When a user launches content examples with -vulkan tessellation will not be working. Everything tessellated will appear as if it has no tessellation. This issue is also occurring in 4.18

Steps to Reproduce


  1. Run <PathToApp>/ContentExamples.exe -vulkan -log -verbose 
  2. Open console and type Open Material_Nodes
  3. Navigate to example 1.12 Tessellation Multiplier
  4. Open console and type Open Material_Properties
  5. Navigate to example 1.8 Tessellation

Expected Outcome: Flat Tessellated and PN Triangles box should have many triangles split up on the box, and TessellationMultiplier should have differing amounts of triangles.
Actual Result: All tessellated boxes are the same as the No Tessellation box.

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Affects Versions4.
Target Fix4.23
Fix Commit6053722
Main Commit6944849
Release Commit6955818
CreatedJan 25, 2018
ResolvedApr 23, 2019
UpdatedJul 25, 2019