Need help : Adding a pattern on a glass model
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Need help : Adding a pattern on a glass model
Here is my problem : I need to apply various pattern designs on 3D glass models
Here's what I'm looking for : https://imgur.com/l2PlG6n
Here's the issue : https://imgur.com/XeO5OwC
I use UVW Mapping on my pattern's material with "Simple projection" and side to "Both" with the "Tile" option.
On some models, the pattern get distorted, much bigger on the parts that are rounded, not plane (maybe this is the reason?)
There's also some dots that shouldn't be here. You can see the original pattern : https://imgur.com/iuYWnzi
Thanks in advance
- masterzone
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- Messaggi: 10382
- Iscritto il: ven set 17, 2004 5:34 pm
- Località: Verona
Re: Need help : Adding a pattern on a glass model
Re: Need help : Adding a pattern on a glass model
Hi masterzone ! Thanks for your quick answer.masterzone ha scritto: ↑mer giu 03, 2020 3:01 pm Hi Tom, welcome aboard. The problem is the projection, if you are using UVW mapping you need the unwrapped UV otherwise distortions occurs. If you are not into the UVW argument you must change your projection on something else like Cylindrical mapping to avoid distortion. Let me know
What do you mean by unwrapped UV? I tried changing the projection to cylindrical, sphere and all the others but the only one that gives a realistic result is UVW mapping, the others are distorting the pattern a lot. Frontal is the only one that keep my pattern normal but of course it isn't realistic since the pattern isn't following the object.
Re: Need help : Adding a pattern on a glass model
I don't understand why the middle zone is working while the rest is taking the orange or dark grey color from the pattern with huge distortions.
I found this video : https://www.youtube.com/watch?v=Xe-HZQU5I8c do you think that doing the same to my glass renders would solve the problem? Thanks !
- masterzone
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- Iscritto il: ven set 17, 2004 5:34 pm
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Re: Need help : Adding a pattern on a glass model
As said before , what about Cylindrical mapping? if you apply on it with Cylindrical projection you can right click into it and choose "adapt to object" for a good placing and after you can use tag percentages for change the size
Give me some minutes for making a video...
ps: if you click into "full editor and preview" forum button below you can drag and drop image from your desktop into the message body instead to use imgur
Re: Need help : Adding a pattern on a glass model
But I have to do something like 30% lenght U and 100% lenght V to get a normal look.
Otherwise it's working pretty well at the moment !!
Thank you so much, I'll try if I have a better result using unwraped UV, I saw that Substance Painter can automaticaly generate uv maps from 3D models ?
Sincerely,
Tom
- masterzone
- Site Admin
- Messaggi: 10382
- Iscritto il: ven set 17, 2004 5:34 pm
- Località: Verona
Re: Need help : Adding a pattern on a glass model
- masterzone
- Site Admin
- Messaggi: 10382
- Iscritto il: ven set 17, 2004 5:34 pm
- Località: Verona
Re: Need help : Adding a pattern on a glass model
Anyway you can try to substance as well for the unwrapping...Remember that Cinema4D S22 is now shipping with a new unwrapping tools
Re: Need help : Adding a pattern on a glass model
Hi masterzone !masterzone ha scritto: ↑mer giu 03, 2020 4:56 pm Yes if you work with substance the bridge can unwrap for you the object but there are many kind of unwrapping way, you need a very good unwrapping to make a label fit on it perfectly. There are also some way for unwrapping objects that give you the possibility to paint into the object without some special actions but is not suitable for labels or something else...
Anyway you can try to substance as well for the unwrapping...Remember that Cinema4D S22 is now shipping with a new unwrapping tools
Thank you so much for your time, it works fine using cylindrical and fit to object ! But I still have an issue with some black dots appearing on the render. I never saw such a thing, maybe due to the glass transparency or something like that ?
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Re: Need help : Adding a pattern on a glass model
My pattern gets black on the back of the glass. I just changed the glass material a bit but not sure this would make this black. Also switched my render settings to physical. But at least the dots are gone !
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