Character Clipping Protector
A unity tool to reduce the amount of clipping between clothing layers and characters by hiding areas of the mesh which are occluded by outer layers.
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Works very well, small issues with certain areas such as armpits as described below.
Loading the Example:
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Download the project
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Open the Scene "Character Clipping Test Scene"
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Reset the meshes on the occlusion pawn to default
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Run the "Character Clipping Protector" - Check button - on "HumanMesh_WITHCLIPPINGPROTECTOR"
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Adjust the sliders for differing results
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Requires the packages: Burst, Jobs & Editor Coroutines
Strengths:
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Fast - could be potentially used sparingly realtime depending on the mesh
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Good coverage - Gets most areas and flat/slightly rounded surfaces
Weaknesses:
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Complex areas - Areas such as the armpits/ inner thighs can be an issue due to the huge variance in angles
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For large meshes will cause perforance isues
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Async- must be run in a coroutine
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Only setup for skinned meshes
Usage:
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DO NOT RUN in any pose other than T or A pose - will get varying results
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Setup a specific layer for testing occlusion and set this in the script
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In editor use the "check" option as described above to run the simulation
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To run from code simply set the meshes and then start the RunClippingSimulation coroutine (with optional callback when complete)
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Adjust margin to add "safety" margins where the edges of the mesh occur
Tips:
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ORDER MESHES in terms of layer with the lowest priority first in the inspector (see example)
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Split meshes up if required: The script will do a reasonable job on all areas but manual culling could be required in certain situations (split arms/legs/torso/head etc)
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Calculate all mesh combinations upfront in a loading phase and store the results with the "Caching" feature - will then allow quick culling later during gameplay
Method:
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Creates a seperate collider mesh to test against for each mesh
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Uses the new Raycast command to cast for each vertex on each mesh from the outside in
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Collects results and processes to find areas with overlap
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Creates a new mesh and hides areas with signigicant overlap
Debugging:
- Use the debug options on the tool to show either mesh hits (overlapping zones) or every raycast made.
