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These Projectile VFX are triggered by BluePrint (Via ProjectileMovemet).
There are several pubic variable to modify."Speed" is most important for sure and self explain..
the default value of "Gravity" is 0 .If U need parabola like Catapult.Put it 0 ~ 2 is great(Depend on Ur flavor) .and dont forget turn on the "bool "rotationFromVelocity".Rest of variable leave its default is fine.
Open BluePrint with editor. U can find niagara component in it.A Projectile VFX was assigned.
There also are several user parameter to modify(Size.ColorHue. etc..).Some of them should be mention here.
"Optimized" : this should be turn on .if U find its laggy in Ur project.Espetially!! If Ur project is top-down Game like diablo .U should turn on it. Although it may lose some detail which U cant discern.
"NoLaunchVFX" : Every Projectile VFX had embed correspondent LaunchVFX.If U dont need it and want to save the cost. Pls Turn on to remove launch VFX as U wish...
"ShowCaseMode" : the Default is sitting well in most case.
Some Projectile VFX has some variant :
Look into the VFX: "NS_ThunderBolt".To uncheck "AddJavelin" can remove the javelin.
Look into the VFX: "NS_SonicBlade".To check "AddCross" can add the cross to fight with vampire.
Look into the VFX: "NS_RockSling".To uncheck "UseFlail" can show the Rock.
Look into the VFX: "NS_PoisonSkullFish".To check "UseBat" can replace Skull with a cut bat.
Look into the VFX: "NS_MagicLanceShuriken".To check "UseShuriken" can show a Shuriken.....
Look into the VFX: "NS_HolyEnergy".To check "AddSword" can add a sword.
Look into the VFX: "NS_Comet".To check "NoShimmer" can be more like a attack VFX.
Look into the VFX: "NS_FireBall".To check "AddRock" can add a Rock....
Something U should know below:
"NS_Iceicle3D" is 3D model Version of "NS_IceCrystal".Chose one U Like.
Since "NS_MeteoriteStraight" only can be used in Straight Orbit Case.(Although it has volumetric featue and realistic)."NS_AerolithCurved" is a alternative version which can be used in Curve Orbit(such as Catapult ) and more efficient(also be more optimized version).
Consider "NS_HolyEnergy" is more made by 3D model mainly rather than Ribbin. It just can bend.So using it in Straight Ine Orbit case is good ideal.
In the event graph of blueprint.U can see the correspondent Hit VFX will be spawn when collide box be hitted!!(See the Function : "Spawn system at location")
As well as Projectile VFX. Hit Vfx also has several user parameter to modify.Some of them should be mention here.
"Optimized" : this should be turn on .if U find its laggy in Ur project.Espetially!! If Ur project is top-down Game like diablo .U should turn on it. Although it may lose some detail which U cant discern.
"LightBoost" : If U feel the VFX is not bright enough.U can Turn off it. But Use it carefully. its real light...I believe....
See if you can find out some keywords from the name of VFX below .Maybe There are some suit Your Project. Name List :
Comet/FireBall/IceCrystal/HolyEnergy/MagicLanceShuriken/Meteorite/PoisonSkullFish/RockSling/SonicBlade/ThunderBolt/VenomDart/Arrow