January 24, 2015

Stylized Waterfall

This is a particle VFX I made in UE4. A community member by the name of "Anadin" posted a game project called "Bears Can't Drift!," and I wanted to show them one way to use more complex particles while staying within a cartoony, stylized world. This effect uses tons of GPU particles to simulate flowing water and solid mist as well as 3D mesh clouds. It also uses a combination of lit particles and unlit particles with reflections to render some nice, realistic effects with as little overdraw as possible. The big clouds and solid round mist effects are less complex than the transparent GPU sprites (transparency is necessary to simulate fast GPU collision).

The GPU particles performing the water effect are spawning 5000 times a second, and lasting for 1-3 seconds. There are on average about 8000 particles shown here at any given time. And because they're all GPU particles, they render much more efficiently than standard CPU particles and collision performs effortlessly.

Altogether, the effect is fairly efficient to render, but visually complex, and within the style of that world.

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