# Radial anisotropy, weird result. **URL:** \ **Category:** Help Required\ **Created:** [May 28, 2014, 7:53pm UTC](https://forums.chaos.com/t/radial-anisotropy-weird-result/128015 "2014-05-28T19:53:25Z")\ **Posts on this page:** 15\ **Page:** 1
**Author:** ![petoboso](https://avatars.discourse-cdn.com/v4/letter/p/eb8c5e/32.png) [@petoboso](https://forums.chaos.com/u/petoboso)\ **Post date:** [May 28, 2014, 7:53pm UTC](https://forums.chaos.com/t/radial-anisotropy-weird-result/128015/1 "2014-05-28T19:53:25Z")
Hi, im trying create radial anisotropy like i usualy do [Imgur: The magic of the Internet](http://i.imgur.com/man06.jpg) but corona give me weird results. First render is only with bump texture without anisotropy (like in reality, and what i need achieve) second is anisotropy with rotation texture. i was trying many combination of values. material setup: Is it bug or i am doing something wrong? Thanks ---
**Author:** ![petoboso](https://avatars.discourse-cdn.com/v4/letter/p/eb8c5e/32.png) [@petoboso](https://forums.chaos.com/u/petoboso)\ **Post date:** [May 28, 2014, 8:27pm UTC](https://forums.chaos.com/t/radial-anisotropy-weird-result/128015/3 "2014-05-28T20:27:17Z")
thanks for reaction, yes it will be needed, mention to him again šŸ˜ƒ ---
**Author:** ![oncire](https://avatars.discourse-cdn.com/v4/letter/o/edb3f5/32.png) [@oncire](https://forums.chaos.com/u/oncire)\ **Post date:** [March 18, 2015, 2:30am UTC](https://forums.chaos.com/t/radial-anisotropy-weird-result/128015/4 "2015-03-18T02:30:51Z")
just want to up this threadā€¦ is there a proper workflow for creating anisotrophic reflections in corona? ---
**Author:** ![maru](https://dub1.discourse-cdn.com/chaosprd/user_avatar/forums.chaos.com/maru/32/15975_2.png) [@maru](https://forums.chaos.com/u/maru)\ **Post date:** [March 18, 2015, 8:36am UTC](https://forums.chaos.com/t/radial-anisotropy-weird-result/128015/5 "2015-03-18T08:36:42Z")
I think this is still valid: > [@Rawalanche](#): > > AFAIK Corona does anisotropy only in world space. Not UV space. I think i mentioned to Keymaster that UV based anisotropy will be needed as well, but i guess it got forgotten. > > Best way to achieve UV based anisotropy at the moment would be using actual bump map šŸ˜ƒ ---
**Author:** ![oncire](https://avatars.discourse-cdn.com/v4/letter/o/edb3f5/32.png) [@oncire](https://forums.chaos.com/u/oncire)\ **Post date:** [March 18, 2015, 5:00pm UTC](https://forums.chaos.com/t/radial-anisotropy-weird-result/128015/6 "2015-03-18T17:00:47Z")
i seeā€¦ so its not yet fully implemented ---
**Author:** ![adamaf\_2](https://avatars.discourse-cdn.com/v4/letter/a/aca169/32.png) [@adamaf\_2](https://forums.chaos.com/u/adamaf_2)\ **Post date:** [March 19, 2015, 10:02am UTC](https://forums.chaos.com/t/radial-anisotropy-weird-result/128015/7 "2015-03-19T10:02:48Z")
I made this fairly easily with geometry. Just a slightly rough metal material. ![anistropic.jpg](https://europe1.discourse-cdn.com/chaosprd/original/3X/5/2/52a3cd44a99e4d54990307cd1e6bbfbf5c5ef574.jpeg) ---
**Author:** ![oncire](https://avatars.discourse-cdn.com/v4/letter/o/edb3f5/32.png) [@oncire](https://forums.chaos.com/u/oncire)\ **Post date:** [March 19, 2015, 10:12am UTC](https://forums.chaos.com/t/radial-anisotropy-weird-result/128015/8 "2015-03-19T10:12:48Z")
> [@adamaf](#): > > I made this fairly easily with geometry. Just a slightly rough metal material. nice imageā€¦ any tips on how you did it? ---
**Author:** ![adamaf\_2](https://avatars.discourse-cdn.com/v4/letter/a/aca169/32.png) [@adamaf\_2](https://forums.chaos.com/u/adamaf_2)\ **Post date:** [March 19, 2015, 10:40am UTC](https://forums.chaos.com/t/radial-anisotropy-weird-result/128015/9 "2015-03-19T10:40:24Z")
I modelled the grooves. I know not the ideal solution to all objects that need anistropic reflection, but this was going to be viewed quite closely and it didnā€™t actually take much effort. Iā€™ll try and find the model and post it when I get home later. ---
**Author:** ![adamaf\_2](https://avatars.discourse-cdn.com/v4/letter/a/aca169/32.png) [@adamaf\_2](https://forums.chaos.com/u/adamaf_2)\ **Post date:** [March 19, 2015, 1:17pm UTC](https://forums.chaos.com/t/radial-anisotropy-weird-result/128015/10 "2015-03-19T13:17:47Z")
Hereā€™s the model if itā€™s useful to anyone. [knob.zip](https://forums.chaos.com/uploads/short-url/Ar9qjxeFmMMd7WFrrQfmIGCFWvl.zip) (818 KB) ---
**Author:** ![agentdark45](https://avatars.discourse-cdn.com/v4/letter/a/f14d63/32.png) [@agentdark45](https://forums.chaos.com/u/agentdark45)\ **Post date:** [March 19, 2015, 2:53pm UTC](https://forums.chaos.com/t/radial-anisotropy-weird-result/128015/11 "2015-03-19T14:53:35Z")
> [@adamaf](#): > > I made this fairly easily with geometry. Just a slightly rough metal material. Thatā€™s pretty cool man, could the same effect be achieved with a high res normal map? ---
**Author:** ![adamaf\_2](https://avatars.discourse-cdn.com/v4/letter/a/aca169/32.png) [@adamaf\_2](https://forums.chaos.com/u/adamaf_2)\ **Post date:** [March 19, 2015, 3:12pm UTC](https://forums.chaos.com/t/radial-anisotropy-weird-result/128015/12 "2015-03-19T15:12:49Z")
I donā€™t see why not. Give it a try! ---
**Author:** ![Juraj\_Talcik](https://avatars.discourse-cdn.com/v4/letter/j/ecccb3/32.png) [@Juraj\_Talcik](https://forums.chaos.com/u/Juraj_Talcik)\ **Post date:** [March 19, 2015, 5:34pm UTC](https://forums.chaos.com/t/radial-anisotropy-weird-result/128015/13 "2015-03-19T17:34:45Z")
> [@agentdark45](#): > > > [@adamaf](#): > > > > I made this fairly easily with geometry. Just a slightly rough metal material. > > Thatā€™s pretty cool man, could the same effect be achieved with a high res normal map? I use this one (attachment) andā€¦honestly, it samples badly. From distance looks like some noisy messā€¦samples forever esp. in interiors, and from close-upā€¦I guess ok but itā€™s hardly perfect. This is the one thing where adaptivity would help greatest, but also some improvement for micro detail bump maps sampling like that recent research paper that was posted here. ![radial_normalmap.jpg](https://europe1.discourse-cdn.com/chaosprd/original/3X/4/e/4e3f9c6b628889291dbc77b632324ab569cae18a.jpeg) ---
**Author:** ![PVDHP](https://avatars.discourse-cdn.com/v4/letter/p/ccd318/32.png) [@PVDHP](https://forums.chaos.com/u/PVDHP)\ **Post date:** [October 3, 2015, 1:31pm UTC](https://forums.chaos.com/t/radial-anisotropy-weird-result/128015/14 "2015-10-03T13:31:59Z")
It just doesnā€™t work even with model adamaf gave us? I wasnā€™t able to do a good anisotropy with mental ray, and corona, but it was very easy to do with vray. What Iā€™m doing wrong? ---
**Author:** ![maru](https://dub1.discourse-cdn.com/chaosprd/user_avatar/forums.chaos.com/maru/32/15975_2.png) [@maru](https://forums.chaos.com/u/maru)\ **Post date:** [October 5, 2015, 10:44am UTC](https://forums.chaos.com/t/radial-anisotropy-weird-result/128015/15 "2015-10-05T10:44:08Z")
In the newest daily builds anisotropy is handled a bit different and it has two modes - local and uvw. You can check it out. Here is a comparison: ![12-aniso.jpg](https://europe1.discourse-cdn.com/chaosprd/original/3X/6/c/6c3a2b6512210d06d1ac831f7655dc30030b9426.jpeg) ![13-local.jpg](https://europe1.discourse-cdn.com/chaosprd/original/4X/d/3/d/d3d59e4cfbba7bf14f0b247cdc8f0c28db91fbc6.jpeg) ![13-uvw.jpg](https://europe1.discourse-cdn.com/chaosprd/original/3X/a/5/a5cfa76174b3bd884d3ac79881ef7c2a798a1795.jpeg) ---
**Author:** ![telemix](https://avatars.discourse-cdn.com/v4/letter/t/d07c76/32.png) [@telemix](https://forums.chaos.com/u/telemix)\ **Post date:** [October 5, 2015, 7:12pm UTC](https://forums.chaos.com/t/radial-anisotropy-weird-result/128015/16 "2015-10-05T19:12:34Z")
> [@maru](#): > > In the newest daily builds anisotropy is handled a bit different and it has two modes - local and uvw. You can check it out. Here is a comparison: Good news, it is very necessary. Šnisotropy can not be used properly without local space mode. This is especially important for the animation. ![anisotropy.jpg](https://europe1.discourse-cdn.com/chaosprd/original/3X/b/4/b47fd9287e7cf13fb09b872163a578ca9bd5e2c6.jpeg)