Dynamic Mesh Occluder - Troubleshooting

Problem	Likely Cause	Solution
Detect Occlusion greyed out	Body/clothing meshes not assigned, or Paint Mode active	Assign Body Skeletal Mesh and at least one Clothing Mesh. Exit Paint Mode.
Nothing is hidden after detection	Meshes don't overlap, or Proximity Threshold too low	Check both meshes share the same origin and skeleton. Increase Clothing Proximity Threshold.
Too much is hidden — skin shows through clothing	Threshold too low or cone angle too wide	Raise Occlusion Threshold (e.g. 0.85), lower Cone Half Angle, or increase Edge Erosion Rings.
Floating visible patches inside clothing	Island removal not catching all patches	Increase Max Visible Island Size and enable Close Enclosed Regions.
Noisy or jagged boundary	Not enough post-processing	Increase Smoothing Iterations (2–5), Dilation Rings (1–2), and Edge Erosion Rings (1–2).

Problem	Likely Cause	Solution
Clothing doesn't match body pose	Different skeleton	All clothing meshes must use the same skeleton as the body.
Blueprint node returns false / no swap	Mismatched clothing meshes	Use the exact same mesh assets in Blueprint as used during detection. Matching is order-independent.
Save button greyed out	Output Path empty, no detection/paint data, or Paint Mode active	Fill in Output Path. Run detection or paint triangles. Exit Paint Mode before saving.

Problem	Solution
Animation preview won't play	Assign an `AnimSequence` in Preview Animation settings. Must use the same skeleton as the body mesh.
Want to hide geometry without clothing	Assign body mesh only, enter Paint Occlusion, paint the triangles you want hidden, then Save.

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Problem

Likely Cause

Solution

Detect Occlusion greyed out

Body/clothing meshes not assigned, or Paint Mode active

Assign Body Skeletal Mesh and at least one Clothing Mesh. Exit Paint Mode.

Nothing is hidden after detection

Meshes don't overlap, or Proximity Threshold too low

Check both meshes share the same origin and skeleton. Increase Clothing Proximity Threshold.

Too much is hidden — skin shows through clothing

Threshold too low or cone angle too wide

Raise Occlusion Threshold (e.g. 0.85), lower Cone Half Angle, or increase Edge Erosion Rings.

Floating visible patches inside clothing

Island removal not catching all patches

Increase Max Visible Island Size and enable Close Enclosed Regions.

Noisy or jagged boundary

Not enough post-processing

Increase Smoothing Iterations (2–5), Dilation Rings (1–2), and Edge Erosion Rings (1–2).

Problem

Likely Cause

Solution

Clothing doesn't match body pose

Different skeleton

All clothing meshes must use the same skeleton as the body.

Blueprint node returns false / no swap

Mismatched clothing meshes

Use the exact same mesh assets in Blueprint as used during detection. Matching is order-independent.

Save button greyed out

Output Path empty, no detection/paint data, or Paint Mode active

Fill in Output Path. Run detection or paint triangles. Exit Paint Mode before saving.

Problem

Solution

Animation preview won't play

Assign an AnimSequence in Preview Animation settings. Must use the same skeleton as the body mesh.

Want to hide geometry without clothing

Assign body mesh only, enter Paint Occlusion, paint the triangles you want hidden, then Save.