gindemit/unity-rlottie

WebGL support

H-Maverick opened this issue · 11 comments

H-Maverick commented

Will it be any support for WebGL ?

gindemit commented

Hello, thanks for the question!
I haven't tried to build the plugin for web gl. I am affraid that it is not possible since the rlottie cpp library uses a lot of multi threading. But I'll write done into my todo list to try it out.

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H-Maverick commented

Thanks a lot, i hope it is supported

enigmablue commented

would love this too.

enigmablue commented

This error on WebGL

WebGLBuild.framework.js:3 DllNotFoundException: Unable to load DLL 'LottiePlugin'. Tried the load the following dynamic libraries:

But i think we already know that

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gilzoide commented

WebGLBuild.framework.js:3 DllNotFoundException: Unable to load DLL 'LottiePlugin'. Tried the load the following dynamic libraries:

WebGL native plugins are static libraries and should be using the special __Internal DLL name, just as it's done for iOS.

gilzoide commented

I am affraid that it is not possible since the rlottie cpp library uses a lot of multi threading.

It seems you must build rlottie with LOTTIE_THREAD_SUPPORT defined for multithreading to be used. I don't know how the WebGL static library was built, but if threading support is disabled in it, it's quite possible that it will just work.

zaixiaoqu commented

Hello everyone, I've searched all over the search engines and haven't found a good solution. Have you solved it?

gindemit commented

Hello @zaixiaoqu, I spend few days on it long time ago without any success. I would love to add the web gl support to the plugin.

zaixiaoqu commented

WebGLBuild.framework.js:3 DllNotFoundException: Unable to load DLL 'LottiePlugin'. Tried the load the following dynamic libraries:

WebGL native plugins are static libraries and should be using the special __Internal DLL name, just as it's done for iOS.

I am affraid that it is not possible since the rlottie cpp library uses a lot of multi threading.

It seems you must build rlottie with LOTTIE_THREAD_SUPPORT defined for multithreading to be used. I don't know how the WebGL static library was built, but if threading support is disabled in it, it's quite possible that it will just work.

Hello @gindemit, Thank you so much. I used @gilzoide 's open source code (https://github.com/gilzoide/unity-lottie-player), It successfully runs in the webgl environment. I think @gilzoide should have solved the problem according to the two methods he provided himself above.

gindemit commented

Oh, thanks @zaixiaoqu for pointing this out. I will take a shot again to solve this problem.

gilzoide commented

Yeah, I had to disable rlottie's threading support (that is, build it without LOTTIE_THREAD_SUPPORT defined) for it to not crash the game on WebGL. On CMake, setting LOTTIE_THREAD option to OFF on web builds should do the trick.
That plus using [DllImport("__Internal")] should work =]

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