Perforated Metal Look

[Anonymous]

Hello,

Does anyone know how I can emulate a perforated metal look on a wall. It's a dividing wall.

I tried creating a wall and putting a bunch of little circular windows in it, but that was taking forever to generate in 3D.

Any other approaches?

Does anyone have a perforated metal material with an alpha channel???

Thanks

[Dwight]

would that be like this?


BTW: Alpha channels obsolete now.

[Dwight]

LightWorks uses the red channel of an RGB image for transparency when referencing an ArchiCAD image after using the "Match Archiaic Method" button

[Dwight]

and the texture

[Dwight]

Depending on distance, squares might be better....
Combine two shaders:

color - whatever you want
transparency - Wrapped grid

width - horizontal band
height - vertical band
grid size - interval

I just happen to be doing the article on this today for the book. Will post later.

[Anonymous]

What you posted is exactly what I'm looking for, but I don't follow your method.

I know I do something with the Jpeg of the holes, but from there I'm kinda lost.

No alpha channel, wow.

[Djordje]

muddasick wrote:
Does anyone know how I can emulate a perforated metal look on a wall. It's a dividing wall.

Dwight explained the LightWorks approach.

If you have Art•Lantis, have fun with Holes Shader family (standard, comes with the basic installation)

[Dwight]

Mr Moderator: You remind me of the Graphisoft person who, in a very Marie Antoinette way, said, "let them eat cake." Except she meant cake of a human source. And you know what happened to her.

The Graphisoft person actually said, years ago, in response to my complaint that ArchiCAD had bad materials, "Well, they can always buy the Artlantis shaders if they want something better…"

And, back to LightWorks, which is included with ArchiCAD and what this forum is about, there being a perfectly fine Abvent forum at www.abvent.com:

Once you create a material in the infernal engine, it can be transferred to LightWorks by using the "Match With Archiaic Infernal Engine" button.

LightWorks will look at the settings and if you have checked the transparency box for alpha channel, it will emulate that by using the red channel of the texture. Since the holes are black, it understands that they are to be transparent, lacking any red. The jpeg I posted has no alpha channel - but the perfs show in Lightworks

[Djordje]

Dwight wrote:
Mr Moderator: You remind me of the Graphisoft person who, in a very Marie Antoinette way, said, "let them eat cake."

Mr Scribe ...

I said IF

Not meant to belittle LightWorks, or your exquisite efforts.

[Dwight]

Its not you.

There are so many better ways to render than the way Graphisoft has currently implemented LightWorks. I feel that I am an apologist for this, and that every lighting trick "Think Like A Photographer," or material trick "perforated metal" is supplanted by a switch or a button in a more advanced rendering situation.

I am frustrated by comparing what the LightWorks web site shows for a real time preview, radiosity, a fine sketch render engine, and a panorama of global illumination, scenery and lighting setups that make the PROMISE of using LightWorks SO MUCH BETTER than Artlantis - yet plugged directly into our program.

Someday.