I'd like to spawn particles that change size over time. It would be nice if I could have complete control over how big they are at each percentage of their lifetime, but that is not a necessary feature. (I'm rendering the particles as objects.)
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$\begingroup$ you can find a method to increase or decrease their size here: youtube.com/watch?v=67024UyCZ6A $\endgroup$– moonbootsJul 19, 2018 at 17:36
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$\begingroup$ Works perfectly! Thank you! Please feel free to write that up as an answer so I can officially accept it. $\endgroup$– LegomanJul 19, 2018 at 18:02
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1 Answer
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Here is the method to increase the particles size through time, as explained by BlenderShortTests in one of his tutorials:
- Select your emitter and go to Properties > Particles, click New.
- In Properties > Particles > Render, click Object and choose the object that will be emitted as particles and its size.
- Go to your 3D view and press alt A to launch a preview of your emission animation, then stop it somewhere in its course.
- In Properties > Particles > Textures, add New and give it a name.
- In Properties > Textures > Type, choose Blend.
- In Properties > Textures > Colors, enable Color Ramp.
- In Properties > Textures > Mapping > Coordinate > choose Strand/Particles.
- In Properties > Textures > Influences, unclick Time and enable Size.
- In Properties > Textures > Colors, play with the Ramp controller to increase or decrease the size of your emitted object through time.
The video also explains how to make a fade out effect on the particles: https://www.youtube.com/watch?v=67024UyCZ6A
answered Jul 19, 2018 at 18:23