topic Re: Advice on Rendering in Visualization

Advice on Rendering

Anonymous — Thu, 11 May 2023 10:07:52 GMT

Hi, I'm a student, pretty new to Archicad, but I've picked it up quite easily so far.

I have seen this rendering in a book, and was wondering how I could achieve this in Archicad (or Artlantis or any other program).

[I suppose it's kinda like the render of that when you go in to edit curtain wall mode.]

Thanks

Re: Advice on Rendering

Bricklyne Clarence — Sun, 11 Sep 2011 20:14:11 GMT

This question should probably be in the Presentation and renderings section.

In any case, that looks like an Occlusion render (or Ambient occlusion render in full), and I don't think you can do it straight out of ArchiCAD (or at least I don't know of how you would do it with Lightworks settings) and I'm not certain how you achieve it in Artlantis, but I know it's standard in most other rendering packages like 3ds Max which has a special material and preset for rendering this way - depending on which plugin, Vray or Mental ray, that you use - and also in Maya which has the preset built right into the render settings.

But I guess you could sort of fake it in Lightworks or Artlantis by using a plain or default grey material for the entire scene, and then eliminate any direct or harsh lights (like a Sun or sun light object) and instead light the scene with a neutral white HDRI or skydome.

The Ambient Occlusion render appears the way it does because it doesn't use any actual lighting on the scene and instead uses an algorithm that illuminates the scene by considering how close polygons or objects in the scene are to each other to 'light up' the scene.

Re: Advice on Rendering

Laszlo Nagy — Mon, 12 Sep 2011 12:34:29 GMT

There was a tip at one time by someone here who said that you should create a white material with index #1 in a brand new project. That should be your only defined material. Then just create many more by duplicating it until you have hundreds of material all defined this same white.
Then save this as a PLN or save an AAT file from the Attribute Manager.

Then go to your project you want to achieve this effect in. Save its attribute set in an AAT file, then bring in that other PLN or AAT and replace all materials with the materials in that PLN or AAT. This is why you have to have hundreds of materials defined there so that it replaces all materials used in your project.

When you are done you can bring back the original materials from the other saved AAT file.

Re: Advice on Rendering

Karl Ottenstein — Mon, 12 Sep 2011 16:15:24 GMT

The old tip:
http://archicad-talk.graphisoft.com/viewtopic.php?p=117641#117641

But, you said it more clearly, Laszlo. 🙂

Re: Advice on Rendering

Anonymous — Sat, 17 Sep 2011 10:41:44 GMT

Thanks for the advice.

Re: Advice on Rendering

Sightline — Fri, 04 Nov 2011 00:07:52 GMT

When you have just one material like that you got to have a sky light with GI and sun disabled, or area lights, or a dome with a grid of soft lights or an ambient occlusion channel in order to differentiate surfaces that are parallel to each other. Otherwise it would look too plain

Regards,

Diego Torres

Re: Advice on Rendering

Fran_ois Chatelain — Fri, 04 Nov 2011 06:39:49 GMT

Another way is to save the entire model as an object, uncheck the "use object material" in the object settings and select an appropriate one in the pull down menu underneath 😉
Re-save the model and overwrite (or not) the object as needed.

Cheers
Francois

Re: Advice on Rendering

Anonymous — Fri, 04 Nov 2011 15:51:08 GMT

With C4D with one material, add ambient oclusion (tweak how darker you want with the slider) and GI or Physics render... superb results.

Re: Advice on Rendering

Karl Ottenstein — Fri, 04 Nov 2011 15:55:05 GMT

François wrote:
Another way is to save the entire model as an object, uncheck the "use object material" in the object settings and select an appropriate one in the pull down menu underneath 😉
Re-save the model and overwrite (or not) the object as needed.

Brilliant (as always), François!

Re: Advice on Rendering

Sightline — Fri, 04 Nov 2011 15:58:52 GMT

Another way is to save the entire model as an object, uncheck the "use object material" in the object settings and select an appropriate one in the pull down menu underneath Wink
Re-save the model and overwrite (or not) the object as needed.

That's a great solution. I Agree

Re: Advice on Rendering

Sightline — Fri, 04 Nov 2011 16:04:39 GMT

Here is a solution with VrayforC4D, override materials (except glass) and ambient occlusion.

If you want to have a scaled model kind of looking, just add depth of field.

Diego Torres

Re: Advice on Rendering

Anonymous — Sun, 06 Nov 2011 18:51:14 GMT

In cinema there is a trick to do this without change materials... make a multilayer render and in photoshop disable all except ilumination, ao, and shadow layers. With this way you obtain a normal render and an all white render.