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Houdini Vertex Animation Texture Tool

Updated: Jun 8, 2021

One way to get dynamic simulation out of Houdini to Realtime Engine using Vertex Caching is to use VAT.

VAT: vertex animation textures

Exporting an FBX with textures that will actually do the vertex deformations within the vertex shader of the real-time renderer.

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General workflow overview


Fluid simulation> Mesh generation> Normal >Cache> Export use VAT

Output: FBX + .EXR textures

Import to Engine, Setting up the UE4 material/ Unity Shader


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Example

Vertex animation Fire effect


Breakdown

  • Flame (vertex animation)

  • Smoke

  • Embers

  • Heat distortion

  • light emission

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Step by step creation


To be continued...



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