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Show Us Your Bryce Renders! Part 2
Posted: 08 December 2012 01:25 PM   [ Ignore ]   [ # 1066 ]
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@dwsel_ - the lapidary site - isn’t that Rosemary Reagan? She’s the expert.

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Posted: 08 December 2012 01:33 PM   [ Ignore ]   [ # 1067 ]
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Beautiful results Dwsel!  Very impressive.

OK snow… snow is difficult… Even as simple as it gets it’s difficult.  Seems to me snow actually benefits from looking slightly out of focus.  Which would be a great feature to have - a material specific focus control.  I suppose what is missing is SSS.

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Posted: 08 December 2012 01:36 PM   [ Ignore ]   [ # 1068 ]
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David Brinnen - 08 December 2012 01:33 PM

Which would be a great feature to have - a material specific focus control.  I suppose what is missing is SSS.

That is a great idea! I thought about something like this several times but couldn’t bring it on such a clear statement. SSS is, of course, an absolute must.

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Posted: 08 December 2012 01:42 PM   [ Ignore ]   [ # 1069 ]
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Couldn’t you just adapt that ice you did?
That was cool (pun intended).

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Posted: 08 December 2012 01:44 PM   [ Ignore ]   [ # 1070 ]
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pumeco - 08 December 2012 01:42 PM

Couldn’t you just adapt that ice you did?
That was cool (pun intended).

Len, I’ve made a lot of ice - even by my own standards of material making obsessiveness I’ve made a lot of ice - you are really going to have to narrow it down a bit for me to answer that question.

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Posted: 08 December 2012 01:49 PM   [ Ignore ]   [ # 1071 ]
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It’s the only ice I recall seeing from you, the ice bergs, the one that has a blue tint to it where the bergs are floating in the water!

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Posted: 08 December 2012 01:54 PM   [ Ignore ]   [ # 1072 ]
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pumeco - 08 December 2012 01:49 PM

It’s the only ice I recall seeing from you, the ice bergs, the one that has a blue tint to it where the bergs are floating in the water!

Ah… that one… well that’s an easy question the answer, that ice was clouds.  In other words a volumetric slab.  That’s OK as far as it goes since that does have SSS after a fashion.  But… volumetric materials only work, as doubtless you know, with a limited number of primitive types and… more critically, don’t appreciate intersecting with other objects and and and are a nightmare to render with TA.  So… that’s why.

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Posted: 08 December 2012 01:58 PM   [ Ignore ]   [ # 1073 ]
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pumeco - 08 December 2012 01:16 PM

@dwsel_
Very nice, I think that’s the best one I’ve seen in Bryce grin

Thank you! I think the high ray depth (here 12) and TIR (here 7) might be playing the most important role, because the materials and lighting are blandly simple.

Horo - 08 December 2012 01:25 PM

@dwsel_ - the lapidary site - isn’t that Rosemary Reagan? She’s the expert.

Oh, I didn’t know the site’s host, but it seems you’re right: http://www.whois.com/whois/3dlapidary.com

pumeco - 08 December 2012 01:49 PM

It’s the only ice I recall seeing from you, the ice bergs, the one that has a blue tint to it where the bergs are floating in the water!

Maybe this one? http://www.bryce5.com/details.php?image_id=4378&mode=search

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Posted: 08 December 2012 03:56 PM   [ Ignore ]   [ # 1074 ]
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dwsel_ - 08 December 2012 01:00 PM
Rareth - 07 December 2012 04:30 PM

ok this is the result of me following David’s latest TA lighting video.  I think I learned quite abit, I watched it 4 or 5 times.

Wow! That spiral looks really charming surprised

About your recent experiments with jewellery -
I thought I could share with you some links that you might find useful

about modelling:
- http://web.archive.org/web/20051228115335/http://www.petersharpe.com/Tutorial6.htm
- http://www.3dlapidary.com/HTML/Intro3D.htm
- http://www.3dlapidary.com/HTML/Facets.htm
- http://www.3dlapidary.com/HTML/Renders.htm

rendering:
- http://www.robinwood.com/Catalog/Technical/BryceTuts/BryceClasses/BBryce6/BBryceLesson6-4.html
- http://mentalraytips.blogspot.com/2009/11/fire-and-ice-rendering-diamonds-and.html

and some gem models libraries (also for Bryce):
- http://www.3dlapidary.com/HTML/Models.htm
- http://www.3dlapidary.com/HTML/Collections.htm


Here’s my try at rendering gem in Bryce. The model is a result of very crude booleaning (jewellers would probably say it’s very dark, too deep cut, with high crown and overly thick girdle).

7_studio_242 - shows one of the renders (the green channel the IOR of which is 2.42)

7_studio_RGB - is the combined from 3 channels (red - IOR of 2.40, green - IOR 2.42, blue - IOR 2.44)

7_studio_RYGCB - combined from 5 channels (IOR from 2.40 to 2.44 by 0.01 step) - gives smoother appearance but 5x that slow render time and slightly more complex assembling

7_studio_fin - finished after some postpro, the kind of ‘product shot’ image

thanks for the information, I’ll have to go check things out..  one thing about the Incidence of Refraction, how does the IOR numbers I see tossed around relate to the Refraction slider in the Bryce Mat Lab?

Never mind, I found what I was looking for.. multiply the IOR by 100 to get Bryce values.

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Posted: 08 December 2012 04:14 PM   [ Ignore ]   [ # 1075 ]
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@David
You’d be surprised, I’ve played with Volumetrics but as with almost everything else in Bryce it was only in isolation, messing around tweaking stuff.  I hardly ever render a scene where things intersect or react because I hardly ever render scenes.

@dwsel_
Yup, that was the one, or something very similar.

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Posted: 08 December 2012 09:03 PM   [ Ignore ]   [ # 1076 ]
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Horo - 08 December 2012 01:25 PM

@dwsel_ - the lapidary site - isn’t that Rosemary Reagan? She’s the expert.

Diamond from the Lapidary site, also tried some rendering tips that were on there..  I don’t have regular photoshop just elements, and I am not all that familiar with it, also have Gimp, and any skills I had in that have vanished so I’m not sure how to do compsites, so I need ot track down some tutorials for it. but, in the mean time, I got a gem to turn out like this..

 

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Posted: 08 December 2012 10:23 PM   [ Ignore ]   [ # 1077 ]
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David Brinnen - 08 December 2012 01:33 PM

Beautiful results Dwsel!  Very impressive.

OK snow… snow is difficult… Even as simple as it gets it’s difficult.  Seems to me snow actually benefits from looking slightly out of focus.  Which would be a great feature to have - a material specific focus control.  I suppose what is missing is SSS.

Well for what it’s worth, the snow material you sent to Pam looks convincing enough to me.

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Posted: 08 December 2012 11:17 PM   [ Ignore ]   [ # 1078 ]
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Well I got home from tonight’s gig and decided to continue with the sheath for the knife… So I added a bit more detailing… luckily it doesn’t need covering in snow. grin

Pam’s snowy renders are looking really good, I think the trick with snow is to have no detail in the material. Snow has such a high reflective index that all detail within the material is easily bleached out by any light hitting it… Having said that, David’s last sample with the blob sat on top of the sphere would make a fairly convincing polystyrene.

As for the renders of gems… they are all looking really nice. I’ve been wondering for some time if the refraction of Bryce materials would react in the same way as in the real world… and if you shine a white light onto a transparent prism, would the light split into it’s spectrum colours?
Maybe I’ll have a look tomorrow.

I’ve also been wondering if you can get a light source to accurately simulate how a laser acts and reacts in the real world?

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Posted: 09 December 2012 02:01 AM   [ Ignore ]   [ # 1079 ]
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I personally think the snow that’s shown look good, like I’ve seen it in the RW.

Those gems are, well, gems.  I think they’re all nice.

@Dave:  Your latest knives, and sheaths are great.  The cutting edge.

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Posted: 09 December 2012 02:29 AM   [ Ignore ]   [ # 1080 ]
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Dave, the stitching is an excellent touch, your dedication to adding detail has paid off.

Yes I agree about the polystyrene snow… Maybe snow is another instance where displacement would help?  But if I had the choice, I’d rather have access to SSS.  Anyway, along these lines, Dwsel style, I’ve tried to fake the effect of having material specific blurring by combining several renders with the aid of masks.  I’m still not overly impressed with my results, but it is something else to think about.

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