Simulate realistic physics with Runway Gen 4.5

Demo summary
The demo shows Runway Gen 4.5 rendering realistic fluid and gravity physics through a prompt of a falling volcanic rock and lava.
Step-by-step
- Enter a prompt describing a specific physical event, such as a falling volcanic rock during an eruption
- Click the Generate button
- Review the rendered video for realistic motion and momentum
Highlights
“the lava motion is rendered very realistically with Gen 4.5”
All demos from “Runway Gen 4.5 - Tutorial & How to Use in 5 MINUTES! [ 2026 ]”
0:281:14Generate video from text with Runway Gen 4.5The user demonstrates how to select the Gen 4.5 model in the Runway dashboard, paste a detailed prompt, and generate a 10-second video.Runway· Text to Video
3:250:14Simulate realistic physics with Runway Gen 4.5CurrentThe demo shows Runway Gen 4.5 rendering realistic fluid and gravity physics through a prompt of a falling volcanic rock and lava.Runway· Text to Video
4:100:11Upscale video to 4K in RunwayThe user demonstrates how to use the 4K button in the bottom right corner of the Runway interface to upscale a generated video.Runway· AI Video Upscaler- Watch “Runway Gen 4.5 - Tutorial & How to Use in 5 MINUTES! [ 2026 ]” →
Text to Video
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3:250:14Simulate realistic physics with Runway Gen 4.5CurrentThe demo shows Runway Gen 4.5 rendering realistic fluid and gravity physics through a prompt of a falling volcanic rock and lava.Skills Factory
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