RVT Displacement Shader Complexity in UE5

Development Rendering
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Hi everyone,

I’m working with Runtime Virtual Textures (RVT) Displacement in Unreal Engine 5, and I’m trying to understand its impact on Shader Complexity.

  1. How much does RVT Displacement increase shader complexity compared to using RVT alone (without displacement)?
  2. How does RVT Displacement affect shader complexity compared to traditional displacement methods (e.g., tessellation or virtual heightfield)?
  3. Are there any best practices for optimizing performance when using RVT Displacement?
  4. What tools or debugging techniques can help analyze the performance cost of RVT Displacement in a scene?

Any insights or experiences would be greatly appreciated! Thanks in advance.