topic Re: GDL Objects from 3DS file in Visualization

GDL Objects from 3DS file

Anonymous — Thu, 11 May 2023 10:31:23 GMT

Can anyone tell me why the materials on GDL objects created from a 3ds file render differently to the materials settings? How do I fix or get around this problem?

Comments appreciated

Scooter

ps I have attached an example

Notice the stretched image over each segment

Re: GDL Objects from 3DS file

Dwight — Sat, 19 Aug 2006 05:21:19 GMT

Archicad doesn't adapt mapping to curved irregular surfaces well.

Can you show me what you were expecting the surface to do?

Re: GDL Objects from 3DS file

Anonymous — Sat, 19 Aug 2006 06:02:01 GMT

Hi Dwight, Thanks for the reply.

This is not the exact texture I want to use but it best represents what I want the material to do. Here is an example of the same material rendered in the previous pic but on a flat surface.

Re: GDL Objects from 3DS file

Dwight — Sat, 19 Aug 2006 06:04:35 GMT

So you DON'T want the material to follow the contours of the curved form?

Re: GDL Objects from 3DS file

Anonymous — Sat, 19 Aug 2006 06:06:42 GMT

Yes I want the texture to follow the contours

Re: GDL Objects from 3DS file

Dwight — Sat, 19 Aug 2006 06:14:23 GMT

I'm confused - you are showing a curved surface where the wood grain follows the contours, more-or-less, and seem to be unhappy with it. Is this supposed to be "Bent wood?"

At any rate, there's no solution to controlling the texture map against a non-rectilinear surface in Archicad - you takes what you gets, eh?

There's a GDL command where mapping direction can be controlled, but there is no command to address curved, bulging surfaces.

My advice is to apply a texture without obvious direction and accept the limits of Archicad mapping.

Re: GDL Objects from 3DS file

Anonymous — Sat, 19 Aug 2006 06:28:02 GMT

I should have mentioned this earlier.

The first image is of a roof form 60 m in length.

The second image is a close up to verify the texture.

I am having problems applying the texture to a correct scale and also the direction. When changing the 3d texture direction in Archicad it just doesn't change.

Re: GDL Objects from 3DS file

Dwight — Sat, 19 Aug 2006 06:33:10 GMT

Do you mean changing the direction in the material dialog box or with the alignment tools?

You are rendering in LightWorks?

Are you sure to transfer the angle change to Lightworks?

Re: GDL Objects from 3DS file

Anonymous — Sat, 19 Aug 2006 06:37:30 GMT

Do you mean changing the direction in the material dialog box or with the alignment tools?

With the alignment tools

You are rendering in LightWorks?

Yes

Woulg you like if I sent you an example of the form?

Re: GDL Objects from 3DS file

Dwight — Sat, 19 Aug 2006 06:39:18 GMT

Try using the material dialog to rotate the texture in the material because you can't alter the mapping direction of an object like this using the alignment tools.

Re: GDL Objects from 3DS file

Anonymous — Sat, 19 Aug 2006 06:49:15 GMT

That is a good suggestion, however the roof form is made from various segments and each segment is applying its own direction. I am trying to achieve a uniformity accross the roof. Perhaps I need to seperate each individual piece as their own object and own material to gain more control. Another alternative is converting the 3ds file to dxf (3D) and importing it as an object then, this I will try and get back to you.

Re: GDL Objects from 3DS file

Dwight — Sat, 19 Aug 2006 06:51:41 GMT

Swell. Remember that the more objects you have, the more origins you have to swing..... but I am not convinced that Archicad has the chops to map these curves.

Re: GDL Objects from 3DS file

Anonymous — Sat, 19 Aug 2006 07:06:56 GMT

Here is the dxf version. Not happy with the result. I think I am going to resolve to photoshop (render as plain surface and texturise in Photoshop). Thanks for your input Dwight.

Re: GDL Objects from 3DS file

stefan — Tue, 22 Aug 2006 08:33:29 GMT

Scooter wrote:
Here is the dxf version. Not happy with the result. I think I am going to resolve to photoshop (render as plain surface and texturise in Photoshop). Thanks for your input Dwight.

The DXF file will not carry over the texture mapping...
3ds is your best bet. You might display a picture of the original 3ds file, since the first image you showed seemed to have a full mapping in place.