: In this section begin the dive into the nuts and bolts of the Flip solver. Examine a cross section of a simulation, looking at how particle scale, grid size and reseeding affect the appearance and behavior of a flip simulation. Discuss how to examine the velocity field of a fluid simulation to make sure the simulation is behaving as expected, then take a quick look at collision stickiness, showing how to create a sense of friction as fluid slides over a collision object.

learn. Houdini Flip Fluid Simulations from helloluxx

Chapter 05: In this chapter, create a simple melting effect to illustrate how viscosity affects a simulation. The bottom of your flip bounding box acts as a heat source, warming up the particles near it and causing viscosity to decrease. Learn how to use a multiple solver/SOP solver setup to create a custom melt solver, all while inheriting colour and uv information from the source object.

learn. Houdini Flip Fluid Simulations from helloluxx

Chapter 06: Look at another simple example of mixing fluids of varying densities, showing how to create colour diffusion and mixing between fluids of different colours. See the effect of density on a fluid sim, causing lower density particles to rise above higher density particles.

learn. Houdini Flip Fluid Simulations from helloluxx

Chapter 07: This short section shows an example of using divergence in a fluid sim. Here you will see two different fluids interacting, one with a positive (expansive) divergence and one with a negative (contracting) divergence.

learn. Houdini Flip Fluid Simulations from helloluxx

Chapter 08: In this section explore two different ways of shaping and adding forces to a fluid sim. See how to use volume velocities and gas micro solvers to add forces into a simulation. Then, see how to use particle forces and pop DOPS to affect a flip sim at the particle level.

Chapter 09: Finally, discover a way to tweak fluid meshes when they penetrate through their containers, using VDB tools, invaluable for rendering fluids in glass containers.

learn. Houdini Flip Fluid Simulations from helloluxx


Please Note: This tutorial was created with Houdini 14. Only small interface changes in Houdini version 15.5 will affect any usage of the tutorials.


Houdini Training – learn. Jumpstart Vol.5: Intro to Flip Fluid Simulations

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