Chaos Corona Forum

Chaos Corona for Cinema 4D => [C4D] General Discussion => Topic started by: johnnyswedish on 2018-01-17, 15:17:47

Title: Weird circle in brushed metal texture...
Post by: johnnyswedish on 2018-01-17, 15:17:47
Hi Corona Forum!

Happy New Year to you all 👍 I have created a simple brushed aluminium texture and getting a weird circle in the middle of the box shape that I applied the texture to. It is a cigarette pack and the texture is applied cubic at 5%. Anyone know why this is happening?

Many Thanks!

Title: Re: Weird circle in brushed metal texture...
Post by: maru on 2018-01-17, 15:24:13
I think this is the same as https://forum.corona-renderer.com/index.php?topic=11044.0
So while it may be unexpected, it seems to be the result of the way anisotropy works in various renderers.
Title: Re: Weird circle in brushed metal texture...
Post by: romullus on 2018-01-17, 15:33:05
As a max user, i have hard time reading C4D shaders, but it seems to me, that your anisotropy is too extreme. If i understand it correctly, it goes from full anisotropy to none in very compact space. Try to lower anisotropy value or change noise colours from full black and white to slightly different shades of grey and see if that will help.
Title: Re: Weird circle in brushed metal texture...
Post by: iacdxb on 2018-01-18, 04:13:43
Give a try to set noise texture space to 2D.

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Title: Re: Weird circle in brushed metal texture...
Post by: Beanzvision on 2018-01-18, 08:39:48
Hi Corona Forum!

Happy New Year to you all 👍 I have created a simple brushed aluminium texture and getting a weird circle in the middle of the box shape that I applied the texture to. It is a cigarette pack and the texture is applied cubic at 5%. Anyone know why this is happening?

Many Thanks!

As mentioned, Try lowering the scale. 10,000 seems a bit extreme. ;)
Title: Re: Weird circle in brushed metal texture...
Post by: johnnyswedish on 2018-01-18, 22:22:01
Hi All,

Thank you all for your responses. I will try this out when I get a chance. I have had to do this project with C4D standard renderer as I am having problems with displacement maps. Bummer! Struggling to get the same results as Corona :0 John