Houdini Vertex Animation Texture Tool

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...