diff --git a/src/type_determiner.cc b/src/type_determiner.cc
index 2693925..d60ae9b 100644
--- a/src/type_determiner.cc
+++ b/src/type_determiner.cc
@@ -576,9 +576,15 @@
     return nullptr;
   }
 
+  // Most of these are floating-point general except the below which are only
+  // FP16 and FP32. We only have FP32 at this point so the below works, if we
+  // get FP64 support or otherwise we'll need to differentiate.
+  //   * radians
+  //   * degrees
+
   if (name == "round" || name == "roundeven" || name == "trunc" ||
       name == "fabs" || name == "fsign" || name == "floor" || name == "ceil" ||
-      name == "fract") {
+      name == "fract" || name == "radians" || name == "degrees") {
     if (params.size() != 1) {
       error_ = "incorrect number of parameters for " + name +
                ". Expected 1 got " + std::to_string(params.size());
@@ -606,6 +612,10 @@
       *id = GLSLstd450Ceil;
     } else if (name == "fract") {
       *id = GLSLstd450Fract;
+    } else if (name == "radians") {
+      *id = GLSLstd450Radians;
+    } else if (name == "degrees") {
+      *id = GLSLstd450Degrees;
     }
 
     return params[0]->result_type();
diff --git a/src/type_determiner_test.cc b/src/type_determiner_test.cc
index 1a7db6f..f12ea4b 100644
--- a/src/type_determiner_test.cc
+++ b/src/type_determiner_test.cc
@@ -1585,17 +1585,19 @@
                                param.name + ". Expected 1 got 3");
 }
 
-INSTANTIATE_TEST_SUITE_P(TypeDeterminerTest,
-                         ImportData_FloatTest,
-                         testing::Values(GLSLData{"round", GLSLstd450Round},
-                                         GLSLData{"roundeven",
-                                                  GLSLstd450RoundEven},
-                                         GLSLData{"trunc", GLSLstd450Trunc},
-                                         GLSLData{"fabs", GLSLstd450FAbs},
-                                         GLSLData{"fsign", GLSLstd450FSign},
-                                         GLSLData{"floor", GLSLstd450Floor},
-                                         GLSLData{"ceil", GLSLstd450Ceil},
-                                         GLSLData{"fract", GLSLstd450Fract}));
+INSTANTIATE_TEST_SUITE_P(
+    TypeDeterminerTest,
+    ImportData_FloatTest,
+    testing::Values(GLSLData{"round", GLSLstd450Round},
+                    GLSLData{"roundeven", GLSLstd450RoundEven},
+                    GLSLData{"trunc", GLSLstd450Trunc},
+                    GLSLData{"fabs", GLSLstd450FAbs},
+                    GLSLData{"fsign", GLSLstd450FSign},
+                    GLSLData{"floor", GLSLstd450Floor},
+                    GLSLData{"ceil", GLSLstd450Ceil},
+                    GLSLData{"fract", GLSLstd450Fract},
+                    GLSLData{"radians", GLSLstd450Radians},
+                    GLSLData{"degrees", GLSLstd450Degrees}));
 
 }  // namespace
 }  // namespace tint