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Vue F.A.Q (Last Updated: 2024 Dec 30 8:14 pm)



Subject: cobblestone/mosaic effect


AboranTouristCouncil ( ) posted Mon, 03 March 2008 at 7:32 PM · edited Thu, 05 December 2024 at 12:27 PM

Anyone have a good cobblestone/mosaic style mat/procedural? or know how to make one? I'm trying to create a textured floor without using the straight line tile floor mats that I seem to find everywhere. I'm trying to make an outside floor look believable from a very low camera and light angle, but everything I've tried looks like a lo-rez JPG, and destroys what could be a good scene.

...Insert some witty or thought provoking comment here...


thundering1 ( ) posted Mon, 03 March 2008 at 8:30 PM

Are you looking for it to be a Vue Procedural material, or image-based?

Whenever I do Vue-based materials, it's with the expectation that I'll be going over them like crazy in Photoshop. I have much better luck just making my materials in Photoshop as large TIFs (Color, Bump, and Displacement) and apply accordingly. They look more realistic as well.

Need some TIFs?
If you want a fantastic starting point, go to www.cgtextures.com and look through their floors and tiles sections.

Hope this helps-
-Lew ;-)


AboranTouristCouncil ( ) posted Mon, 03 March 2008 at 9:17 PM

Lew-
With my lack of success with image based textures, I was thinking of going with procedural. I can find all kinds of regularly lined tiles, but nothing with a more random appearance, or even circular.
Thanks for the tip on the website. I'll give them a look.

...Insert some witty or thought provoking comment here...


wabe ( ) posted Tue, 04 March 2008 at 12:59 AM · edited Tue, 04 March 2008 at 1:01 AM

file_401249.jpg

I once made me a cobblestone "material" using an ecosystem. Maybe that is a thought for you too. The stones you could maybe do via simple terrains or, as I did, model them in an external modeller (Cinema in my case). I still think about to offer mine as a product. Enclosed an image as example.

One day your ship comes in - but you're at the airport.


Rutra ( ) posted Tue, 04 March 2008 at 3:09 AM

I recently did an image with a mosaic ("Surrealistic Still Life") and I did like wabe: I just made an ecosystem of chamfered rectangles. Advantages of ecosystems over materials, in this case, include: a) extreme precise positioning, b) you can turn individual eco instances into objects and manipulate them individually in order to make localized effects, like I did, c) you can mix several kinds of materials and get higher diversity, d) you can use ecosystem effects to have higher diversity (rotation, elevation, etc).
One drawback of ecos is higher memory usage, of course...


Rutra ( ) posted Tue, 04 March 2008 at 3:12 AM

In addition, if you want circular patterns (or other kinds), you can also make them with ecosystems, driving the rotation with a function, for example.


thefixer ( ) posted Tue, 04 March 2008 at 3:34 AM

Neat cobbelstones Wabe, I wouldn't mind some of that if you get round to offering it up!!!

Injustice will be avenged.
Cofiwch Dryweryn.


stormchaser ( ) posted Wed, 05 March 2008 at 7:31 AM

That's awesome wabe, this would surely be a seller if you released it. Amazing detail.



thundering1 ( ) posted Wed, 05 March 2008 at 9:31 AM

file_401316.jpg

Extracted from an image from cgtextures.com - brought into Photoshop and made a height map, then the color and bump maps (bump was set to .05 in height for the material once I got it in Vue).

I could have made it tighter (more crisp edged stones) but went for the smoothed out - been-walked-and-driven-on-for-decades - look.


thundering1 ( ) posted Wed, 05 March 2008 at 9:34 AM

Edit - forgot to mention these tidbits - once you make ONE of these, you can position them together as a road, a pathway, etc.

This was also a TINY extraction (you can see some pixellation) from a much larger image - in which case I could have done a rather large chunk of road all in one shot and would have less to duplicate and position later.

ALSO - once you make a good base from an image - you can TILE them so they're easier to dupe and position.

Hope this helps-
-Lew ;-)


AboranTouristCouncil ( ) posted Wed, 05 March 2008 at 1:27 PM

Lew-
Very nice.
Did you use the height map to create a terrain, and then apply texture and bump?
How does different lighting effect its appearance? One of the problems I have with using textures is that the shadows are already there, and may appear odd when real shadows are created from the object.

...Insert some witty or thought provoking comment here...


thundering1 ( ) posted Wed, 05 March 2008 at 1:53 PM

file_401330.jpg

I'll post all the images used in there when I get home tonight.

As far as the Bump application - with image-based textures it's usually best to keep it low - like in the attached image I have it set to .05

Unless it's a very high res image (2048x2048 or larger) you will start seeing unusual blocky shaped hard shadows, and the shading of the image (usually a photo) will provide what looks like a shadow anyway.

If you MAKE your own image from scratch, you should also provide at least a TINY BIT of shadow information as surfaces get deeper or go behind other surfaces.

Hope this helps-
-Lew ;-)


thundering1 ( ) posted Wed, 05 March 2008 at 1:57 PM

Another note I just thought of - look at the cobblestones above - full size it - and you will see the actual BUMP created by the Bump Map almost starts looking like "spikes" - not smoothly rounded bumps.

When I first applied it, the Bump Depth was set to 1.000 and the shadows really overtook the color of the Color Map - which already had shadows of its own built-in.

THIS is why I keep photo-based texture bumps down to a minimum unless I'm going for something over the top - like peeling and cracked paint on crusty old walls - in which case I would make it even higher - like 5-8!


thundering1 ( ) posted Wed, 05 March 2008 at 4:32 PM

file_401347.jpg

Height Map.


thundering1 ( ) posted Wed, 05 March 2008 at 4:33 PM

file_401348.jpg

Color Map.


thundering1 ( ) posted Wed, 05 March 2008 at 4:33 PM

file_401349.jpg

Bump Map.


thundering1 ( ) posted Wed, 05 March 2008 at 4:39 PM

Okay - here's how it worked:

1 - I applied the Height Map (which the one I used I had converted to 16bit - actually didn;'t need to do this given what I'm about to describe - it can stay a little jaggied) - changing the Terrain Size to match - THEN divided the size in HALF and Diffusive Eroded (to smooth it out a little), then DOUBLED the size back up to the original size. When you get it back into Vue's main viewer, lower the height to taste.

2 - Color & Bump Maps - applied a basic Default Grey Mat - went into the Basic Material Editor and applied the Color and Bump Maps. Went back into the Advanced Material Editor and changed the Bump Map to be .05 Depth.

Viola!
hope this helps-
-Lew ;-)


AboranTouristCouncil ( ) posted Wed, 05 March 2008 at 5:32 PM

Outstanding! Although I've done this before, the information about reducing, then resizing really helps! Have you considered doing tutorials?
Thanks
Mike

...Insert some witty or thought provoking comment here...


offrench ( ) posted Thu, 06 March 2008 at 10:23 AM

If you do not find what you need at CGTextures (an excellent source of free textures) or need out of the box tileable textures, check out these texture packages at DAZ.
http://www.daz3d.com/i.x/shop/itemdetails/-/?item=3360
http://www.daz3d.com/i.x/shop/itemdetails/-/?item=3359
http://www.daz3d.com/i.x/shop/itemdetails/-/?item=2543
The kits are $1.99 for platinum club members.
I have the Dark Design ones and find them quite interesting. They include a few cobblestones and wall textures which are typically 1500 by 1500 pixels. There are ready made bump maps for some of them. They also have lots of architectural details to add, if you plan to do so.

Here is a picture made using the dark design wall texture (rendered in Bryce). I turned it into a terrain before, using the technique I describe in this Bryce tutorial (it works the same way in Vue)


Fantasy pictures, free 3d models, 3d tutorials and seamless textures on Virtual Lands.


thundering1 ( ) posted Thu, 06 March 2008 at 10:47 AM

Slick!
I'd thought about making exotic building walls this way before - so far I've just done specific shaped terrains (with walkways, etc.) and cliff-sides. Cool image!
-Lew ;-)


AboranTouristCouncil ( ) posted Sat, 08 March 2008 at 6:06 PM

file_401581.jpg

Thanks to the all the suggestions I received here, I came up with something that may work. Here's the original image: Very pixelated in the foreground.

...Insert some witty or thought provoking comment here...


AboranTouristCouncil ( ) posted Sat, 08 March 2008 at 6:07 PM

file_401582.jpg

And here's the end result of combining various techniques described above:

...Insert some witty or thought provoking comment here...


AboranTouristCouncil ( ) posted Sat, 08 March 2008 at 6:09 PM

Still needs some tweaking. The brass insert needs to be refined, and the gray stone mortar has too much tinge to it.
This will be the base for a scene that I should be posting this next week sometime.
Thanks to everyone that helped!

...Insert some witty or thought provoking comment here...


thundering1 ( ) posted Sat, 08 March 2008 at 7:23 PM

Niiiiiiceee!!
Like it a lot! How big did your texture map being? I think Vue can handle up to 4096x4096 for textures, if that helps?
-Lew ;-)


AboranTouristCouncil ( ) posted Sat, 08 March 2008 at 8:21 PM

I used a Terrain to create the floor itself, four layers (You can see part of it on the top edge of the picture, where it folds over visible, the net effect is simple molding and a step up) The texture maps are 2000x2000 (still has some jpg rough edges on the pattern) Then I used a series of different materials with occlusion maps (circle and zig-zag patterns created in photoshop- 3 different maps in all) to create the different zones of material. The cobblestone itself is a pretty decent image that was not created to be tiled, so I mirrored rather than repeat tile to help get rid of really bad seams (still has them, but not as noticeable.) Used both a bump map for depth and occlusion map (created in Crazy Bump) to create a different material for the mortar (thus the tinged color) as well as a specular map to help with the highlights.
I tried to create a full size terrain with all the cobblestone involved, but did not work as well as I had hoped. But your tips really helped otherwise for the rest.
I think the map for the zigzag may need to be bigger as there is noticable jaggedness. Which brings up a question: Should I use a different format than a max JPG?

...Insert some witty or thought provoking comment here...


thundering1 ( ) posted Sat, 08 March 2008 at 9:32 PM

TIF, TGA, BMP - none of those are compressed.
But if it's small, you'll STILL get jaggies. Try making a big one - 4096x4096 - and see if you can still see it there?
-Lew ;-)


AboranTouristCouncil ( ) posted Sun, 09 March 2008 at 8:18 AM

oops, meant to say distribution maps instead of occlusion maps for the material placements.

...Insert some witty or thought provoking comment here...


Paula Sanders ( ) posted Sun, 09 March 2008 at 10:09 AM

offrench - I was looking at the DAZ items you mentioned. Since I don't use my Bryce and want them only for Vue, what are the formats? I know on one it says png, but are some of the main ones only for use in Bryce or are they all png orj pegs?

They looked interesting and I was thinking of getting them if I can use the main ones in Vue.

Thanks


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