Setting camera position in shader for specular lighting

src/scene/cv_camera.cpp

@@ -78,10 +78,11 @@ void CvCamera::resize_intrinsics(int width, int height)
 void CvCamera::set_in_shader(const Shader &shader) const
 {
   shader.activate();
-  shader.setMat4("projection_matrix", get_projection_matrix());
-  shader.setMat4("view_matrix", get_view_matrix());
+  shader.setVec3("camera_position", this->pose.position);
   shader.setArray("dist_coeffs", this->intrinsics.dist_coeffs,
                   sizeof(this->intrinsics.dist_coeffs));
+  shader.setMat4("projection_matrix", get_projection_matrix());
+  shader.setMat4("view_matrix", get_view_matrix());
 }
 
 CameraIntrinsics CvCamera::get_intrinsics() const