refactor(openxr): make environment blend modes a completely runtime feature, like it should and remove the fb_passthrough plugin from the default oxr plugins as quests now support blendmode based passthrough

Signed-off-by: Schmarni <marnistromer@gmail.com>

crates/bevy_openxr/examples/3d_scene.rs

@@ -13,10 +13,11 @@ fn main() -> AppExit {
             DefaultPlugins.build().disable::<PipelinedRenderingPlugin>(),
         ))
         .insert_resource(OxrSessionConfig {
-            blend_modes: Some(vec![
+            blend_mode_preference: vec![
                 EnvironmentBlendMode::ALPHA_BLEND,
+                EnvironmentBlendMode::ADDITIVE,
                 EnvironmentBlendMode::OPAQUE,
-            ]),
+            ],
             ..default()
         })
         .add_plugins(bevy_mod_xr::hand_debug_gizmos::HandGizmosPlugin)

crates/bevy_openxr/examples/android/Cargo.toml

@@ -92,6 +92,6 @@ categories = [
 # https://developer.android.com/studio/publish/app-signing
 #
 # !! IMPORTANT !!
-[package.metadata.android.signing.release]
-path = "./hotham_examples.keystore"
-keystore_password = "chomsky-vigilant-spa"
+# [package.metadata.android.signing.release]
+# path = "./hotham_examples.keystore"
+# keystore_password = "chomsky-vigilant-spa"

crates/bevy_openxr/examples/android/src/lib.rs

@@ -16,6 +16,7 @@ fn main() {
             ..default()
         }))
         .add_plugins(bevy_mod_xr::hand_debug_gizmos::HandGizmosPlugin)
+        .add_plugins(bevy_mod_openxr::features::fb_passthrough::OxrFbPassthroughPlugin)
         .add_systems(Startup, setup)
         .add_systems(Update, modify_msaa)
         .insert_resource(AmbientLight {

crates/bevy_openxr/examples/overlay.rs

@@ -19,12 +19,13 @@ fn main() {
             ..OxrInitPlugin::default()
         }))
         .insert_resource(OxrSessionConfig {
-            blend_modes: Some({
+            blend_mode_preference: {
                 vec![
                     EnvironmentBlendMode::ALPHA_BLEND,
+                    EnvironmentBlendMode::ADDITIVE,
                     EnvironmentBlendMode::OPAQUE,
                 ]
-            }),
+            },
             ..OxrSessionConfig::default()
         })
         .insert_resource(ClearColor(Color::NONE))