0 thickness slab-wall-layers

0 thickness layers are useful in order to control paints and other ~0 thickness elements for calculations, BOQ etc.

I believe solving Z-index of 0 thickness elements is in the right direction - even though I’ve not tested in external real time renderers.

Walls by default have higher priority than slabs in intersections.

BUT as you can see the 0 thickness slab layer does not respect this priority and the interference function is not working well.

0 thickness layers should either be kept as function and must be working well or should be removed entirely in order VA users know what strategy they should follow - for example giving a minimum thickness such as 1 mm, which is way too problematic for snapping reasons or should have finish material attached to the substrate-insul layer with the normal thickness such as 10cm.

I am now in front of another desicion - in terms of strategy - should I change ALL va styles on by one, in order to remove the 0 thickness layers, and point the layer below to the desired material and abandon the optimal strategy

OR

keep it as it is with the hope that it is something that can be fixed by VA def team soon, like 5-6 days tops, for the upcoming submission we have next week?

Those decisions and back & forth actions, keep us away from being productive IMO. This topic has been discussed in the past - I think i had post something about it, if i am not wrong about it.

Do you have an estimation on when is it going to be fixed? Or 0-thickness is something you might drop in the future?

of course I could change the slab-boundary, but then I were about to loose connectivity and updatability with the grid-guides. Guides is the only way to have a fully parametric model, which is another discussion. But I am not willing to fix all slabs because of the 0-thickness-bug.

Bugs at z-indexing while in realistic mode for wall-0-thickness-layers too. Part of the wall has the right 0-thickness-layer material and other part the substrate’s material

Same for ceilings

Is there any chance that the above bugs are going to be fixed soon or not? Do you have any estimation on it?

Hi @GabrielB can you attach a sample file so we can better understand these issues? if you can just provide a file with the involved geometry only, it would be a great help.

Fi @fsalla this morning I changed all VA-wall-slab styles in order not to use 0-thickness layers. I’ll see if any backup has those 0-thickness layers otherwise I will re-insert those 0-thickness layers at my spare time, and I will send it to you by e-mail.

Zero thickness layers is a bad idea, they introduce Z fighting a 3D rendering and floating point precision issue, although i have used them too to hide in hidden mode sections the vertical lines between walls and concrete columns, since my wall styles do not have plaster layers and VA does not yet have LOD capabilities.