csg operation error

[czc98]

const brush1 = new Brush(geometry1); brush1.updateMatrixWorld(); const brush2 = new Brush(geometry2); brush2.updateMatrixWorld(); const evaluator = new Evaluator(); const result = evaluator.evaluate(brush1, brush2, ADDITION); console.log(result);

TypeError: Cannot read properties of undefined (reading 'array')
It is meaning that the brush geometry not be two-manifold?

[gkjohnson]

Please provide a working example of the problem. There's no way to say what the issue is with the information you provided.

[czc98]

stl_models.zip
I just do simple operation of this two stl meshes, but i not work.
if the reason that error is the model not require the two-manifold?

[gkjohnson]

stl_models.zip

This is not a working example. I'm sorry but I cannot take the time to try to recreate your issue. Please provide a useable example with something like jsfiddle or codesandbox that shows the error.

if the reason that error is the model not require the two-manifold?

There is no detection for two manifold geometry in the project. It is the applications responsibility to enforce this.

[gkjohnson]

Closing until we have a reproduction case.