to adding the rain effect in our game first I defined a rain Material. For the creation of new material after creating the Blueprint on the details panel we defined Material Domain to surface mode. Also, Blend mode needed to be Translucent and according to the Blend Mode in the main M_rain material, there were some options eliminations.
After that I defined a new Particle Color as Input Data Node, Along with it, the Radial Gradient Exponential Node is added. to achieve our Rain material emission effect I multiply the Particle color and RGE node and connect it to the emissive Color Section of the main material Node. And for Opacity, i multiply the alpha output of particle color input and RGE then connect it to the Opacity input socket.
After the Material is ready I moved on to the particle system to create my rain particles.
into the content folder I created a particle system and into it I integrated the created material in the required tab.
after adding the material as you see in the above image there are multiple other data configurations added to achieve my rain particle effect.
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