Draw props whose materials a map borrows from common_mp

A map zone streams the materials it shares with common_mp as ",name"
references: stubs with no textures and no technique set. Since
capture_material refuses a material without a technique set, the slot of
such a reference was never bound and every model surface on it was
dropped: 97 of the 14551 map model surfaces on mp_terminal and 28 of the
14125 on mp_favela, among them a surface of the wall fan cs_wallfan1 and
one of the air conditioner com_ex_airconditioner.

When the capture refuses a reference, the slot is now bound to the real
material of the same name and namespace, which the common pool already
holds. A reference with no real counterpart stays unbound as before.

",mc/shadowcaster" references bind now too, so scene_lit_pass_material
skips shadow-only materials for script models and dyn ents, as the static
model path already does.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

crates/asset_material/src/material_catalog.rs

@@ -937,6 +937,21 @@ impl MaterialCatalog {
         )
     }
 
+    fn reference_material_index(&self, s: &ZoneStream<'_>) -> Option<usize> {
+        let name = s
+            .latest_material()?
+            .name
+            .and_then(|name| s.cstr(name).ok())
+            .map(AssetRef::decode)?;
+        if !name.is_reference() {
+            return None;
+        }
+        let namespace = self.capture_ns?;
+        self.materials
+            .iter()
+            .position(|m| m.namespace == namespace && m.name.is_real() && m.name.same_name(&name))
+    }
+
     fn capture_material(&mut self, s: &ZoneStream<'_>) -> Option<usize> {
         let geometry = s.latest_material()?;
         let name = geometry
@@ -1299,7 +1314,10 @@ impl AssetLinkSink for MaterialCatalog {
             }
             AssetType::Material => {
                 let header = s.latest_material().and_then(|g| g.header);
-                let Some(index) = self.capture_material(s) else {
+                let Some(index) = self
+                    .capture_material(s)
+                    .or_else(|| self.reference_material_index(s))
+                else {
                     self.capture_gaps += 1;
                     return Ok(());
                 };

crates/render_anim/src/anim/model_materials.rs

@@ -111,6 +111,9 @@ pub fn scene_lit_pass_material(
     authored: assets::MaterialIndex,
 ) -> Option<SmodelPassMaterial> {
     let world_material = tess.catalog().derived(authored)?;
+    if world_material.shadow_only {
+        return None;
+    }
     let ordinal = tess
         .catalog()
         .parts()