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1. Re: Anyone Have Tips on Avoiding Jaggies in 3D Renderings?
Noel Carboni Oct 7, 2012 10:03 AM (in response to Noel Carboni)I may have answered my own question... I switched everything to 32 bits/channel mode, and while it looked a tad jaggie when I was rendering it, then when I switched to 8 bits to prepare to save the work product the jaggies were reduced. They're still there but at this level I can live with them...
-Noel
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2. Re: Anyone Have Tips on Avoiding Jaggies in 3D Renderings?
Silkrooster Oct 7, 2012 9:34 PM (in response to Noel Carboni)Nice ring. I don't really notice the jaggies, so unless you point them out, odds are most viewing the ring won't either. But thats my opinion. I am not sure if its what your going for, but it looks like the ring is receiving a bit too much light from the ground and the highlights are blown out abit. Dialing them back just a tad may make the ring look a bit sharper.
Since I don't have the object to render, thats my guess. But as they say, its in the eye of the beholder.
Nice job BTW...
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3. Re: Anyone Have Tips on Avoiding Jaggies in 3D Renderings?
conroy Oct 8, 2012 9:57 AM (in response to Noel Carboni)Yes, appropriate tone-mapping when reducing 32-bit to 16 or 8 can reduce the jaggies that are seen at very high contrast boundaries in the 32-bit image. You can further reduce jaggies by rendering at double size then downsampling but that's going to be slower, of course.
By the way, the ring mesh supplied with Photoshop is an abomination. Not only is it poorly UV-mapped, a terrible triangulation algorithm has been used to create its geometry, hence the severely distorted reflections.
You can make a much better ring mesh by drawing a ring's profile curve with Pen/Shape tools, creating 3D extrusion layer from path, then selecting the 360 deg revolved extrusion preset.
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4. Re: Anyone Have Tips on Avoiding Jaggies in 3D Renderings?
Noel Carboni Oct 8, 2012 10:07 AM (in response to Silkrooster)Thanks for the feedback. The look I'm going for is the "I want that precious thing" because of its absolute perfection.
Darkening the bottom a little was a matter of making shadows blacker and burning the lower parts of the IBL image some. Adding some clouds and burning down the brightness of the IBL at the top helped a lot with the apparent blowout / jaggies issue as well. I also added a very subtle red outer glow to the text, but I can't decide if that detracts from the crispness.
Really warms my processors up to render this puppy, though it only takes about 4 minutes.
How's this look to you by comparison?
-Noel
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5. Re: Anyone Have Tips on Avoiding Jaggies in 3D Renderings?
Noel Carboni Oct 8, 2012 10:08 AM (in response to conroy)conroy wrote:
You can make a much better ring mesh by drawing a ring's profile curve with Pen/Shape tools, creating 3D extrusion layer from path, then selecting the 360 deg revolved extrusion preset.Thanks. I'll try that!
-Noel
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6. Re: Anyone Have Tips on Avoiding Jaggies in 3D Renderings?
conroy Oct 8, 2012 10:53 AM (in response to Noel Carboni)I think that the 3-dimensionality would be improved if the front of the ring had a little more contrast, and I agree that the text would be crisper without the red glow. The colours in the image are very pleasing, though.
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7. Re: Anyone Have Tips on Avoiding Jaggies in 3D Renderings?
Noel Carboni Oct 8, 2012 3:32 PM (in response to conroy)conroy wrote:
I think that the 3-dimensionality would be improved if the front of the ring had a little more contrast, and I agree that the text would be crisper without the red glow. The colours in the image are very pleasing, though.
Your feedback has been invaluable to me.
Better extrusion, more of a mirror finish, better "tower of Sauron" background, text only on the outside...
How's this? A bit too dark maybe?
Remaining challenges... Make the text seem sharper/brighter, create a more dramatic surface on which it rests (I almost hate to lose the glass reflections though)...
Edit: OK, had the depth of field set wrong. Fixing that, plus a bit of inner bevel makes the text a bit better looking. Switching to 32 bit again (like before) allowed me to increase the range of brightnesses a bit. Some fine tuning of the color to make the ring look gold rather than bronze or brass.... I'm calling the project done at this point.
Thanks for your help everyone!
-Noel
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8. Re: Anyone Have Tips on Avoiding Jaggies in 3D Renderings?
conroy Oct 8, 2012 7:02 PM (in response to Noel Carboni)Nice work, Noel! Incremental improvements.
I'll give you some constructive criticism. Your gold looks rather like chrome reflecting an environment containing golden colours. The illusion of gold is spoiled unless all reflections are filtered by the colour of gold (which varies according to purity, of course). There are never gray highlights on gold, for example. White highlights seen on gold in a photograph are clipped highlights.
Here's a quick render of that terrible Photoshop ring mesh preset when it's given a material which tints reflections with gold.
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9. Re: Anyone Have Tips on Avoiding Jaggies in 3D Renderings?
Noel Carboni Oct 8, 2012 7:40 PM (in response to conroy) -
10. Re: Anyone Have Tips on Avoiding Jaggies in 3D Renderings?
conroy Oct 8, 2012 8:36 PM (in response to Noel Carboni) -
11. Re: Anyone Have Tips on Avoiding Jaggies in 3D Renderings?
Silkrooster Oct 8, 2012 10:37 PM (in response to Noel Carboni) -
12. Re: Anyone Have Tips on Avoiding Jaggies in 3D Renderings?
SG... Oct 8, 2012 11:05 PM (in response to Silkrooster)Wow, you guys are having fun. Great to see!
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13. Re: Anyone Have Tips on Avoiding Jaggies in 3D Renderings?
Noel Carboni Oct 9, 2012 6:41 AM (in response to conroy)conroy wrote:
Yes, your gold is getting there. I was going for pure gold
On the other hand I'm shooting for a Gold - Mithril alloy.
-Noel
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14. Re: Anyone Have Tips on Avoiding Jaggies in 3D Renderings?
conroy Oct 9, 2012 4:23 PM (in response to Noel Carboni) -
15. Re: Anyone Have Tips on Avoiding Jaggies in 3D Renderings?
Noel Carboni Oct 9, 2012 4:34 PM (in response to conroy)Nice, though from where I sit it's gotten altogether too orange. Try pushing it more toward Silkrooster's color, though that might be just a hair too green.
Your rendering looks very believable. Did you create an actual 3D surface for it to sit on? Seems like we're seeing that surface in the rendering, with the IBL from the room image (?) only toward the top of the RIng.
-Noel
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16. Re: Anyone Have Tips on Avoiding Jaggies in 3D Renderings?
conroy Oct 9, 2012 5:05 PM (in response to Noel Carboni)

















