P: Motion blur to follow a path or shape

Hi PE - I saw your post - love the other suggestions for the blur too!
The drawn shape... it might be something simple like a four-point shape that simply guides the blur to fan out instead of staying parallel.
Possibly something like that could also be achieved by adding another slider in the bar: middle of the slider is parallel, to the right or left makes it thinner on one end and in the same ratio thicker on another. Just that would help tremendously with blurs on roadways.
For drawing a curved path ... maybe it can be restricted to a two- or three-point curve?
You click a start point, an end point and pull the handles to get the desired curvature... then use beforesaid slider to fan out the path 🙂

Hi! I made a similar suggestion: http://feedback.photoshop.com/photosh...

I like some of the request – but I’m not sure about the feasibility or practicability as this would likely be a very demanding task computationally.
Especially »Use your pen tool to draw a rough outline of your curved street and the motion blur gets calculated to follow the movement and fanning-out of the shape.« might be more complicated than you assume – and possibly less useful because it would not factor in the three dimensional structure of what I assume you want to appear as a moving object.