fix(lines): working OIT for lines!

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

src/nodes/drawable/line.wgsl

@@ -14,6 +14,9 @@
     pbr_functions::{apply_pbr_lighting, main_pass_post_lighting_processing},
 }
 #endif
+#ifdef OIT_ENABLED
+#import bevy_core_pipeline::oit::oit_draw
+#endif
 
 struct LineMaterial {
     unused: u32,
@@ -51,5 +54,10 @@ fn fragment(
     out.color = main_pass_post_lighting_processing(pbr_input, out.color);
 #endif
 
+#ifdef OIT_ENABLED
+    oit_draw(in.position, out.color, false);
+    discard;
+#else 
     return out;
+#endif
 }

src/nodes/drawable/lines.rs

@@ -49,7 +49,7 @@ impl MaterialExtension for LineExtension {
 	}
 
 	fn alpha_mode() -> Option<AlphaMode> {
-		Some(AlphaMode::Opaque)
+		Some(AlphaMode::Blend)
 	}
 }