CLIP_EPSILON
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constCLIP_EPSILON:0.00001=1e-5
Defined in: decal/clip.ts:51
How close to a face of the box a vertex may be and still count as on it.
A projector placed so its box ENDS at the surface puts every receiver vertex exactly on a face, where the last bit of the transform decides it: a floor at y=0 came out ±6e-16 either side, and half the decal was clipped away.