topic Re: Shadows in 3D Window in Libraries & objects

Shadows in 3D Window

Anonymous — Wed, 24 May 2023 10:37:59 GMT

Is there a script to turn of an object's shadow in the 3D Window? I know how to script it for the photo renderings, but the object still casts a shadow in the 3D Window.

Re: Shadows in 3D Window

Anonymous — Thu, 05 Aug 2010 21:31:41 GMT

Hello,

You can use the SHADOW ON/OFF keyword as described in the GDL Reference Guide (page 192 in the AC13 version).



SHADOW OFF
BRICK 1, 1, 1

ADDX 2

SHADOW ON
BRICK 1, 1, 1

DEL 1

Hope this helps.

Regards, Juha

Re: Shadows in 3D Window

Anonymous — Thu, 05 Aug 2010 22:59:28 GMT

That code turns off Shadows and Vectorial Sun Shadows in the Photo Rendering Projection Window but the shadow is still there in the 3D Window.

I am trying to do a 3D Window fly-thru with shadows but with selected object's shadow casting turned off.

Re: Shadows in 3D Window

Karl Ottenstein — Thu, 05 Aug 2010 23:42:21 GMT

Ed,

You should edit your Profile (text link near top right corner) to list your AC version/machine/etc - or else include it in your question...

I assume you are talking about the shadows just introduced in AC 14 in the OpenGL window? If so, GS might not have thought about disabling shadows for certain objects there - might be a bug, or might be intentional...

Cheers,
Karl

Re: Shadows in 3D Window

Anonymous — Fri, 06 Aug 2010 00:24:18 GMT

Karl,

Right you are.

I'm trying to generate a fly-thru of a monster project that crashes whenever I turn on shadows in the OpenGL 3D Window. I was hoping there was code to turn off shadows on certain complex objects.

Re: Shadows in 3D Window

Karl Ottenstein — Fri, 06 Aug 2010 03:58:59 GMT

Hi Ed

Thanks for the sig and confirmation. Juha gave the solution for library objects ... for the rendering engines. But, yeah, is the OpenGL behavior you see a feature or a bug? Best to contact tech support and let them check with the developers for you. Won't help in the near term on this project - but if it is an unintended bug, maybe it can get sorted out in a future release.

Cheers,
Karl

Re: Shadows in 3D Window

Anonymous — Sun, 08 Aug 2010 14:47:36 GMT

I suspect that this is a limitation of the OpenGL engine. It may be that the display geometry does not allow for selective shadow casting. I'm no OpenGL expert but this would make sense from a performance standpoint. It's one thing to just cast shadows everywhere and quite another to poll each element on the fly.