- proj_matrix = Matrix::frustum(left, right, bottom, top, clip_near, clip_far);
+ if(fov>Geometry::Angle<float>::zero())
+ proj_matrix = Matrix::frustum(left, right, bottom, top, clip_near, clip_far);
+ else
+ proj_matrix = Matrix::ortho(left, right, bottom, top, clip_near, clip_far);