I have a problem with the caps at the start and the end of the extrudeshape, it’s not well rendered .
I ve tried the createPolygon to create them after the extrude but the issue is that’s hard to position them and orient them properly since my path is complexe .
I want to try an approch where i get the absolute vertecies at the start and end Caps then create a polygon there, but no succes so far . thx for help in advance
Hello and thank you for being a member of the community!
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I remember that this had been discussed already in this topic with @Deltakosh and @Evgeni_Popov , the problem comes from the fact that your “H” shape is not convex.
It seems that the default CAP generator of BabylonJS is a very simplistic “star” caping. It does something like that :
(Star extrusion toward the center)
While the best would be to have a “smarter” shape closing like that :
(dividing into convex subparts)
I think the best in your case would be to call the extruder without caps, and generate the right caps yourself.
By the way, I had proposed to add such feature, but still, didn’t took the time to deep dive into it
what i did is cheated a bit , instead of one Extrudeshape , i ve done multiple ones to get the result, even if it’s not the best sollution but it solve the issue so far tough
Something weird just happend to the same scene, the extruded segments where parralel to each others , now the extrusion is not that perfect, it like stretching as shown in the picture :
Actually what is happenning is that the shape reference is rotating at the corners but not scaling , so this causes this stretching, i am trying to find a way to apply the needed scale to the shape at the corners depending on the Angle … and back to you gys .
in the mean while if someOne has already face this and fix, i would appreciate to share .
Yes bro with great pleasure, my 1st approche is to use scalefunction that take the returned value and apply it to the shape at each step of the extrude. The issue was that the return value apply a global scale to the shape there is no straight way to apply it only on x for example which we need actually.
So no the next approch i ll try is to modify the shape by updating its verticies which is possible in babylone 6 and above …
I will give a try this night and share with you the result
I ve put this beside for a while now I am back guys to try to fix this issue .
I am using now extrudeShapeCustom that offer rotationFunction and scaleFunction to have more control on the shape on each point from the Path …
however I am stuck on something I can’t find it logic if someOne can help . when i apply a simple rotation using rotationFunction ,the shape is well rotated but only arround the Path direction Axe … if i want to rotate along the vertical Axe regardless the Path orientation , the hole Extrude process get stuck .
Where i am suppose to have the right rotation by returning Quaternion instead of Angle . here’s the playground .
uncomment rotationFunction:rotationFunction, to see the bug.
