Intersect and subtract of 2 overlapped ExtrudePolygon

[neofita]

Hello evryone,
i have a problem aboout 2 overlapped ExtrudedPolygon when i interset or subtract with another ExtrudeShapeCustom

I know from another post that in some case for ExtrudedPolygon is necessary to do the inverse of array but i don t know why so i ve tried different solutions

There are these 3 PG for report my problem:

• the first without inverse of the arrays that creates the ExtrudedPolygons
  Babylon.js Playground

• the second with inverse of both arrays that creates the ExtrudedPolygons
  https://playground.babylonjs.com/#EUCIKC#1

• the thirth with inverse of one array and the other no. This example looks near the solution but not at alla and especially i don’ t know why in some case i have to inverse and in other cases no
  https://playground.babylonjs.com/#EUCIKC#2

Thank you in adcance

[Evgeni_Popov]

Maybe someone can help you on that matter (I know @JohnK is a master of parametric shapes) but in any case you should really try to show up your problem with smaller PGs because such big PGs could discourage some people.

[JohnK]

@neofita

i don’ t know why in some case i have to inverse and in other cases no

From https://doc.babylonjs.com/how_to/parametric_shapes#extruded-non-regular-polygon see

All vectors for shape and holes are Vector3 and should be in the XoZ plane, ie of the form BABYLON.Vector3(x, 0, z) and in counter clockwise order.

If your array happens to be in clockwise order reversing it puts it in counter clockwise order.

[neofita]

I’ ve simplified all in this task

Intersect and subtract of 2 overlapped ExtrudePolygon - #2

Hello everyone, i have a problem aboout 2 overlapped ExtrudedPolygon when i interset or subtract with another ExtrudeShapeCustom I dont understand why the wrench is cutted and why it appear deepest than the quare https://playground.babylonjs.com/#LFWQQK Thank you in advance

Thank you