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ptrumpis / snap-camera-server

An alternative, self-hosted solution that allows you to continue using Snap Camera with all Snapchat filters after its shutdown on January 25, 2023.
https://github.com/snapcamera
MIT License
321 stars 35 forks source link

Core: Unknown blend mode #84

Closed tinkertims closed 9 months ago

tinkertims commented 9 months ago

Docker throws this error: Invalid argument, expected lens object

System Information:

Log: Log.txt

Lens share link:** https://www.snapchat.com/unlock/?type=SNAPCODE&uuid=bba25a0521164a52bdfc70137d6e18da&metadata=01

ptrumpis commented 9 months ago

The lens helped me to discover a bug in snap lens tool.

But the real problem here is that this lens is using some assets with an "unsuported blend mode". Which will result in log.txt error messages like:

Core: Unknown blend mode 
"Lens not loaded exception: Unknown blend mode"

I managed to fix the blend mode manually. This will be done automatically in the next major release of snap camera server. And it will be an upcoming feature of snap lens tool.

No Filter Active No Filter Filter Active with Blend Mode (Normal) Filter with BlendMode (Normal)

Here is the fixed lens for download, you would have to manually upload it to server. PAEyesBlendFixed.zip

If you are the creator of the lens, you should be able to switch to another blend mode in lens studio. And then re-publish the lens.

Here is a list of supported blend modes:

BlendMode Value Expression
Normal 0 SrcAlpha, OneMinusSrcAlpha
MultiplyLegacy [DEPRECATED] 1 DstColor, OneMinusSrcAlpha
AddLegacy [DEPRECATED] 2 One, One
Screen 3 One, OneMinusSrcColor
PremultipliedAlpha 4 One, OneMinusSrcAlpha
AlphaToCoverage 5 Blend Disabled
Disabled 6 Blend Disabled
Add 7 SrcAlpha, One
AlphaTest 8 Blend Disabled
ColoredGlass 9 Blend Disabled
Multiply 10 DstColor, Zero
Min 11 One, One
Max 12 One, One