Elevational shadow diagrams

[Yvonne]

What's the best way to set up elevational shadow diagrams in AC25? 

[Kevin Lee]

yay, my fav topic 🙂 shadow 

we used to have an option to copy and paste the shadows using the old internal engine but unless I'm wrong, they took it away from us since the release of "Graphic override"

I don't think it's possible thru ArchiCAD22+ but I've managed to replace shadow elevations submissions with 3D axo diagrams. (councils were happy with the outcomes).  However, I would love to know if there is an option other than keep downgrading to Archicad 21. 

[Barry Kelly]

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@Kevin Lee wrote:

we used to have an option to copy and paste the shadows using the old internal engine but unless I'm wrong, they took it away from us since the release of "Graphic override"

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It is all still the same.

The 'Internal' engine is now called 'Vectorial' in the 3D styles.

You can still place a 2D marquee on your 3D view and copy just the shadows if you want.

This allows you to paste them onto an elevation and you can control the shadows by placing in a layer you can turn on or off.

Just use 'Look to Perpendicular' to get a square on elevation view in 3D.

Then copy the shadows and paste in a corresponding elevation view.

Otherwise just turn shadows on in the elevation settings.

Downside of this is because it is an elevation setting, you can not save a view with shadows on and another view with shadows off - as you can if you copy & paste them from a 3D view.

Barry.

[Kevin Lee]

Copying and paste yes but you can’t get the shadow cast from behind the camera anymore.  The elevation shadow requires you to demonstrate how much overshadowing happens from the proposed design. 

https://community.Graphisoft.com/t5/Wishes-forum/shadows-on-adjoining-properties-elevation/m-p/77524...

The workaround that was posted by the dev doesn’t work and bug hasn’t fixed since 2019. 

[Barry Kelly]

Ah, shadows generated from elements behind the elevation/section view.

That wasn't made clear in the original post if that is what Yvonne is after.

I saw a video on MyCI (I think) a little while ago demonstrating this.

I don't recall how old it was or what version of Archicad it was done in.

Basically it was as described in the link you provided.

I will have to see if I can find it.

Barry.

[GraemeB]

I have been so annoyed by this problem for years. I have to save my projects back to AC19 to do elevation shadows of neighbouring properties. Since AC20, the "copy 3D options" no longer works properly. I think the "overlapping polygons" option was broken in AC20 and never fixed.