Animated Rain - Waterdrop Material & FX 适配UE5.0-5.1
Pack has 4 types of usage:
1. Translucent Material
2. Material Overlay Function (needs Blueprint editing on an existing material)
3. Material Overlay Volume (projection decal system that doesn't require any editing, just copy & paste)
4. Camera Post Process Effect
Update 2!
Dynamic Rain Volume with rain particles is added as a usage option. It is not as realistic as the original usage of the material but it is very easy to make an area look like it's under rain by placing the volume over the area.
技术细节
Warning: Because of a bug stated here, material overlay volume doesnt work right on 4.22 and 4.23. That bug fixed on 4.24.2.
General flow speed: Set 0 to stop all flowing.
Mask general flow speed: If general flow speed is not 0, this will set the general speed of vertical flow piles.
Bottom layer flow speed: Set 0 to stop 1/3 of drops.
Bottom mask flow speed: This will set the partial speed of vertical flow piles on bottom layer. Set it 0 to hide 1/3 of vertical flows.
Middle layer flow speed: Set 0 to stop 1/3 of drops.
Middle mask flow speed: This will set the partial speed of vertical flow piles on middle layer. Set it 0 to hide 1/3 of vertical flows.
Top layer flow speed: Set 0 to stop 1/3 of drops.
Top mask flow speed: This will set the partial speed of vertical flow piles on top layer. Set it 0 to hide 1/3 of vertical flows.
IOR: Index of refraction value
Opacity-control: Material opacity value
Specular amount: Material specular value
Static speed: This value will set the flow speed of tiny drops between static drops.
Static drop on?: Set it to 1 for horizontal surfaces that has no flow. (General flow speed must also set to 0)
Static drop speed: This is the refresh rate of changing positions of the drops which looks like rain fall on surface.
UV multiplier: Tile multiplier of the general Material.
包装有 4 种用途：
1. 半透明材料
2. 材质叠加功能（需要在现有材质上编辑蓝图）
3. 材料叠加体积（投影贴花系统，无需任何编辑，只需复制和粘贴即可）
4. 相机后期处理效果
更新 2！
添加了带有雨粒子的动态雨量作为使用选项。虽然没有该材质的原始用法那么逼真，但通过在某个区域上放置雨量，可以非常轻松地让该区域看起来像在下雨。
技术细节
警告： 由于此处所述的一个错误，材质覆盖体积在 4.22 和 4.23 版中无法正常工作。该错误已在 4.24.2 中修复。
一般流速：设为 0 可停止所有流动。
屏蔽一般流速：如果一般流速不为 0，这将设置垂直流堆的一般流速。
底层流速： 设置为 0 将停止 1/3 的水滴。
底层屏蔽流速：这将设置底层垂直流堆的部分流速。设置为 0 可隐藏 1/3 的垂直流。
中间层流速： 设置为 0 可停止 1/3 的水滴。
中间掩膜流速：这将设置中间层垂直流堆积的部分速度。设置为 0 可隐藏 1/3 的垂直流。
顶层流速：设为 0 可停止 1/3 的水滴。
顶层掩膜流速： 这将设置顶层垂直流堆的部分流速。设置为 0 时，可隐藏 1/3 的垂直流。
IOR：折射率值
不透明度控制： 材质不透明度值
镜面反射量： 材质镜面反射值
静态速度： 该值用于设置静态水滴之间微小水滴的流动速度。
静态水滴在哪里？设为 1 表示水平表面没有流动。(一般流速也必须设为 0）
静态水滴速度：这是水滴位置变化的刷新率，看起来就像雨滴落在表面上。
UV 倍增器： 一般材质的瓦片乘数。
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