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If an object is moved from Point A to Point B using the Follow Path constraint, I want it to leave behind a trail of color behind it.

Note : I have enabled Freestyle under which i have unchecked Use Surfaces / Solid in the Layers Tab -- NO TEXTURES are a set to the object.

This is what the render output looks like:

enter image description here

UPDATE : Since, freestyle has it's limitations, I was thinking of parenting a ribbon at the bird's tail, that would give a similar trailing effect, however, I want the ribbon's Freestyle Strokes to fade away long it's length. Also, what is the most suitable cloth modifier preset to simulate a ribbon?

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  • $\begingroup$ Like a particle system trail? $\endgroup$ – JakeD Jan 22 '17 at 21:21
  • $\begingroup$ @pycoder think, like the bird is trailing a rainbow $\endgroup$ – Tejas Jan 22 '17 at 21:22
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I can't fully get you reference to your freestyle setup, but a simple way could be using a mesh deformed by and also following the curve, using a blend texture influencing the mesh alpha.

This is a single color example, but it should be possible use a rainbow style texture...

enter image description here

you could combine such a trail with the freestyle based animation, perhaps... maybe using different render layers.

edit: since you asked here is a possible similar setup with cycles (renders a bit slower)

enter image description here

edit: since you asked, here is the .blend related to the last example (cycles)

Note: the animation is not done with follow path here, but animating the Y location after setting a curve deform modifier... the effect is similar, though.

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  • $\begingroup$ Can the same be achieved in Cycles Render? I am neither comfortable nor remotely familiar with using Blender Render $\endgroup$ – Tejas Jan 22 '17 at 22:21
  • $\begingroup$ Yes, I think so. It should be just needed a node based "colorband" texture, see this post: blenderartists.org/forum/… $\endgroup$ – m.ardito Jan 22 '17 at 22:54
  • $\begingroup$ I added a cycle example above. $\endgroup$ – m.ardito Jan 23 '17 at 9:02
  • $\begingroup$ could i have your .blend file to experiment on? $\endgroup$ – Tejas Jan 23 '17 at 9:32
  • $\begingroup$ sure, there you have it now :) $\endgroup$ – m.ardito Jan 23 '17 at 9:50
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How about dynamic paint to bring in a material in the trail? Not putting this forward as an answer... just wanted a way to post an image with the suggestion.... enter image description here

Freestyle did not recognize the trail, but I was using paint rather than a mesh deform, which it might.

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  • $\begingroup$ Nah, i need the scene to render in Freestyle exclusively as a project requirement. $\endgroup$ – Tejas Jan 23 '17 at 7:21

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