How to Build Unity Game using UnityGLTF (Shaders problem)?

[Vytek]

This is my Unity config:

Versions
Unity: 2017.3.1f1 (fc1d3344e6ea)
VRTK: 3.3.0 (may not be correct if source is GitHub)
SteamVR: 1.2.3
VR Settings
Standalone: None, OpenVR
Scripting Define Symbols
Standalone: VRTK_DEFINE_SDK_STEAMVR;VRTK_DEFINE_STEAMVR_PLUGIN_1_2_1_OR_NEWER;VRTK_DEFINE_STEAMVR_PLUGIN_1_2_2_OR_NEWER
WSA: VRTK_DEFINE_SDK_WINDOWSMR
WSA: VRTK_DEFINE_SDK_WINDOWSMR

I am workin on:
Version system: macOS 10.13.6 (17G65)
Version kernel: Darwin 17.7.0

In Editor all works fine. But when I am trying to build my demo I have in log:

07-20_08-56-30: Console Log (Exception): ShaderNotFoundException: GLTF/PbrMetallicRoughness not found. Did you forget to add it to the build?
UnityGLTF.StandardMap..ctor (System.String shaderName, System.Int32 MaxLOD) (at <6e2e72fb449c4779bd7a6f55349ab1e6>:0)
UnityGLTF.MetalRough2StandardMap..ctor (System.String shaderName, System.Int32 MaxLOD) (at <6e2e72fb449c4779bd7a6f55349ab1e6>:0)
UnityGLTF.MetalRoughMap..ctor (System.Int32 MaxLOD) (at <6e2e72fb449c4779bd7a6f55349ab1e6>:0)
UnityGLTF.GLTFSceneImporter.ConstructMaterial (GLTF.Schema.Material def, System.Int32 materialIndex) (at <6e2e72fb449c4779bd7a6f55349ab1e6>:0)
UnityGLTF.GLTFSceneImporter+c__Iterator11.MoveNext () (at <6e2e72fb449c4779bd7a6f55349ab1e6>:0)
UnityEngine.SetupCoroutine.InvokeMoveNext (System.Collections.IEnumerator enumerator, System.IntPtr returnValueAddress) (at <4b58939e897a4c34942efe344ae250a9>:0)

So I am trying to include shader in "Graphics" settings as file:

But the build doesn't works. Unity freeze on creating globalgamemanagers.assets:
https://answers.unity.com/questions/918996/unity-5-freezes-while-building.html

Now I include GLTF/PbrMetallicRoughness.shader in Assets/Resources dir, but I have seen that PBR Materials doesn't work fine :_(

How to fix the issue? I would like to write a little guide of how create a perfect build with UnityGLTF.

Thanks you!

[Vytek]

Including GLTF/PbrMetallicRoughness.shader delete error message but something not work fine.

This is in player:

THIS THE CORRECT VISUALIZATION IN EDITOR:

This test is done with:

Versions
Unity: 2017.4.5f1 (89d1db9cb682)
VRTK: 3.3.0 (may not be correct if source is GitHub)
SteamVR: 1.2.3
VR Settings
Standalone: None, OpenVR
Scripting Define Symbols
Standalone: VRTK_DEFINE_SDK_STEAMVR;VRTK_DEFINE_STEAMVR_PLUGIN_1_2_1_OR_NEWER;VRTK_DEFINE_STEAMVR_PLUGIN_1_2_2_OR_NEWER
WSA: VRTK_DEFINE_SDK_WINDOWSMR
WSA: VRTK_DEFINE_SDK_WINDOWSMR

[Vytek]

GLTF Models of test:
https://gateway.ipfs.io/ipfs/QmerSDvd9PTgcbTAz68rL1ujeCZakhdLeAUpdcfdkyhqyx
https://gateway.ipfs.io/ipfs/QmPqQ7RANMBygjFREHhF41LDZ6zypHc4G3y3q4uuAyacmu

PBR Texture work fine in Editor NOT in Player Build:

[Vytek]

Perhaps I found how to fix the issue.

This works with (but I suppose also for other Unity versions):

1. NOT USE: NOT include GLTF/PbrMetallicRoughness.shader in (Edit -> Project Settings -> Graphics) This configuration freeze Unity building in "globalgamemanagers.assets". You had to kill the process and restart Unity Editore.

2. NOT USE: copy GLTF/PbrMetallicRoughness.shader in Assets/Resources directory fix the log error, but the Unity Player not renderer PBR or alpha texture correctly (see previous images on other posts).

3. CORRECT: Create a ShaderVariants (Edit -> Project Settings -> Graphics) Save to Asset and load your shadervariants. Check in Editor Inspector if your shadervariants contains GLTF/PbrMetallicRoughness.shader , if not add it ;-)

NOW ALL WORKS!

Please confirm if my fix is corret and I will close the issue here.

[blgrossMS]

Sounds good. It would be great if you could send out a PR

[alt-ctrl-dev]

This works on 2018.2. Managed to build the app for android!

[Vytek]

As request by @blgrossMS:

#213

[riccardogiorato]

I get black model with no textures after testing your steps @Vytek what am I doing wrong? The console/log doesn't give any error on mac or android.

[Vytek]

Which version of Unity? Check shader Variant perhaps it use also other shader? If not add it and retry!
Check my PR: #213
If you have problem contact me on Telegram: https://web.telegram.org/#/im?p=@Vytek

[riccardogiorato]

I have just fixed my problem with the black textures on Android and Mac. I had to keep the shaders loaded in the build settings.

This flag should be required? By enabling it and fixing the load of the shaders will create any problem?

This issue is related to this other issue too, users might get black textures even after following the previous steps due to GLTF embedded model: #214

[Vytek]

I think so ;-)

[riccardogiorato]

Think what?

[marcspraragen]

Noting that if you do use the saved shadervariants asset approach, the file needs to be refreshed if any new variants are introduced in GLTF files (MASK and BLEND alpha modes, in my case). Otherwise Unity might not include the new variants when building to Android.

[pfcDorn]

Please update to the latest version and open a new issue if the problem persists. Thanks!