topic Re: live 3d section video? in Visualization

live 3d section video?

Anonymous — Thu, 11 May 2023 12:34:12 GMT

Is there a way, in AC11 or any other program, to take a model (made in AC11) and create a rendered movie of a section plane moving through the building?

In effect, much like moving a section plane through a model in SketchUp, but with the graphical output rendered rather than like SketchUp...

Re: live 3d section video?

Anonymous — Thu, 15 Nov 2007 06:51:46 GMT

I think you are looking for "Create fly through". Search in help menu how it works.

Re: live 3d section video?

Link — Thu, 15 Nov 2007 07:56:58 GMT

You can't do it in ArchiCAD, but any decent animation package should be able to do it. 3D Studio for example.

Chers,
Link.

Re: live 3d section video?

Dwight — Thu, 15 Nov 2007 08:50:45 GMT

With all due respect, I believe this CAN be done, but not with the simplicity and not as "live" as in Sketchup.

"Live, Sort-Of"

In the 3D OpenGL view, your "section line" would be a large block used to SEO the target object. You'd pull the block around and push it into the object where you wanted a peek. This could be quite slow depending on the complexity of the model.

"Animation, More-Or-Less"

I suspect that with a little GDL, this large block could be moved to SEO the model, being moved through the rebuilt-every-frame model with code linked to the animation frame like we do with the opening door trick.

Any GDL experts want to tackle this one with a short script for a parametric block with a displacement link??

Re: live 3d section video?

Anonymous — Thu, 15 Nov 2007 09:05:11 GMT

Ah, sorry, missunderstanding your question, I think Dwight is on the right way. I think it could be done with GDL and the part in GDL where you have a part that coop with SEO but isn't visible to the eye. And a timevalue that make the GDL object change size on time-axis.

Re: live 3d section video?

Anonymous — Thu, 15 Nov 2007 09:16:14 GMT

Whew...this is all overwhelming to me....Im not that advanced a user yet. I hate to be a bother but could I perhaps get a more mid-level explaination?
I think I somewhat get the main concept: each frame would have the section plane move just a fraction more, correct? I know I can manage this, but once you get into the cameras, key frames, etc stuff then I get a bit comfused as Im just in the past day or two beginning to explore this feature.

Thanks for all the input!

Re: live 3d section video?

Dwight — Thu, 15 Nov 2007 09:24:43 GMT

Kid: Relax.

The coding trick i describe is too advanced for you right now.

Just play with using a big slab to chop your model using the Solid Element Operation to get the point of how this is done. Read the manual for this useful trick.

Somebody - maybe even me - will come up with the code solution and might make a simple object to solve the problem for everyone.

But not tonite, eh?

Re: live 3d section video?

Anonymous — Thu, 15 Nov 2007 09:33:00 GMT

Yes indeed.

I believe I can just do as you say, then rendering each frame with, say, a 1" move or so, then compile the files into a video. Certainly more tedious but shouldn't be too difficult overall. Good enough until I can manage my way around scripts and all that jazz.

Thanks for the help!

Re: live 3d section video?

Dwight — Thu, 15 Nov 2007 09:35:52 GMT

Excellent Archicad Anonymous attitude!

"One frame at a time"

I would love to see the result.

Re: live 3d section video?

Anonymous — Thu, 15 Nov 2007 09:49:20 GMT

Ill post here when its done...may be a few years but ill get it

Thanks again!

Re: live 3d section video?

Link — Thu, 15 Nov 2007 11:45:48 GMT

Yes, I should have been more clear. It can't be easily done in ArchiCAD. I wonder if that wins the longest workaround award?

I thought about using the Section Tool in 3D from the Special menu, as well as a solid op, but both methods seemed a bit far fetched. Guess I was wrong!

Cheers,
Link.

Re: live 3d section video?

Anonymous — Thu, 15 Nov 2007 17:58:05 GMT

I remembered in the GDL cookbook 3 There is a short piece of code that uses a moving cutplane to cut a building pre-saved as a library part.

It's in section 2, page 193 if that's any help.

It might be a good starting point for someone to add extra control to?

Re: live 3d section video?

Thomas Holm — Thu, 15 Nov 2007 21:09:12 GMT

aggie463 wrote:
Is there a way, in AC11 or any other program, to take a model (made in AC11) and create a rendered movie of a section plane moving through the building?

In effect, much like moving a section plane through a model in SketchUp, but with the graphical output rendered rather than like SketchUp...

Artlantis Studio will do it like you describe it.

Re: live 3d section video?

Anonymous — Thu, 15 Nov 2007 21:18:32 GMT

Thomas wrote:
Artlantis Studio will do it like you describe it.

Is there somewhere I can read up on how? If its Artlantis im sure its fairly simple. Thanks!

Re: live 3d section video?

David Collins — Fri, 16 Nov 2007 07:01:12 GMT

Link wrote:
I wonder if that wins the longest workaround award?

Definitely. The Ray Harryhausen achievement award.

Another possibility would be to render one frame for every foot or so of the section and run the views in an automated slide show with a dissolve transition between the slides. Powerpoint, maybe.

Artlantis is the way to go for a full animation. Apparently, the Clipping Box camera parameter can be animated in the timeline. Haven't done it myself, but I think it would be pretty painless. You would set the clipping box in one position at the start of the timeline and then set it's final position at the end. Artlantis would interpolate the movement in between based on the length and frame rate of the animation. As usual with Artlantis, documentation on this is very thin. Even "The Missing Book" touches on it only very lightly.

Re: live 3d section video?

Thomas Holm — Fri, 16 Nov 2007 07:23:19 GMT

aggie463 wrote:
Thomas wrote:
Artlantis Studio will do it like you describe it.
Is there somewhere I can read up on how? If its Artlantis im sure its fairly simple. Thanks!

THe problem with Artlantis is the lack of documents. What you do is turn on and set the position (in a 2D view) of the relevant Clipping Plane at the beginning and the end of the animation (as well as other transitions you may want). Artlantis Studio makes all the in-betweens for you.

Re: live 3d section video?

Anonymous — Sun, 18 Nov 2007 08:37:50 GMT

aggie463 wrote:
Is there a way, in AC11 or any other program, to take a model (made in AC11) and create a rendered movie of a section plane moving through the building?

In effect, much like moving a section plane through a model in SketchUp, but with the graphical output rendered rather than like SketchUp...

maybe little late , and out of topic ... but this could be achieved in Artlantis - Studio using clipping box .

Re: live 3d section video?

Djordje — Sun, 18 Nov 2007 17:38:34 GMT

aggie463 wrote:
Whew...this is all overwhelming to me....Im not that advanced a user yet. I hate to be a bother but could I perhaps get a more mid-level explaination?
I think I somewhat get the main concept: each frame would have the section plane move just a fraction more, correct? I know I can manage this, but once you get into the cameras, key frames, etc stuff then I get a bit comfused as Im just in the past day or two beginning to explore this feature.

Thanks for all the input!

I distinctly remember doing exactly this in GDL in Archicad 6.o or 6.5 ... but for the life of me, I don't remember HOW ...

The animation part is simple - you just rebuild for each frame - but the cutting plane moving a distance for each frame is another thing. Obviously I forgot my GDL ... and no, no SEOs at that time.

AAAARGH! I am getting old ... can someone check whether there is a CUTPLANE GDL command?

Re: live 3d section video?

Dwight — Sun, 18 Nov 2007 18:47:25 GMT

I'm trying to drift a wireframe block having magical SEO powers through the model using the current frame count [N_] as a displacement factor.

The 3D script looks like this:

dispx = N_
Addx dispx
block a,b,zzyzx

The block disappears after one frame. Duh.

Help us get our own "Clipping Box"

Re: live 3d section video?

Laszlo Nagy — Mon, 19 Nov 2007 11:45:16 GMT

Djordje wrote:
AAAARGH! I am getting old ... can someone check whether there is a CUTPLANE GDL command?

Yes, it needs to be done with the CUTPLANE command the way Djordje described.