Digital Art Zone

 
   
1 of 3
1
A Plant Model and Material… ideas and comments please.(update1)
Posted: 26 February 2013 06:35 PM   [ Ignore ]
Active Member
RankRank
Total Posts:  280
Joined  2011-05-02

I have been working on a model of a plant leaf type, custom built for Bryce so that I may learn more about creating materials and the way, once the models are imported appear.
Was really trying to keep a happy medium between low poly and smooth curves.
This one was built in Hexagon, the initial idea is to create a model of a New Zealand Flax plant although so far it has turned into an experiment more so with the material, the Flax plant leafs are much more straight, well the leafs on the plant I have outside my little flat in London are..(and the material is not right..yet!)
One of the requirements of the material is to give an edge colour to the leaf, I must say though I do not wish to use an image texture, although it seems the only way to get what is needed is to make sure the model is uv mapped and then in Bryce use parametric mapping, in this case the the leaf model was made with a flat grid that was planer uv mapped before any alterations to it, a technique I believe some use to model hair for characters for Daz Studio.
Also to get the yellow edges was a subtle combination of x scale which turned out to be X 96.5% and 1D noise 126 I wonder why X 100% is too much?
I would be grateful of any comments,feedback and ideas as to improving please.
Here it is for download. 

Download Flax Plant test.zip

 

 

Image Attachments
plant.png
Profile
 
 
Posted: 27 February 2013 12:00 PM   [ Ignore ]   [ # 1 ]
Member
Avatar
Rank
Total Posts:  164
Joined  2004-06-24

Nice Flax. Very well done.

Cheers
GG

 Signature 

WHO said Kiwis can’t fly ?????

Profile
 
 
Posted: 27 February 2013 01:53 PM   [ Ignore ]   [ # 2 ]
Addict
Avatar
RankRankRankRank
Total Posts:  3336
Joined  2004-10-01

If you can get it right with a procedural material, you’ll be better off than with an UV map because plant leaves are translucent (particularly when back-lit), which can be done in Bryce (thanks to Rashad’s idea). Once an UV map is used, you can’t make it translucent. As for the model, it looks great to me but I don’t know this particular plant.

 Signature 

**  [ Stuff by David Brinnen and myself**  [ My DAZ 3D Gallery**  [ My Website**  OPC 4565 **

Profile
 
 
Posted: 27 February 2013 02:56 PM   [ Ignore ]   [ # 3 ]
Member
Avatar
Rank
Total Posts:  164
Joined  2004-06-24

@ Horo,  The flax is a native of NZ it has very strappy and fibrous leaves. Native one is quite large and when flowering can reach a height of around 3.5 metres. Is now available as many hybrids minature, medium, varigated. We have several in our garden including a red , bronze/cream (var) and a green/cream (var). here’s some pics. The bird is a native Tui ( too-ee) which is a reasonably common nectar feeder.

Cheers
GG

Image Attachments
flax1a.jpgflax2a.jpgflax4a.jpg
 Signature 

WHO said Kiwis can’t fly ?????

Profile
 
 
Posted: 27 February 2013 08:10 PM   [ Ignore ]   [ # 4 ]
Member
Avatar
Rank
Total Posts:  221
Joined  2005-09-28

That’s some nice flax, Tapioca smile

Flax was one the primary exports NZ had back in the 1800s. It grows everywhere here in NZ. It’s a hardy, fast growing, fibrous plant used in the manufacture of native clothing, structures, ropes - there was a huge demand for flax during the expansion of the British Empire.

I don’t think it’s commercially grown here these days, but it remains to be a very useful plant.

 Signature 

Oroboros Presents… KEY-FLAME: Bryce Animation Tutorials

Profile
 
 
Posted: 27 February 2013 08:14 PM   [ Ignore ]   [ # 5 ]
Member
Avatar
Rank
Total Posts:  221
Joined  2005-09-28
Horo - 27 February 2013 01:53 PM

Once an UV map is used, you can’t make it translucent.

Well, you can make it translucent through transparency, surely. UV Maps can come in several layers, from color to alpha to bump. Bryce 7 might kick up a stink over UV maps, but Bryce 6 should be able to handle it.

 Signature 

Oroboros Presents… KEY-FLAME: Bryce Animation Tutorials

Profile
 
 
Posted: 27 February 2013 10:58 PM   [ Ignore ]   [ # 6 ]
Active Member
Avatar
RankRank
Total Posts:  672
Joined  2006-05-26

You can make the leaves translucent, even with a UV map, but it requires that you create a mask. Make the mask so that the parts you want light to penetrate need to be black, while the parts of the map you want to remain solid need to be made white.

Before we go any further I want to make it clear the difference between transparency and translucency. The two effects are very similar except that standard transparency engages internal reflection, making the leaves look like glass instead of looking like a living thing. So the trick is to make the item transparent while not making it reflective.  Here are two links to some materials I made for Bryce long ago that explain how this works. You need to create an account at Bryce5.com. There are two examples, one made with a bryce leaf the other made with a uv mapped clematis flower.

When you get the texture home and open it up you will notice the clever means used to enable translucency without introducing any reflection. You will notice that the item has translucency but the transparency slider is at 0. You will notice a procedural named “Black Nothing” which is used to create the magic of the effect. In the case where you have a uv mapped plant where you want only the leaves to be translucent but not the stems and trunk, you will need to apply a custom made map to the transparency channel replacing the procedural I used. A black image works just as well as the Nothing procedural. You will also notice that the transparent color channel and the volume color channel control the degree of translucency and can even tint the “shadows” created by this object.

I know it seems like Spanish but when you see the material in the material lab it will make sense. Keep in mind, you will not need to use any ambient glow since the leaves are already receiving light in a natural way. Render times however, are longer, much longer, so be prepared. Best of luck

Links:
http://www.bryce5.com/details.php?image_id=2040
http://www.bryce5.com/details.php?image_id=2041
http://www.bryce5.com/details.php?image_id=2042

 Signature 

Please view my Daz3d User Gallery
http://www.daz3d.com/gallery/#users/465/

Profile
 
 
Posted: 28 February 2013 09:54 AM   [ Ignore ]   [ # 7 ]
Active Member
RankRank
Total Posts:  280
Joined  2011-05-02

Thank you for the comments
@Horo I am not sure about the uv maps now you say that I cant make it translucent, the only reason for the uv is that the parametric material will not work otherwise, I am not using an image,I will have to find out more.

@Kiwi-gg some great reference pics and I love the Tui bird it’s beak is the same angle as the flax flowers,how lovely. Those flowers look tricky to model but I’ll have a go.

@Oroboros I am getting a little confused now. Why would 7 have problems with a uv map? I cant get the material to work any other way as parametric mapping works on all the separate objects.

@ Rashad Carter thank you, I shall do as you advise, looks like I better get started then, dos cervezas por favor.

Well it is cold and miserable in London so better I carry on with my Flax model..inside:)
Thanks again chaps

aroha nui

 

Image Attachments
Kapiti.pnglong_lost_cousin.jpg
Profile
 
 
Posted: 28 February 2013 01:57 PM   [ Ignore ]   [ # 8 ]
Addict
Avatar
RankRankRankRank
Total Posts:  3336
Joined  2004-10-01
TapiocaTundra - 28 February 2013 09:54 AM

Thank you for the comments
@Horo I am not sure about the uv maps now you say that I cant make it translucent, the only reason for the uv is that the parametric material will not work otherwise, I am not using an image,I will have to find out more.

Listen to Rashad rather then me. He knows these details better.

 Signature 

**  [ Stuff by David Brinnen and myself**  [ My DAZ 3D Gallery**  [ My Website**  OPC 4565 **

Profile
 
 
Posted: 28 February 2013 02:26 PM   [ Ignore ]   [ # 9 ]
Member
Avatar
Rank
Total Posts:  221
Joined  2005-09-28
TapiocaTundra - 28 February 2013 09:54 AM

@Oroboros I am getting a little confused now. Why would 7 have problems with a uv map?

That’s a really, really, REALLY good question: one so good it’s hasn’t been addressed by DAZ since Bryce 7’s release 3 years ago.

Basically, the way to get a UV map imported into B7 is through the Picture Library. Many users (including myself) have encountered problems with the Picture Library, especially with UV map imports, where the pictures come out blue. Just… Blue.

It’s a bug.

However, you can bring a UV map fairly reliably if you import the model into B6, apply the UV map in B6, save the scene in B6, and then open your scene in B7.

Kia kaha!

 Signature 

Oroboros Presents… KEY-FLAME: Bryce Animation Tutorials

Profile
 
 
Posted: 03 March 2013 04:30 PM   [ Ignore ]   [ # 10 ]
Active Member
RankRank
Total Posts:  280
Joined  2011-05-02

I have enjoyed making this New Zealand flax plant, it is more what I had in mind, any feedback welcome as I would like to try to model some more plants so comments do help so test it out and please let me know what you think.
I really want to get to grips with the deep texture editor it is becoming less irritating but time consuming.

Here it is for download.

Phormium_Sundowner.7zip

 

Image Attachments
Phormium_Sundowner.png
Profile
 
 
Posted: 04 March 2013 04:56 AM   [ Ignore ]   [ # 11 ]
Active Member
Avatar
RankRank
Total Posts:  605
Joined  2010-02-18

Thanks for the plant, Tapioca...very nice, and hope to use it in the future. Just added it into the Vegetation folder.

I’ve never had the need to import an [.obp] file before into Bryce, so wasn’t sure how to. However, found this description by Stephen Teixeira very useful, and so simple a procedure…just in case others don’t know how to either.

Jay

Profile
 
 
Posted: 04 March 2013 06:23 AM   [ Ignore ]   [ # 12 ]
Addict
Avatar
RankRankRankRank
Total Posts:  3336
Joined  2004-10-01

@TapiocaTundra - thank you for the New Zealand flax plant. It looks really nice in your render above.

Here’s a document that should help to understand how and where things have to be added to libraries: http://www.horo.ch/docs/mine/pdf/BryceContent_v4.pdf

 Signature 

**  [ Stuff by David Brinnen and myself**  [ My DAZ 3D Gallery**  [ My Website**  OPC 4565 **

Profile
 
 
Posted: 04 March 2013 12:06 PM   [ Ignore ]   [ # 13 ]
Active Member
RankRank
Total Posts:  280
Joined  2011-05-02

You are both welcome, what shall I have a go at next, I could stick with flax plants maybe, to get to know them better, they come in all shapes n sizes, there are a couple of big darkish green floppy ones just around the corner from where I live, funny I had not noticed them before, until I started this one, do I have the patients though.
Any requests smile

Profile
 
 
Posted: 04 March 2013 02:07 PM   [ Ignore ]   [ # 14 ]
Addict
RankRankRankRank
Total Posts:  4573
Joined  2004-07-01
TapiocaTundra - 04 March 2013 12:06 PM

You are both welcome, what shall I have a go at next, I could stick with flax plants maybe, to get to know them better, they come in all shapes n sizes, there are a couple of big darkish green floppy ones just around the corner from where I live, funny I had not noticed them before, until I started this one, do I have the patients though.
Any requests smile

pampas grass would be nice

Profile
 
 
Posted: 04 March 2013 02:21 PM   [ Ignore ]   [ # 15 ]
Active Member
RankRank
Total Posts:  280
Joined  2011-05-02

pampas grass LOL is that a challenge? initially I laughed then had a look at some images, then laughed again, but I must say you got me thinking bigh.

Profile
 
 
   
1 of 3
1