Hi! Does anyone know how to make masks work in Lottie? Everything is previewing as expected in AE, but the masks disappear in Lottie. Is there a fix for this? I haven’t found a solution that works yet, without having to fix the code (which is not an option). Help would be greatly appreciated 
In case anyone else is having this issue, I found a possible solution. I masked a pre-comp and it worked in Lottie preview. Without the pre-comp, it wasn’t recognizing the mask for some reason.
1 Like
I never had such issue. I mask the object or an element or comp with separate shape layer and add Alpha Matte as normal or inverse depends upon situations. But Luma Matte never worked for me.
1 Like
If you are using masks to crop elements they may not work. Masks don’t work generally when you use a vector layer with the turned on “collapse transformations”. It may also not show up when you export through bodymovin. Precomping or using alpha mattes is usually a way to go, or convert your illustrator file to shapes, then you shouldn’t have issues using masks.
3 Likes
@gbiloski Can you kindly explain more details. I am still having the issue. Everything which is inside the mask does not get exported when I choose json. #loosingmymind
Hi, I’m also experiencing the same problem, but for me, the mask is working it’s just that the feather option does not work on the mask property. when I export its just straight crop it without the feather.
I find feathering and shadow options don’t always (or maybe never?!) work with Lottie. I’ve been using pngs where needed to resolve this. Luckily my animation was simple enough that I could use pngs.
Hi @gbiloski would it be possible if you could explain how you use PNG files in your Lottie animations as the feather and shadow for drop shadows? I am struggling to find a solid workflow for rendering drop shadows in Lottie. I know the effect and layer styles drop shadow options will not render in Lottie. So your technique sounds interesting, I would like to learn more.
Hi to everyone! I’m trying to export my animations that it is based on a multiple masks into a single layer. Once I try exporting this, the pluging just doesn’t process the animation and quits. I believe it is because these pile of mask might need to be as shapes, but I don’t know exactly how to make it in mass. Any idea? Thank you so much!
Have you figured out a solution to this? I would love to test out your project and troubleshoot the problem.
@isionindustriesoffic I never really have trouble exporting with masks, but I would try doing Alpha or Inverted tests. I did make sure that in the Lottie Settings I turned on exporting hidden layers, since the masks will be “Eyed Off”
I was having this issue because I had “inverted” checked on a mask that was set to “add”. When I unchecked “inverted” and then changed the mask setting to “subtract” it worked just fine.
1 Like
In case anyone else is having this issue, I found a possible solution. I masked a pre-comp and it worked in Lottie preview. Without the pre-comp, hope it will help you to solve your issue. mostly i used lottie for my writing services “animation” purpose.
1 Like
Hi @gbiloski I have the same issue: I need to export a logo animation for Android (AVD) and iOS (Lottie) - I followed your suggestion to pre-comp but still doesn’t work. Could you please let me know the exact steps? (I never use AF, and the animation was made by someone else). Thanks!
Hi, I had the same issue. I had the mask in pre-comp but still didn’t work. To resolve it, check " Export hidden layers" in the Lottie plugin settings.
Share the screenshot of the object or shape, masked. And I would prefer and suggest the Bodymovin plugin instead Lottie.