particleSamplerInfo

If Oscillate is used, then values above 1.0 are folding back, that is, turned around. If Clamp is used, then the values above 1.0 are clampped to 1.0.

For example, lets say you set normalization value to 10 seconds, and your particles live longer than that. Here is the output of this node:

Oscillate :
Particle Age:  7    8    9    10   11   12   13
Output U or V:.7   .8   .9   1.0   .9   .8   .7
----
Clamp:
Particle Age:  7    8    9    10   11   12   13
Output U or V:.7   .8   .9   1.0   1.0  1.0  1.0

Note: The unit is in seconds, not frames or anything else.

This attribute should be connected to the UV Coord attribute of a 2d texture placement node.

If it's absolute age, then the output of this node (both U and V Coord) will be the particle's current age, divided by the value of the Normalization Value attribute. For example, if Normalization Value is set to 5 seconds, and the particle is 1 second old, then the output of this node will be 0.2. So all particles will take the same amount of time to go through the texture, regardless of their lifespans.

If the particle age is greater than user defined lifespan, this node will map it back to a number between 0 and 1, based on the Normalization Method attribute (see below)

If it's parent uv, then the output will be (parentU, parentV) from particleShape.

If it's collision uv, then the output will be (collisionU, collisionV) from particleShape.