I need a short, high-impact animation that clearly shows how a gas leak propagates through space, ready to drop straight into a research presentation. The visual must feel realistic—think physically-based shading, believable particle motion, and camera angles that would fit seamlessly beside CFD stills or lab footage. What matters most is the flow direction. I want viewers to grasp, at a glance, where the plume originates, how it curls around obstacles, and the pathways it follows in open air. You are free to use your preferred tools—Houdini, Blender, ParaView, or any CFD-to-3D pipeline—so long as the final render convincingly depicts real-world behavior. Deliverables • 20–60 second 1080p (or higher) MP4 showing the complete sequence • Still frame at a key moment for the presentation slide • Source project or alembic cache for future edits (optional but appreciated) Acceptance criteria • Directional flow cues are unmistakable throughout (vector arrows, streaklines, or colored density gradients) • Lighting and shading remain consistently realistic; no stylized or abstract elements • Animation plays smoothly on a standard laptop without post-processing glitches If you have past examples of realistic fluid, smoke, or gas work, please link them—seeing comparable projects helps me lock in the commission quickly.