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Modeling
About Archicad's design tools, element connections, modeling concepts, etc.

Stairs with bloated polycount due to complex underside shape

schagemann
Advocate

We are wondering if anyone has a solution to the high poly count of the current stair tool, basically it creates a highly complex underside to each stair resulting in a bloated polycount per stair.250903 23068_250828_CD_Main_01.pln 000253 Large.jpeg250903 23068_250828_CD_Main_01.pln 000257 Large.jpeg

 

 

 

 

 

The Polycount reduces significantly when you switch the display mode to something even more questionable...

 

Unfortunately, most of our projects are large-scale, thus we often have dozens, if not hundreds, of stairs, which is why low poly count matters to us and obviously it would be beneficial if it would show a realistic formwork shape as well.... unless we are missing something?

macinteract
Design Technology Managers - all  on macOS | since AC 6
Archicad Framework > Smart Template 28
Smart Tree, Transmittal and Universal Label plus other smart GDL Objects
1 REPLY 1
Barry Kelly
Moderator

As soon as you add winding treads, you will get a curved base, as the stair tries to average out the position of the base plane a bit like a spline does to approximate the curves.

 

There are no good solutions to prevent this.

You can 'split' the structure and create a flat base for the winding section, but the flight in and out will still be slightly curved.

Or you can create separate stairs for the flights and winders,

This will give you flat undersides to the flights and you can adjust the base of the winders.

 

See this old post ... https://community.graphisoft.com/t5/Modeling/monolithic-Stair-with-winder-gives-a-curved-bottom/m-p/...

 

Barry.

One of the forum moderators.
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