topic Re: texture alignment in Visualization

texture alignment

Anonymous — Thu, 11 May 2023 10:36:04 GMT

Im trying to make a 2D image render in 3D, so I can do a siteplan overlay onto a 3D render. What I've done so far is this: I took the image, overlayed it in 2D as a figure, so that I could get the right alignment, and dimensions, then I traced the outline of the figure with a slab, with a 1" thickness. Then I created a material with the image as the texture, and put in the appropriate dimensions. The problem Im running into is this: First off I cannot get it to stay in 1x1 sample mode, so its not lining up correctly in 3D... to make my problem easier to understand, since I am by no means a wordsmith

This is what it looks like in 2D with the figure overlayed, to make sure everything lines up ok:

Re: texture alignment

Anonymous — Tue, 04 Oct 2005 16:43:14 GMT

Here are the material settings, with the smaple selection outlined, this is where I can't get it to change to 1x1 ( when I change it, hit ok, and then come back to the material settings it's back at 2x2)

Re: texture alignment

Anonymous — Tue, 04 Oct 2005 16:44:46 GMT

this is what it looks like in 3D, with the misaligned texture...

if anyone has any ideas, I'd really appreciate it...

cheers,
dan

Re: texture alignment

Djordje — Tue, 04 Oct 2005 17:13:16 GMT

Daniel wrote:
Im trying to make a 2D image render in 3D

If you have not gone the famous Lioness by DNC way already, fire up your ArchiFacade and make the object lying down. Works every time.

Oh, yes ... the picture object can lie flat, too. It is called Carpet in the standard International library

Re: texture alignment

Anonymous — Tue, 04 Oct 2005 20:21:21 GMT

Dan

Carpet sounds good, but if you want to continue mapping the texture the scale needs to be the size of your overall site (how far is 3600' x 4800' in real numbers?). The 2x2 preview is only to show the texture repeating, it does not mean it will be scaled this way, but yes, annoying that it defaults to 2x2 every time. If you were to check the orientation box I have highlighted the repeat would be with the same image, not mirrored.
Looks like you also need to align your texture (Edit - Align 3DTexture - Set Origin) so it starts in the correct place. You need to do this in 3D window.
Hope this helps.

Re: texture alignment

Anonymous — Wed, 05 Oct 2005 13:17:45 GMT

s2art wrote:
Dan
Looks like you also need to align your texture (Edit - Align 3DTexture - Set Origin) so it starts in the correct place. You need to do this in 3D window.
Hope this helps.

ahhhh... I wasn't aware of this command, it's precisely what I was looking for. And yes, the 2X2 default is annoying, and somewhat misleading (if you're as slow as I am anyway )

cheers,
dan

Re: texture alignment

Anonymous — Wed, 05 Oct 2005 14:52:54 GMT

hmm... when I set the origin, it doesnt seem to actually do anything... Shouldn't it move the texture on the slab? Also, I tried using the carpet object, but it wont allow me to make it larger than 3280'-10 3/32" and the site is 3600'x4815'

any ideas?
Dan

Edit: just to make sure I'm using the align tool correctly: I go into 3D, select the slab, go to edit->align 3d texture->set origin, then i click on the point where I want the texture map to begin (im assuming this would be the lower left hand corner of the texture, so i click on the lower left hand corner of my slab)

Re: texture alignment

Anonymous — Wed, 05 Oct 2005 19:48:30 GMT

Daniel wrote:
Edit: just to make sure I'm using the align tool correctly: I go into 3D, select the slab, go to edit->align 3d texture->set origin, then i click on the point where I want the texture map to begin (im assuming this would be the lower left hand corner of the texture, so i click on the lower left hand corner of my slab)

Sounds right... still not working?
Recently Link sent me a few of his tutorials in PDF, one of which was an ingenius way of mapping a texture to a site. If you ask him nicely I'm sure he'll send it to you too, it may be of some help to you, although I haven't used it myself yet.

Cheers

Re: texture alignment

Anonymous — Thu, 06 Oct 2005 14:23:39 GMT

thats odd... If I align the texture, and then set directin, it does nothing... until I save the changes, close AC, and reopen it.. then the changes are shown

cheers,
dan

Re: texture alignment

Djordje — Thu, 06 Oct 2005 14:25:54 GMT

Daniel wrote:
thats odd... If I align the texture, and then set directin, it does nothing... until I save the changes, close AC, and reopen it.. then the changes are shown

Did you also rebuild the 3D window?

Re: texture alignment

Anonymous — Thu, 06 Oct 2005 15:17:12 GMT

looking back on it, I dont think I did.. But when I just re-opened the project and moved the origin to see if rebuild would work.. I didn't need to because the origin moved instantly

cheers,
dan

Re: texture alignment

Anonymous — Thu, 06 Oct 2005 18:02:14 GMT

Just in case anyone was curious, now that it's all lines up, this was kind of the look I was shooting for, kind of an interesting mix between hand rendering, and computer... (the site plan was printed out, had coloured, and then scanned back into the computer as an image)

cheers,
dan

Re: texture alignment

Karl Ottenstein — Thu, 06 Oct 2005 20:08:45 GMT

Nicely done, Dan. I like the effect of the semi-transparent masses for the buildings, too.

Karl

Re: texture alignment

Anonymous — Thu, 06 Oct 2005 20:20:15 GMT

Nice work Dan, looks great.
Could I suggest, though, that you get you building shadows in the same direction as the trees. Sorry to be a pain.

Keep up the good work!

Re: texture alignment

Anonymous — Fri, 07 Oct 2005 02:43:23 GMT

gosh.. what a nit picker actually I noticed that after I posted it, and corrected it

cheers,
dan

Re: texture alignment

__archiben — Fri, 07 Oct 2005 03:51:33 GMT

i would also go as far as saving out the linework and text as a DWG and opening it as an object: place it so that it's floating marginally off of the slab you are applying the hand-shaded texture to and you'll not have to work about the badly anti-aliased text and linework . . . call me a nit-picker if you will . . .

~/archiben

Re: texture alignment

__archiben — Fri, 07 Oct 2005 03:53:44 GMT

. . . . and place transparent tree objects over the shaded trees . . .

~/archiben

Re: texture alignment

Anonymous — Fri, 07 Oct 2005 13:55:44 GMT

the nit picker comment was sarcasm... I just realised I should probably say that... so no one thinks Im a jerk

Archiben: I like both of those ideas.. a lot, the aliased text really bothered me, but it's odd, because I've gone back and taken a look at it, and if I render with the internal engine... the text looks great. EDIT: I just re-read your post, and the DWG idea can't work, because that text is actually on the hand rendered image.

cheers,
dan :

Re: texture alignment

Anonymous — Mon, 10 Oct 2005 12:47:59 GMT

that antialiasing got me too...
I need it on buildings, but the site image looked much more convincing before AC-LW.
I got a question too...
how can I get rid of that `dirty` effect on lower half of the objects?

the material I`m usin is a simple white shader, with a bit of rough displacement..
thanks in advance

Re: texture alignment

Dwight — Mon, 10 Oct 2005 14:03:43 GMT

1: make an "undersun:"

no shadow casting
altitude -90.

2: Don't use white light:

make the real sun yellow and the undersun blue.

This is the typical approach in my book, the next batch of which ships Friday. Don't miss out.

Send PM for ordering instructions.