Not able change particle parameters using blue prints

anonymous_user_b9cf4d5f1 · February 23, 2017, 5:32am

Hi,
I could able to control material instance parameters dynamically using blueprints for a particle effect but not able to control particle parameters from cascade using blueprints.
For example I have created a fire in cascade, I wanted to control its rate, velocity, lifespan etc., through blueprints dynamically, I have changed the Distribution Type to Particle Parameter and given a Parameter name “Fire Rate”. I manged to get the parameter name in blueprint details section but if I change the value nothing changes in the view port. I feel I haven’t connected or choose proper nodes in blueprints… Please help… I want to build a fx asset so that it will be easy to change control values just using blueprint instead of opening cascade or material instance.
Please Help…

DigitalMage · February 23, 2017, 6:38am

did you follow this tutorial?

anonymous_user_b9cf4d5f1 · February 23, 2017, 8:23am

Ya, followed that tutorial but I was able to get instance parameters for emitter from cascade modules like rate, velocity etc. I can directly manipulate the properties of emitter in the level itself by adding them in details like same as in tutorial… but controlling emitter parameters via blueprint is what I am not getting… or is there any way I can add material instance parameters to emitter itself so that I no need to create a blueprint.

Aphexx100 · February 23, 2017, 1:08pm

can you please post your blueprint approach?

Aphexx100 · February 23, 2017, 1:17pm

for my wind system i use particle parameters.
first you have to collect your particles and store them. i do it like this at begin play:

then i set a particle parameter inside the emitter module via tick

the emitter itself looks like this…this should work