SceneBump: update member variables to follow the post-underscore convention
diff --git a/src/scene.h b/src/scene.h
index 3c11e18..30996e0 100644
--- a/src/scene.h
+++ b/src/scene.h
@@ -279,12 +279,11 @@
     ~SceneBump();
 
 protected:
-    Program mProgram;
-
-    Mesh mMesh;
-    GLuint mTexture;
-    float mRotation;
-    float mRotationSpeed;
+    Program program_;
+    Mesh mesh_;
+    GLuint texture_;
+    float rotation_;
+    float rotationSpeed_;
 private:
     void setup_model_plain(const std::string &type);
     void setup_model_normals();