Restore the Int8 Capability

Author: DJMcNab

examples/runners/wgpu/builder/src/main.rs

@@ -28,7 +28,12 @@ fn build_shader(
 fn main() -> Result<(), Box<dyn Error>> {
     build_shader("../../../shaders/sky-shader", true, &[])?;
     build_shader("../../../shaders/simplest-shader", false, &[])?;
-    build_shader("../../../shaders/compute-shader", false, &[])?;
+    // We need the int8 capability for using `Option`
+    build_shader(
+        "../../../shaders/compute-shader",
+        false,
+        &[Capability::Int8],
+    )?;
     build_shader("../../../shaders/mouse-shader", false, &[])?;
     Ok(())
 }