add exoplayer node sample

[green7night]

No description provided.

[erikhric]

Kudos on that!

[erikhric]

Does it support alpha channel in .webm?

[green7night]

@erikhric
Support is not possible because the Exoplayer does not support the alpha channel.
-> google/ExoPlayer#7789

[erikhric]

Was the original scene form video node using exoplayer too? I saw there is an option to use ChromaKeying materia to achive transparency. Can we also use matte masks? Simply synchronize 2 videos - mask and content?

[erikhric]

What about displaying transparent webview that plays transparent video. Which approach seems doable to you?

[ThomasGorisse]

Thanks @green7night !
Can you please merge main and replace the VideoMaterial modified from your version here: https://github.com/SceneView/sceneview-android/blob/dfbe7cd355bf404b9adcd466883ef6798f8a4da5/sceneview/src/main/java/io/github/sceneview/material/VideoMaterial.kt ?

[erikhric]

Seems like VideoTexture supported alpha channel. It has RGBA pixel format: https://github.com/SceneView/sceneview-android/blob/dfbe7cd355bf404b9adcd466883ef6798f8a4da5/sceneview/src/main/java/io/github/sceneview/texture/VideoTexture.kt

[ThomasGorisse]

The texture yes but not the player.
You can try replacing the alpha channel with a RGB one and use it as chroma key.