fix: shadow light space calc

Cargo.toml

@@ -16,6 +16,7 @@ exclude = ["./shaders"]
 resolver = "2"
 
 [workspace.dependencies]
+acorn_prng = "3.0"
 assert_approx_eq = "1.1.0"
 async-channel = "1.8"
 bytemuck = { version = "1.13.0", features = ["derive"] }

crates/renderling-build/src/lib.rs

@@ -93,7 +93,12 @@ fn wgsl(spv_filepath: impl AsRef<std::path::Path>, destination: impl AsRef<std::
     let module = naga::front::spv::parse_u8_slice(&bytes, &opts).unwrap();
     let mut validator =
         naga::valid::Validator::new(Default::default(), naga::valid::Capabilities::empty());
-    let info = validator.validate(&module).unwrap();
+    let info = validator.validate(&module).unwrap_or_else(|e| {
+        panic!(
+            "Could not validate '{}': {e}",
+            spv_filepath.as_ref().display(),
+        )
+    });
     let wgsl =
         naga::back::wgsl::write_string(&module, &info, naga::back::wgsl::WriterFlags::empty())
             .unwrap();

crates/renderling/Cargo.toml

@@ -72,6 +72,7 @@ wgpu = { workspace = true, features = ["spirv"] }
 winit = { workspace = true, optional = true }
 
 [dev-dependencies]
+acorn_prng.workspace = true
 assert_approx_eq = {workspace = true}
 ctor = "0.2.2"
 env_logger = {workspace = true}