Save position as property

There are many ways to get save the position of the vertices on a mesh as data. It can be saved on the mesh as vertex color, as custom uv attribute or as a texture.

• Position as Vertex Color
  • Gotcha
    • When we bring in the

Sequencer

• Animating In Sequencer
  • info
    • If we want to animate the parameter driving the VAT WPO material we can do the following
    • Note that when using the workflow below, the animated parameter gets associated with the slot
      so we can change the matrial and as long as the new material has a parameter named the same the
      animation will be animated
  • Drag the static mesh actor to sequencer
  • on the sm click…

General

Ray tracing & Path tracing

• VAT & ray / path tracing
  • Select the mesh
  • In the details panel start typing “world…”
  • Rendering > Advanced > Evaluate World Position in Ray Tracing : On
    • This is required to be able ti use ray traced shadows
    • It is also needed if you want to use the path tracer

SideFX Labs - VAT

• Installation
  • The VAT Vertex Animation Texures is a part of the SideFX Labs toolset
    • Make sure that the SideFX Labs shelf is loaded
    • You can press the Update Toolset button on far left on the shelf to update
  • In the Out context add a Labs Vertax Animatiin Textures node
  • On the node, click the “Real-Time Shaders” section.
    • Click the Unreal Engine Content Plugin & Guides button to open up the dir.
    • Follow the guides to installation and use

Sequencer

• Control VAT display frame with Sequencer
  • Make sure that VAT material is assigned to the mesh
  • Add mesh to sequencer.
  • In sequencer, click to + on the reight hand side to add a StaticMeshComponent
  • On the added static mesh component add a the material Material Parameters > Slot: <Your material name>
  • On the material add the Display Frame
  • Set the start and end display frame keframes
  • RMB click on the Display Frame track > Edit > (Key Interpolation) Linear