Particle Systems Set – Specifies the set that contains the particle system used as a source for the texture.
Blend Alpha – When enabled, the alpha of the sampled sub maps is blended. Otherwise the alpha is set to 1.
Blending method – Control Controls how the contribution of individual particles will blend together and determine the end result.
Per particle color – When enabled, a particle's color will be is determined on a per-particle basis instead of one color for all particles.
Disabled – The Color attribute of the texture will be is used for all particles.
Color – Uses the per particle color attribute where a particle's color will be is determined on a per-particle basis.
Emission – Uses the per particle emission attribute.
User Color – Uses one of the per particle user color attributes.
Disabled – The Radius attribute of the texture will be used for all particles.
Radius – Uses the per particle radius attribute where a particle's radius will be is determined on a per-particle basis.
User Scalar – Uses one of the per particle user scalar attributes.
Per Age Color/Radius/Amplitude/Shift – When enabled, these options will make the animation of the corresponding attribute based on the particle age, not the timeline itself.