diff --git a/src/external/viewer.ts b/src/external/viewer.ts
index f78c79bc..ce0e2467 100644
--- a/src/external/viewer.ts
+++ b/src/external/viewer.ts
@@ -48,6 +48,18 @@ export {
     CameraUniforms,
     ICamera,
 } from "../geometry/interfaces/ICamera";
+export {
+    FISHEYE_CAMERA_TYPE,
+    FisheyeCamera,
+} from "../geometry/camera/FisheyeCamera";
+export {
+    PERSPECTIVE_CAMERA_TYPE,
+    PerspectiveCamera,
+} from "../geometry/camera/PerspectiveCamera";
+export {
+    SPHERICAL_CAMERA_TYPE,
+    SphericalCamera,
+} from "../geometry/camera/SphericalCamera";
 
 // Graph
 export { Image } from "../graph/Image";
@@ -78,4 +90,4 @@ export { MapillaryError } from "../error/MapillaryError";
 
 // Shader
 export { ShaderChunk } from "../shader/ShaderChunk";
-export { Shader } from "../shader/Shader";
+export { GLShader, Shader } from "../shader/Shader";
diff --git a/test/viewer/ProjectionService.test.ts b/test/viewer/ProjectionService.test.ts
index 957a1dd1..494edb5a 100644
--- a/test/viewer/ProjectionService.test.ts
+++ b/test/viewer/ProjectionService.test.ts
@@ -84,14 +84,14 @@ describe("ProjectionService.registerCamera", () => {
 
         const type = "custom";
         class CustomCamera implements ICamera {
-            type: string = type;
-            parameters: CameraParameters = {};
-            uniforms: CameraUniforms = {};
-            projectToSfmFunction: string = "";
-            bearingFromSfm(): number[] {
+            public type: string = type;
+            public parameters: CameraParameters = {};
+            public uniforms: CameraUniforms = {};
+            public projectToSfmFunction: string = "";
+            public bearingFromSfm(): number[] {
                 return [0, 0, 0];
             }
-            projectToSfm(): number[] {
+            public projectToSfm(): number[] {
                 return [0, 0];
             }
         }