艾瑞·雷恩（Iray Rain）

厌倦了在后期添加雨水、积水和飞溅效果？或许是时候升级一下了！Iray Rain 采用加载的场景内几何体和折射着色技术，捕捉逼真的反射效果和光照条件。只需将雨水系统添加到场景中，从一系列积水预设中进行选择，如果你从低角度拍摄，甚至可以添加一些飞溅效果。 雨水：主要的雨水系统在水平轴上使用交错的几何体，以覆盖大面积区域。每个面都有独特的 UV 坐标和透射映射的折射着色，用于模拟动态水面。与全 3D 水滴相比，这种方式在性能方面成本更低，同时覆盖范围更广。此外，反射和光照效果也可以在镜头外或远离拍摄对象的位置进行捕捉。 积水：详细的透射映射平面，可完全自定义操作，用户可选择较大规模的湿地或单个小积水。积水还会反射上方的雨水。 飞溅效果：这是用于特写镜头的可选附加组件。小而零星的飞溅效果可模拟水滴撞击场景，非常适合低角度渲染

Tired of adding rain, puddles and splashes in post? Perhaps it's time for an upgrade! Iray Rain uses loaded, in-scene geometry and refractive shading to capture realistic reflections and lighting conditions. Simply drop the rain system into the scene, pick from a choice of puddle presets and perhaps even add some splashes if you're shooting from a low angle. Rain: The main Rain system uses staggered geometry on horizontal axis to cover a large area. Each face has unique uv co-ordinates and trans-mapped, refractive shading to simulate water in motion. This is less costly in terms of performance than full 3d droplets, and covers much more ground. Reflections and lighting effects can also be captured off-camera or at large distance from your subject. Puddles: Detailed, trans-mapped planes which are fully manipulable and offer a choice between larger scale wet ground, and smaller single puddles. The puddles will also reflect the rain above. Splashes: An optional extra for close-ups. Small, littered splashes to replicate droplet impact. Ideal for low angle renders.