I have a UV Sphere emitter which emits sphere particles. As in the figure the emission is not organic. Is there any way to make it more organic like the particle is stretched out from the sphere like metaballs separate?
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You can't really emit particles directly from Meta Objects themselves, so you'll just have to fake it. Just add a large Metaball overlapping your real UV sphere covering the actual emitter.
Adjust its size so it covers it entirely, or alternatively make the real emitter non-renderable.
Make sure it is named after a similar prefix to the particle Metaball (MBall## by default), so they actually interact with each other.
This is beyond the scope of the original question, but by popular demand here are the settings for the first demo image, relevant properties circled.
Simple particle system with Newtonian Physics, pointing to a small Metaball object. Under Velocity turn off Normal and increase Object Z slightly. In the Field Weights disable gravity so they "float up", then add a texture to it.
Make the texture is Blend type, and turn off all influences except Size. Switch Mapping to Strand/Particle so it maps out "through time" rather than any spatial coordinate. Under the Color panel enable the Color Ramp and flip the default result direction so they shrink with age rather than grow.
answered Sep 9, 2020 at 17:50
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2$\begingroup$ Man, this is great. But can you elaborate a bit more about the settings? Thanks $\endgroup$– lemonCommented Sep 9, 2020 at 17:58
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$\begingroup$ Just a simple particle system emitting small Metaballs. Gravity turned off, and a Z force puling them up. Only "fancy" thing is a texture affecting their size over time so they shrink as they go up $\endgroup$ Commented Sep 9, 2020 at 18:06
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$\begingroup$ ok... we'll have to search a bit to reproduce that great effect so... will try to do ; ) $\endgroup$– lemonCommented Sep 9, 2020 at 18:08
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$\begingroup$ @lemon Check it out, let me know if anything is unclear ;) $\endgroup$ Commented Sep 9, 2020 at 18:29
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3$\begingroup$ I rarely even save my answer files, providing a ready made solution feels detrimental to learning, compared to recreating the steps yourself. It also seems beyond the scope of the original question, but it took all of five minutes to make from scratch, so I'm sure catch on quick :) $\endgroup$ Commented Sep 9, 2020 at 18:40