Build with Obfuscation crashes due to Filament

[TogayHanKaya]

Hi all,

I am getting crash if I enable obfuscation in the project.

Using version 1.20.5

E/Filament: Panic in filament::MaterialParser *filament::createParser(filament::backend::Backend, const void *, size_t):69 reason: Material version mismatch. Expected 17 but received 0.

E/Filament: A/libc: Fatal signal 6 (SIGABRT), code -6 (SI_TKILL) in tid 8292 (.thk.dev), pid 8292 (.thk.dev)

Has anyone faced similar issue?

[ThomasGorisse]

Hi,

You can have a look in here for excluded rules: https://github.com/SceneView/sceneform-android/blob/master/core/lib-proguard-rules.pro Actually they should already been excluded from your project but I don't know why they are not forwarded form the lib.

[TogayHanKaya]

Thanks for the fast response Thomas.

Added the two rules: -keep class com.google.ar.core.** { *; } -keep class com.google.android.filament.** { *; }

Unfortunately kept the same error.

Are you facing similar issue on your end?

[RGregat]

Does this work?

-keep class com.google.ar.sceneform.** { *; }
-keep class com.google.android.filament.** { *; }
-keep class com.google.ar.core.** { *; }
-keepclassmembers class com.google.ar.sceneform.** { *; }
-keepclassmembers class com.google.android.filament.** { *; }
-keepclassmembers class com.google.ar.core.** { *; }

[TogayHanKaya]

Got the same error @RGregat.

[RGregat]

• Can you checkout 1.20.4 and test?
• Is the error thrown without obfuscation?

It can be total unrelated but E/Filament: Panic in filament::MaterialParser *filament::createParser(filament::backend::Backend, const void *, size_t):69 reason: Material version mismatch. Expected 17 but received 0. looks like that the prebuilt materials are generated with a wrong version of Filamat.

[TogayHanKaya]

• Can you checkout 1.20.4 and test?

Error changed to:

A/libc: Fatal signal 6 (SIGABRT), code -6 (SI_TKILL) in tid 29459 (.thk.dev), pid 29459 (.thk.dev)

E/native: E0228 18:04:33.965109 29898 bundle_adjustment_initializer.cc:704] Measurements not available in all keyframes. At least one keyframe has no features in any of the cameras.

E/native: E0228 18:04:33.967180 29898 vio_initializer.cc:668] generic::internal: [SSBA Initialization] Failed to initialize the network.; Initializer's SSBA failed to produce a valid output.

E/native: E0228 18:04:34.055849 29898 bundle_adjustment_initializer.cc:704] Measurements not available in all keyframes. At least one keyframe has no features in any of the cameras.

• Is the error thrown without obfuscation? Withoug obfuscation, works as expected on both 1.20.4 and 1.20.5 versions.

[ThomasGorisse]

Sorry, I didn't see the logs. That's not an obfucation issue but a wrong filamat compiled version.

[TogayHanKaya]

@ThomasGorisse I am not sure but wanted to learn;

if it is a wrong filamat complied version, shouldn't it be crashing on builds without obfuscation too?

[ThomasGorisse]

Can you provide some code and your obfuscation rules? It looks like if your rules are excluding the .filamat in the asset folder.

[TogayHanKaya]

-keep class com.google.ar.sceneform.** { *; } -keep class com.google.android.filament.** { *; } -keep class com.google.ar.core.** { *; } -keepclassmembers class com.google.ar.sceneform.** { *; } -keepclassmembers class com.google.android.filament.** { *; } -keepclassmembers class com.google.ar.core.** { *; }

Could you please lead me what part of the code you need?

[ThomasGorisse]

Check your build folder to see the obfuscation result. The asset files should be kept and not compressed.

[tribetomi]

@ThomasGorisse

I am getting the same error when migrating from 1.20.5 -> 1.21.0

E/Filament: Panic in createParser:69 reason: Material version mismatch. Expected 21 but received 17.

With or without obfuscation result is the same and I don't see anything filament related in build folder.

Do you have any idea?

[ThomasGorisse]

@tribetomi You must recompile your .filamat files with the corresponding Filament version

[tribetomi]

@tribetomi You must recompile your .filamat files with the corresponding Filament version

Hey Thomas, yes I realise that but as I said I don't have any additional .mat or .filamat files. I am using library itself without any additional materials and I don't have .filamat in build folder for some reason. On version before everything build smoothly.

[ThomasGorisse]

Do you override the Filament version in your build.gradle?

[tribetomi]

No, but I use it as api so I share dependancy in several modules. (in none of them .filament is generated tho)

[ThomasGorisse]

Yep. But Sceneform has its own internal .filamat files that must be used with the same Filament version.

[tribetomi]

Hm, I'm aware of that but how can I update them?

As I said I'm only using com.gorisse.thomas.sceneform:sceneform:1.20.5 -> trying 1.21.0 Don't have any other filament dependancy where I set version to 17 or any material that I put manually

[ThomasGorisse]

Can you try running the sample project corresponding to your use case?

[tribetomi]

I get the same message :/

The only reason why I'm trying to update it to 1.21.0 is because after reopening ArFragment numerous times I get crash

Skipped image because max images have been acquired from ImageReader. A/DEBUG: signal 11 (SIGSEGV), code 1 (SEGV_MAPERR), fault addr 0x8 A/DEBUG: Cause: null pointer dereference

and I hope maybe latest version has ImageReader buffer fixed because of https://github.com/google-ar/arcore-android-sdk/issues/1262

It's the bug that you had last year but as I understand after reading sceneform classes is that fix should be also implemented in 1.20.5?

[ThomasGorisse]

Sorry about that, but all efforts are now made on SceneView and I'm not sure we will fix it on Sceneform

[tribetomi]

But is SceneView working with AugmentedFace?

I am asking because https://github.com/SceneView/sceneview-android/issues/74 ?

*(sorry for slight off-topic)

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