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1. Slow/Fast/Slow Material Animation

   

   Topic by acealmighty13 · Aug 2014 · Home› Unreal Engine

   I'm trying to create an animation that starts and ends slow but the center is going pretty quickly. I have a white bar that will be an emissive, and acting as a beam of energy going through a static mesh I have set up. It'll travel from one end to the other starting slow, picking up speed quickly, then slowing back down…

2. Re: Slow/Fast/Slow Material Animation

   

   Reply by acealmighty13 · Aug 2014 · Home› Unreal Engine

   Thanks for the tips. I had almost forgotten about this post. PolyBend, So, If I read your equation right, it should be Sine and Time nodes attached to a Multiply Node, that result and a Constant of 1 attached to an Addition node, with that result and a Constant node of 2 attached to a Division node. With the constants…

3. Re: Slow/Fast/Slow Material Animation

   

   Reply by PolyBend · Aug 2014 · Home› Unreal Engine

   (Sin(Time)+1)/2 gives you the ramp over time as 0 - 1 - 0 for a single second (I think, its been awhile). Change the paramaters needed to make it faster or slower. Work with that result with another time node for your main speed on the panner and it should work.

4. Re: Slow/Fast/Slow Material Animation

   

   Reply by JoakimMellergard · Aug 2014 · Home› Unreal Engine

   The nodes that you need for making PolyBends ramp would be in this order: Time ---> Sin ---> Add (1) ---> Divide(2) No Multiply node.

5. Re: Slow/Fast/Slow Material Animation

   

   Reply by JoakimMellergard · Aug 2014 · Home› Unreal Engine

   How do you animate it right now? I'd use a gradient to define speed.