Quick setup for Static Meshes

1. Sample & Bake a mesh

1. Right-click → Miscellaneous → Data Asset. Choose TUNS Surface Bake. for this example we will name it DA_TUNS_Sphere.
2. Open it. Set your preferred Mesh, Leave Mask Texture empty and UV Channel = 0.
3. Set Sample Bank Size = 1,024, Relaxation Iterations = 64 and Integration Samples Per Point = 32.
4. Click TUNS Bake. Confirm Ready in Status and Sample Count = 1,024. Save.

123

1. 1
   TUNS Bake

   Build and bake down the sample points.
2. 2
   Preview limit

   Only controls the dots drawn in the editor.
3. 3
   Status

   Ready means the bake can now be used in Niagara

2. Connect Niagara

1. Navigate to Plugin content and duplicate the Niagara System into your project: Content/Examples/Systems/NS_TUNS_Comparison_SM
2. Open the duplicate. Disable Before; keep TUNS enabled.
3. In User Parameters, expand BakedSurface. Set Surface to DA_TUNS_Sphere.
4. Set SampleBudget = 1,024 and Flow = 0. SamplingData is already linked to User.BakedSurface.
5. Compile and save. The preview should show dots covering the sphere. Drag the system into your level and test Play.

1

1. 1
   Surface

   Choose the bake, not the source mesh or mask texture.

For a production emitter, follow the static-mesh setup.