Make use of Beamman’s SoftSmoke
Beamman’s SoftSmoke is another example of an effect controlled by a .pmd/.pmx model. To use the effect, you load both SoftSmoke_SP.x and SS_Controller_0.pmx into MMD. The former controls effect’s position in the world, the latter – everything else. The controller model is Japanese only though, so you better translate it to English before using.
The command name list to insert into Name Repair panel would be more or less like this (the translation is mine and rather sketchy; you can replace it with more suitable to your taste):
After loading the .pmx controller into MMD, you get multiple ways of modifying your blob of smoke. Shrink/Grow/X/Y/Z sliders allow to change its size (the effect can be rather taxing on weaker video systems, so I’d recommend you to minimize it first and then decide what size should it be). Hue/Saturation/Lightness/Transparency group governs smoke’s color-related properties. Density and Puff size changes the amount and thickness of individual “puffs”. Moving speed and Puff dynamic determine how fast puffs raise and traverse respectively, and Puff speed is about their “life cycle” from conception to dispersing (you must be in play mode to see effects of those).
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