the tough stuff

Question 1

unlock ability to rotate particle placement

Answer 1

particle tab>+>hair>”advanced” checkbox>”rotation” check box and drop down menu.

for donut sprinkles and the such: “orientation axis”(dm) from “velocity/hair” to “normal”, “randomize”, “phase”, and “randomize phase” scales are used to set rotation placement. (for sprinkles on donut, mostly “randomize phase” to rotate horizontally, and a bit of “randomize”[first scale] to add a bit of vertical rotation.)

Question 2

reference an object for the particle placements

Answer 2

within: particles tab,+,hair,render(drop menu),render as(DM) object, in object(dm), “instance object”(eye dropper tool)to select object to reference

to scale the reference object: “scale” under “render as” drop menu.
and randomness is under “scale”

Question 3

weight paint scales

Answer 3

weight is the amount of heat/weight/red to blue or blue to red you want to apply. strength is how much transition towards the weight you want applied at once.

Question 4

apply particles to weighted paint.

Answer 4

particles tab, vertex groups(dm)[scroll down, near bottom], density(dm), group

Question 5

change object’s amount in instance collection

Answer 5

“use count”(cb) at the bottom of “collection”(dm).
(activate instance collection first?)