paint particles

[RomanB]

. . .

Thanks for the answers.

Regarding the second effect, I will try different options from those listed, although I don't see right away how to achieve the same controllability, so that the trace from each particle appears with a delay and does not disappear immediately after contact, but it is possible to regulate the duration of the dye. However, I will look at the options, perhaps this can be done too. Thanks again. This is how it is done in "thinking particles" and this is what I mean




And the first effect (No. 1) turns out to be very easy to do, literally the default setting . Somehow I couldn't do it before, probably forgot to attach the material or select the reference.