and now for something completely different...rendering??

So earlier this week I made the mistake of downloading the trial of something called Keyshot. Here’s the deal…when you model something in ZBrush, or any basic CAD program, it doesn’t look like a photo. If you watch those home shows on HGTV, they’ll show a CAD drawing of the home, but it’s not until later that they show the fancy, more-realistic view. That’s an extra step that can take a lot of time and some expensive hardware and software. And that’s how movie studios get realistic animated creates…they’re all RENDERED, adding some photo-realism.

View fullsize

(click to enlarge) Using Nanomesh in ZBrush as a test to make a pavé ring…

I had heard that ZBrush has a partner in crime when it comes to making that photorealistic stuff…but I also heard it was almost $1800! For “real” jewelers who sell expensive jewelry, they probably don’t bat an eye at that price. But for someone making casual lifestyle jewelry, that’s almost as much as a 3D printer.

I knew the need was there, though, so I started researching while working on my ZBrush course. I tried Blender, which is free, but OMG…it made my head hurt. Maybe Keyshot was more user-friendly? (Hint: It’s almost a religious debate among CAD folks…) Might as well know something about it. That was a mistake…I’m hooked. Do I really ever have to physically make jewelry again? This CAD thing is SO MUCH CLEANER! I’ll just look at my stuff on the screen and imagine I made it. But I guess that’s cheating future archeologists!

So here’s the interesting part. That cute little start to a bracelet above? It’s not real. I modeled it in ZBrush and rendered it in Keyshot. It does not exist in a physical form. How will we know what to believe anymore??

Anyway, I realized that I got the price wrong, and that there is a version specifically for users of ZBrush that’s $200, then there’s something called the ZBrush to Keyshot Bridge that costs another $149. At least I’m hoping that’s what it costs. I MUST have this. Forget designer shoes!

And it’s super late…like 2:47 a.m. on a Saturday, but I couldn’t stop rendering things…anything I could get my hands on. So I thought you might enjoy seeing the process of making a flower charm. It will be in my upcoming ZBrush course.

making some petals

I started out with a virtual “ball” of silver, then pulled out some petal shapes. You can see that they look pretty rough.

smoothing it out

Here I refine the shape a little more.

adding some details

Here I thicken the outer edge of the petals. This will enhance the design once a darkening “patina” is added.

carving our more details

Here I start hollowing out the petals.

adding a bezel

I “append” a new shape. The “Ring3D” is the perfect shape to make a little stepped bezel.

stretching the bezel

I used the “Extend” function under the Gizmo 3D to stretch the bezel vertically.

cutting the ledge

Here I am using another cylinder as a cutter to make a little “shelf” for the stone to sit on. I colored the cutter red…

see the shelf?

It’s a little hard because of the darkening, but there is a little shelf that can be used for a domed stone or a faceted stone. You can still see the flower under the shelf.

cutting through the flower

In the next step, I use another cylinder that’s just the diameter of the inside of the ring to cut through the back of the flower to let light in. It also allows cleaning of the stone.

completed hole

This shows the completed hole, and the bezel pushed down so it doesn’t stick out so far (I “clipped” the back).

add a jump ring!

I “append” another Ring3D for a jump ring, resizing it and using “Inflate” to thicken it so it’s easier to cast.

adding a stone

A domed stone like this is called a “cabochon.” I tried a pale blue. The dark petals are a nice contrast, but I might try adding veins.

adding a chain and a realistic stone

I faked a turquoise here…it was actually an image of cracked mud overlayed onto a blue stone!

veining and brightening the stone

I REALLY prefer this version with the veining, and when I added the stone it was VERY dark. I added a bright silver backing to it to make it shimmer.

adding a faceted stone

Here I tried a faceted stone…either works really well with this dainty pendant!

Anyway, I’m signing off. Time to actually go to bed.

another huichol test video

So I just ran a test last night on creating a Huichol beading tutorial using my iPad Pro with Apple Pencil, Adobe’s Illustrator Draw program to create the bead grid, Recolor, a coloring app, to color the beads, and AutoCAD Sketchbook to animate the thread path. It shows promise!

I don’t thing the text with the bead colors is necessary, but I’m looking for a way to incorporate the colors into the video. Perhaps having a “sliver” of the pattern at the bottom while showing the thread path at the top.

I’ve always wanted to know how to do the leaves that are commonly used in Huichol bracelets and those amazing necklaces…now to show that to others! Stay tuned…

ZBrush illustrations and beading tutorials...

Today a thought passed through my mind…since the majority of visitors to my site are looking for Huichol beading tutorials, is there an easier way to create them?

Last night I was playing around with a new feature in ZBrush 2019, the software I use for jewelry design (mostly cast pieces), and realized that I could apply the new “NPR (non-photorealistic) Filters” to the 3D renderings that make them look hand-drawn! What if I created my beading tutorials in ZBrush, then rendered the images, or even put little movies on my site that allowed people to see beading diagrams more clearly?

Voila! I did a quick model this morning, and sure enough, it works.

The cool thing is it can also produce a black and white drawing that could be printed so folks could color their own designs, either in a tap-to-color coloring book program on the iPad such as Recolor, or with traditional markers or colored pencils.

Anyway, this should make documentation a LOT easier. Stay tuned!

nelson treehouse charm experiment in zbrush

Oh, these are the kinds of things that I do when I’ve been watching too much HGTV and Animal Planet!

I’ve long been a fan of the show Treehouse Masters and a really fascinating guy named Pete Nelson who—with a crew of extremely talented carpenters—build the most amazing treehouses. Not treehouses like the kind you had as a kid, but true works of art that just happen to be up in the air.

So tonight while watching I started thinking about my dream job building treehouses with Pete Nelson. Since they’re in Washington State, I’m guessing that dream will probably never happen.

But I could still make a treehouse charm! Inspired by Pete’s wonderful Fall City treehouse, I created a little charm in ZBrush. I haven’t really paid attention to the castability…this was more of an exercise.

It involved a lot of subtools, and a custom chain. The main treehouse was created out of a Cube3D primitive, trimmed using the Clipping function. The deck was extracted from another cube, drawn freehand with a lasso mask.

I’ve kept all of these subtools separate…for example, I may resize the trees to make the volume of the two trees on the left more closely match the tree on the right so it would sit correctly.

Still not sure how I would sprue this puppy for casting, but it may make its way to my printer in the next few weeks.

And who knows? Tonight’s episode featured Pete and the guys here in Texas building a treehouse near the Frio River. I’d even volunteer for free if he ever needed help here in the Lone Star State. I have tools and a tent and a ukulele!

Pete, call me!

A proof-of-concept charm based on Pete Nelson’s Fall City treehouse

a whale of a tale...and merry christmas!

Whale shark charm in ZBrush

Well, here we are again, and I took a couple days’ break to unwind from the remodel of my parents’ house. Mind you, I’m having a lot of fun working with an awesome group of guys to rebuild the SEVEN decks at this house, but we’ve got the main deck done and we’re working on the railings. A bit more work on the inside, and we’ll be ready to put it on the market. It’s been a long journey—over two years to clear out the house and do a major remodel.

Anyway, tonight I took a moment to record more ZBrush videos, and then my mind started to wander as I looked for more objects to model into jewelry. I absolutely love scuba diving, and swimming with a whale shark is definitely on my bucket list. I’d found my next model.

I started out with a sphere primitive and used the “Snake Hook” brush in ZBrush (shortcut “BSH”) to sculpt the form. I then used “Dam Standard” to create the ridges down the back, and the “IMM Primitive” brush with a sphere to add the spots. I will apply a patina, then the raised spheres should polish out and give the effect of light round dots. Or they might look like tiny polka-dots…sometimes when designing a small charm, you lose sight of what the larger model on the screen may translate into once it’s printed.

So it’s 1:14 a.m. the morning after Christmas, and I just wrapped up. I’m heading to bed. But I just wanted to share this awesome little guy I sculpted this evening. When I finally get back to my studio and start 3D printing and casting again, he’ll definitely be in the next batch.

And then I’ll have to go find a real one to go swimming with.

applying a custom texture in ZBrush

I like designing fabricated or cast jewelry with custom glass cabochons, which can be done pretty easily in ZBrush.

After creating your pendant through whatever means you’d like…sculpting, hard surface modeling, the easiest method is to create a separate subtool that represents the stone. It can also be done with a separate polygroup, but my preference is the separate stone which can be duplicated and different cabs tested.

In the image above, the first piece features a cabochon created from a pâte de verre (glass paste) test tile from the fabulous Alicia Lomne’s class I took last October. The second example is a slab of fused glass that I created a few years back that I cut into cabochons, and the final one is a piece of Fordite. Never heard of Fordite? It’s a manmade “stone” from the drippings of automotive paint from factories, and it is sparkly and beeeautiful! You can actually tell the “vintage” by the colors of paint in the layers; for example, a piece of Fordite from the 1970s will look totally different than a chunk from the early 2000s.

Anyway, your setting for your stone can be as simple as a bezel from one of my bezel tutorials, and create the matching cabochon. I’ll make a video tutorial here shortly to make the pendant above, which was made using the Project Primitive tool, which can be found above the Gizmo 3D in the Move mode.

Moving on…the key here is to apply a material to all subtools before you begin. While in the Draw mode, choose the M button to the left of ZAdd. This enables your material channel. Next, choose MAHmc_Shiny from the Materials picker on the left, then from the Color menu, choose FillObject. If you’ve loaded my custom interface, there is a button on the left under the color pickers for this function.

Now go to the cabochon subtool, and pick a material such as SketchShaded3, then click the FillObject button again. This will assign the material to the cab before we load the texture, giving you a clean slate.

Now, switch to the Rgb channel. Go to the Texture picker on the left side of the canvas. Choose Import at the bottom, and load your texture.

1. Choose a brush that you don’t use often—I use the Clay brush since I usually use ClayBuildup if I’m sculpting.

2. Switch FocalShift to -100, which will prevent the texture from being blended around the edges.

3. Choose DragRect from the Stroke menu, which will allow you to click on the model and drag to resize the texture.

4. Make sure that the desired texture is loaded under the Texture selector.

5. Click on the cab and drag to apply the texture. You can resize and rotate as needed.

To view your piece in all its glory, Choose Best from the Render menu. If you’d like to save the image, go to the Document menu and choose Export.

If you’d like to try different cabochon styles, duplicate the cab under the Subtool palette. Use visibility to turn the different cabs on and off, then export each one.

View fullsize

ZBrush pendant with labradorite cabochon; stone image applied as texture

If you’re a graphic designer and want to place your pendant on an alternate background like the image above, you’ll use a “mask” to block out the background in ZBrush. To create a mask, use the BPR render button on the upper right-hand corner of the canvas, then go to the Render menu, look for BPR RenderPass, and look for BPR Mask…click the button and name the file “[whatevername}_mask.psd. Immediately after generating the mast, make sure it’s set for a “Best” render under the Render menu, then export the image again. If you’re unfamiliar with how to use a mask in Photoshop, do a quick search online for “Using alpha channels in Photoshop.” This will allow you to have a version of your ZBrush jewelry without a background, ready to insert into a custom background.

I’ll get a video up shortly that has this technique, but hopefully this will point you in the right direction for adding cool textures! Try it with veined turquoise or a Mexican Agate, just for fun…

Same texture applied in a different orientation on a pair of earrings

View fullsize

(2) Ocean Jasper cab image from eBay seller waly-beads.
(3) Crazy Lace Agate image from Silverhawk’s Designer Gemstones.
(5) Ocean Jasper from MagicStones on Etsy