• 1x High-detail water droplet simulation on vertical glass surface (divided into 3 separate caches)
• 100 frames
• Real-scale liquid behavior
• High-resolution droplet mesh geometry
• Ready for cinematic / film rendering or in-game integration
• 3.9 M polys total (1.9 M vertices)

Animation video overview: https://youtu.be/CZ5tT3hN-4E

File Types

• 3ds Max 2019. Native, ready for rendering. Materials: Redshift.
• Unreal Engine 5.4.4 Native, ready for rendering.
• Blender 5.0.1
• Alembic

Preview render: 3ds Max - Redshift, Unreal Engine.

This Raindrops On Glass Surface In Rainy Day is a physically simulated 3D liquid animation designed for photorealistic rendering, cinematic close-ups, and VFX compositing. The asset contains a 100-frame baked Alembic simulation of water droplets forming, sliding, merging, and streaking down a vertical glass surface.

This simulation is ideal for dramatic rain scenes, moody interior shots, macro cinematography, environmental storytelling, and high-end product visualization.

The simulation focuses on natural gravity-driven liquid behavior. Droplets accumulate on the glass surface, gradually increasing in volume before sliding downward. Smaller droplets merge into larger ones, forming elongated streaks and irregular water trails.

The motion captures:

• Surface tension interaction
• Droplet adhesion to glass
• Gravity pull and acceleration
• Organic merging and splitting
• Natural variation in droplet size and spacing

The animation has been baked to ensure stability, accuracy, and consistent playback across rendering pipelines.

Style

• Photorealistic liquid simulation
• Cinematic macro aesthetic
• High-detail close-up ready
• Physically accurate motion
• VFX and compositing friendly

The style supports dramatic lighting setups, including backlit rain effects, soft interior lighting, night scenes, and shallow depth-of-field shots.

Form

The geometry consists of hundreds of individual droplets distributed across a vertical plane. Forms vary from:

• Small spherical micro-droplets
• Medium rounded beads
• Large elongated tear-shaped drops
• Long vertical streaks formed by merging water

Each droplet features subtle asymmetry and organic shape variation, avoiding repetitive patterns. The streaking forms stretch naturally along the direction of gravity.

Materials

The simulation is optimized for physically based rendering workflows.

Recommended material setup:

• Transparent refractive water shader
• Realistic Index of Refraction (IOR ~1.33)
• Smooth specular highlights
• Subtle roughness variation for surface tension breakup
• High reflection response for HDR lighting

The asset works in Unreal Engine, Unity, Blender, Maya, Houdini, Cinema 4D, 3ds Max and renderers such as V-Ray, Arnold, Redshift, and Octane.

Colors

The droplets are physically neutral and transparent. Final appearance depends on lighting and environment reflection.

• Typical visual characteristics include:
• Clear refractive transparency
• Bright specular highlights
• Soft gray and white reflections

Background color distortion through refraction

Subtle internal light bending

The asset adapts naturally to both warm interior lighting and cold exterior rain environments.

Use Cases

• Rain on window cinematic shots
• Emotional interior scenes
• Night city window renders
• Storm simulations
• Music video visuals
• Architectural visualization
• Product rendering with atmospheric detail
• Film and TV compositing

Technical Notes

• 100 baked frames
• No simulation recalculation required
• Compatible with major DCC and real-time engines supporting Alembic
• Clean topology for efficient rendering

Tags

Water dripping down on window glass,

Window Glass Rain Drops,

Water Droplets On Window,

Raindrops On Glass Surface In Rainy Day,

Water Droplets Attached On The Glass,

Rain drops window,

Close-up Water Droplets On Glass,

Rain Falling On Glass During Rain,

A rain covered window with lots of drops of water,

water droplets, rain on glass, dripping water, window rain effect, water simulation, alembic animation, liquid simulation, glass surface water, cinematic rain, photorealistic water, vfx asset, macro water drops, realistic rain effect, pbr water, refractive liquid, rain streaks, environmental detail, storm window, high detail water, 3d rain simulation, water on window, gravity driven liquid, realistic droplets, film rain effect, close up water simulation, condensation, Wet Surface