# nodeMaterial not work on ios (windows macos android all ok) **URL:** \ **Category:** Bugs\ **Tags:** material, nme, ios\ **Created:** [June 16, 2022, 2:02pm UTC](https://forum.babylonjs.com/t/nodematerial-not-work-on-ios-windows-macos-android-all-ok/31428 "2022-06-16T14:02:56Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![noobakong](https://sea2.discourse-cdn.com/flex024/user_avatar/forum.babylonjs.com/noobakong/32/25095_2.png) [@noobakong](https://forum.babylonjs.com/u/noobakong)\ **Post date:** [June 16, 2022, 2:02pm UTC](https://forum.babylonjs.com/t/nodematerial-not-work-on-ios-windows-macos-android-all-ok/31428/1 "2022-06-16T14:02:56Z")
first i love babylon very mush it is very cool but i I have a problem [this pg](https://www.babylonjs-playground.com/#9AKZJK#35) work on windowsPC macOs and android very well, but on ios the face is show black ┭┮﹏┭┮ (iphone13pro and iphone11 and ipad all is wrong) > **[Babylon.js Playground](https://www.babylonjs-playground.com/#9AKZJK%2335)** > > Babylon.js playground is a live editor for Babylon.js WebGL 3D scenes The main thing to do is to realize the transformation of face (mouth color, eye color, eyebrow) through node material. i find the texture show differently on Android and ios, ![lADPJv8gUC4bZXTNC9DND8A_4032_3024](https://us1.discourse-cdn.com/flex024/uploads/babylonjs/original/3X/4/1/414e6166d374099e5e638f315f21d0882b946e2d.jpeg) Can you see anything Thank you very, very much ---
**Author:** ![sebavan](https://sea2.discourse-cdn.com/flex024/user_avatar/forum.babylonjs.com/sebavan/32/57_2.png) [@sebavan](https://forum.babylonjs.com/u/sebavan)\ **Post date:** [June 16, 2022, 2:23pm UTC](https://forum.babylonjs.com/t/nodematerial-not-work-on-ios-windows-macos-android-all-ok/31428/2 "2022-06-16T14:23:15Z")
My rough guess would be that the png you are using in your model are not compatible with ios somehow ☹ @bghgary might have an idea there ? ---
**Author:** ![noobakong](https://sea2.discourse-cdn.com/flex024/user_avatar/forum.babylonjs.com/noobakong/32/25095_2.png) [@noobakong](https://forum.babylonjs.com/u/noobakong)\ **Post date:** [June 16, 2022, 4:44pm UTC](https://forum.babylonjs.com/t/nodematerial-not-work-on-ios-windows-macos-android-all-ok/31428/3 "2022-06-16T16:44:16Z")
@sebavan Thank you for your quick answer i create [a new pg there](https://www.babylonjs-playground.com/#9AKZJK#37) ，It’s easier and more intuitive to see what the problem is. I’m looking forward to hearing someone has some idea to solve this problem 🙏🏻 on pc good ✅ ![image](https://us1.discourse-cdn.com/flex024/uploads/babylonjs/original/3X/6/b/6bdecbbb743f57693ccb1ca1fcf8d0d7baf6baff.jpeg) on ios bad ❌ ![image](https://us1.discourse-cdn.com/flex024/uploads/babylonjs/original/3X/1/a/1afcd4993406dbaec17eafc28a82c7d8767e6dbb.jpeg) > **[Babylon.js Playground](https://www.babylonjs-playground.com/#9AKZJK%2337)** > > Babylon.js playground is a live editor for Babylon.js WebGL 3D scenes ---
**Author:** ![sebavan](https://sea2.discourse-cdn.com/flex024/user_avatar/forum.babylonjs.com/sebavan/32/57_2.png) [@sebavan](https://forum.babylonjs.com/u/sebavan)\ **Post date:** [June 16, 2022, 8:01pm UTC](https://forum.babylonjs.com/t/nodematerial-not-work-on-ios-windows-macos-android-all-ok/31428/4 "2022-06-16T20:01:03Z")
yup, definitely looks like an ios bug only with premultiplied alpha pngs ☹ Could you open a bug on the webkit bug tracker ? ---
**Author:** ![bghgary](https://sea2.discourse-cdn.com/flex024/user_avatar/forum.babylonjs.com/bghgary/32/48532_2.png) [@bghgary](https://forum.babylonjs.com/u/bghgary)\ **Post date:** [June 16, 2022, 9:49pm UTC](https://forum.babylonjs.com/t/nodematerial-not-work-on-ios-windows-macos-android-all-ok/31428/5 "2022-06-16T21:49:05Z")
If you update the image to set alpha to 1, it should work everywhere the same? ---
**Author:** ![noobakong](https://sea2.discourse-cdn.com/flex024/user_avatar/forum.babylonjs.com/noobakong/32/25095_2.png) [@noobakong](https://forum.babylonjs.com/u/noobakong)\ **Post date:** [June 17, 2022, 1:45am UTC](https://forum.babylonjs.com/t/nodematerial-not-work-on-ios-windows-macos-android-all-ok/31428/6 "2022-06-17T01:45:53Z")
【update the image to set alpha to 1】 by babylonb.js some api? or by image making of designer？ Could you be a little more specific, please 🙂 ---
**Author:** ![bghgary](https://sea2.discourse-cdn.com/flex024/user_avatar/forum.babylonjs.com/bghgary/32/48532_2.png) [@bghgary](https://forum.babylonjs.com/u/bghgary)\ **Post date:** [June 17, 2022, 5:10pm UTC](https://forum.babylonjs.com/t/nodematerial-not-work-on-ios-windows-macos-android-all-ok/31428/7 "2022-06-17T17:10:04Z")
The latter. Edit the image with an image editing software, e.g., Gimp. ---
**Author:** ![noobakong](https://sea2.discourse-cdn.com/flex024/user_avatar/forum.babylonjs.com/noobakong/32/25095_2.png) [@noobakong](https://forum.babylonjs.com/u/noobakong)\ **Post date:** [June 18, 2022, 3:49am UTC](https://forum.babylonjs.com/t/nodematerial-not-work-on-ios-windows-macos-android-all-ok/31428/8 "2022-06-18T03:49:19Z")
Ok~ designers changed the alpha channel information in PNG so that alpha information is not removed by certain mechanisms in ios thanks for your positive response @sebavan@bghgary thanks ~