MacOS - DllNotFoundException: webp

[NikMikk]

Hi!

We're using your wrapper inside our game and it works wonders, except on macOS. The .dll seems to not be included sometimes and sometimes it is but super rare.

Any thoughts on why this might happen?

[NikMikk]

It works on certain macOS devices but won't load on older laptops it seems, is it the DLL_NAME that works differently on older devices?
Uploading Crash Report DllNotFoundException: Unable to load DLL 'webp': The specified module could not be found. at WebP.Texture2DExt.EncodeToWebP (UnityEngine.Texture2D lTexture2D) [0x00000] in <00000000000000000000000000000000>:0

[netpyoung]

well.. currently I built native library only x86_64 & arm64 versions for macOS.

• here is buildscript for that : https://github.com/netpyoung/prebuilt-libwebp/blob/93d292d2d4afd5f13b6bd1049e0d8bc3f3a098f2/Rakefile#L203

Which mac model are you using for? Is that x86 marchine? and which version of unity.webp?

[NikMikk]

Our test laptop is a MacBook Air Early 2014 running Sierra 10.12.6 which is a x86_64 bit operating system

[netpyoung]

well.
That issue seems be associated with this line : https://github.com/netpyoung/prebuilt-libwebp/blob/93d292d2d4afd5f13b6bd1049e0d8bc3f3a098f2/Rakefile#L214

I don't rememeber why I set minimum version 13.0. If modify script to minimum version to 10.12, It may will be work except webp's library build enviornment support that.

[NikMikk]

Ohh I see, that makes sense that it's not loading in at all haha.

So the webp's library build environment doesn't support anything lower than 13.0?

[netpyoung]

So the webp's library build environment doesn't support anything lower than 13.0?

Not sure, It need to check though out compiling it. but when I googling that It can be work, I will modify build script to 10.12 to check.

[NikMikk]

Awesome, thanks a ton!

[NikMikk]

Could the flag be removed completely? So it works on all 64 bit macOS devices

[netpyoung]

When remove that flag It gain compatibility but not can be impact on some perfomances. so instead of to remove that flag, I just down min version to 10.12