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iKPACH — Diamonds - LuxRender
by-nc-nd
Published: 2011-04-23 16:45:18 +0000 UTC; Views: 1848; Favourites: 17; Downloads: 58
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Description
Haven't used LuxRender in a while, so I figured I'd try something out of my comfort zone. At first it was a disaster, me wasting over 100 hours of render time on flops, so I went to the LuxRender chat room, and sorted things out.Huge thanks to those fellas on the chat room, it would've been impossible without them. If you ever have problems with Lux I highly recommend you ask them.
Programs - Blender, LuxRender, Photoshop
Time - Blender: 20 minutes, LuxRender: 211 hours, Photoshop: 15 minutes.
If you could spare the time, I'd love it if you'd point out some of its flaws (I'm sure there are many)
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Comments: 29
Im a noob on Luxrender myself.,. if i had to point out any flaws in this i would suggest theres slightly too much noise reduction blurring out some detail. And perhaps have a different lighting setup with more mesh lights, front back, left right, highlight etc. Also if the roughness of the shader is set too high it might blur the detail looking through the diamonds.
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I may be mistaken but I thought that diamonds refracted light that was at least partially dispersed, that is , some of the white light splits into its component colors as it passes through. it does look very nice though, 211 hours , wow. I'm glad the blender team gave us the cycles engines engine. granted it doesn't quite deliver the same precision as blender but it does deliver them in a tiny fraction of the time.
P.S i'm probably being quite ignorant here , any corrections you can provide would be appreciated XD
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ugh, I have no clue how to use Luxrender properly. Any tutorials you can refer me to?
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I used this forum discussion a little bit for this:
[link]
Mostly though it was just experimentation and hours (if not days) of waiting for test renders to come through.
Also, go to the LuxRender chat room if you have specific issues. The people on their are incredibly helpful and know their stuff:
[link]
Best of luck!
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I've revisited this image, and I've came to the conclusion that I was wrong; there is actually a very glassy property to certain diamonds, so I'm sorry about that.
Can I ask though; how did you get the edges so sharp? Mine are kinda fuzzy...
(211 hours? Wow, commitment..!)
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Sure, not a problem.
As for your problem I would just make sure you rendered it to the right size and your not viewing the rendering process at like 125% of the actual image. If that's not it you should try the luxrender chat room. They're really helpful.
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It could be the antialiasing, and as for resolution scale, it's definitely at 100%... (I'm pretty sure there isn't a way to get it above that, actually, or making several different resolutions would be much easier for me...)
Thanks, I appreciate the help!
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Wait..... where the hell is the A.Aliasing tab.
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Honestly, I haven't a clue. I'm fairly new to this too...
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...IT'S GONE WHAT DO I DO WHAT DO I DO WHAT DO I DO AAAAAAAAAAAA
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Conside ramping the IOR. Aside from that, these look AWESOME.
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I set it at the 2.41 Diamond preset 
But thanks
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Presets never give an exact result. You control the render, not the other way around.
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Very nice render
My only comment is to check your IOR.
To me the refraction looks more like ice(1.3), or maybe glass(1.5 to 1.8), where diamond's IOR is 2.14
Or, it's the edges of the facets which look rounded not sharp and crisp.
Regardless... I think it looks great, excellent work!
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Yeah, it's the latter. I tried to make it only slightly rounded for added realism, but it didn't turn out quite as subtle as I wanted.
Anyhow, thanks
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nice one bud, but i have to ask, are these diamonds intended to be flawed? because if you intended them to look flawless, that didn't quite work out, BUT the fact that they look a little flawed to me makes them look really really believable in my opinion. also these refractions look quite impressive. good work
think I may give lux render a go after looking at how nice these turned out.
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Nah, I had to stop Lux before it looked entirely "finished," so I guess it wasn't on purpose
But anyway, thanks
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