Splinter Data
Previous Frame Data
Don't change this if you only use the asset for one mesh, this is the render texture that contains the positions of the previous frame.
Speed Texture
You can replace this texture to change the speed of sections of your avatar (defaults to white). The texture applies according to the UV coordinate of the vertex. The sampled texture channel is the red channel. The speed of the particles will interpolate linearly between min/max reconstruction speed depending on the color of the texture. If the final speed value reaches 200 it will instantly snap to the target position. So you could color part of the speed texture white and a part black. Then set the max value to 200 so it instantly snaps to the target.
Random Speed
If "Enable Random Speed" is enabled, the value read from the texture will be multiplied by a random value from 0.01 to 1.0. This can be used to achieve a completely random speed without having to add a texture. This means that a value read from the texture will be multiplied with the random value, and then that value will be used to interpolate between the reconstruction speeds. Vertices that reach a speed of 200 without the random multiplier will still be snapped to the target position even if the random multiplier is enabled.