autogen cached models

internal/project/project.go

@@ -1458,7 +1458,7 @@ func validateGeneratedConfig(cfg GeneratedConfig) []error {
 		}
 		failures = append(failures, validateGlobList(fieldPrefix+".include_datasets", top2da.IncludeDatasets)...)
 		switch strings.TrimSpace(top2da.Autogen.Mode) {
-		case "parts_rows":
+		case "parts_rows", "cachedmodels_rows":
 		case "":
 			failures = append(failures, fmt.Errorf("%s.autogen.mode is required", fieldPrefix))
 		default:

internal/project/project_test.go

@@ -1078,6 +1078,20 @@ func TestValidateLayoutAcceptsGeneratedTopData2DAConfig(t *testing.T) {
 							},
 						},
 					},
+					{
+						ID:              "cachedmodels",
+						Source:          "topdata",
+						Output:          "{paths.cache}/generated-assets/cachedmodels-2da",
+						IncludeDatasets: []string{"cachedmodels"},
+						PackageRoot:     "vfxs",
+						Autogen: AutogenConsumerConfig{
+							ID:      "cachedmodels",
+							Mode:    "cachedmodels_rows",
+							Root:    "vfxs",
+							Include: []string{"head_accessories/**/*.mdl", "head_features/**/*.mdl"},
+							Derive:  AutogenDeriveConfig{Kind: "model_stem", GroupFrom: "first_path_segment"},
+						},
+					},
 				},
 			},
 		},