☄️ Stop Keyframing. Start Simulating.

Let’s be honest: animating projectiles, balancing orbital gravity, or keyframing objects along a path usually means endless trial and error. You press play, watch the arrow miss the target or the planet drift off course, adjust the keyframe slightly, and try again.

INERTIA solves this. It is a premium suite of 100% native Geometry Nodes physics engines that do the math for you.

Whether you are launching a volley of arrows, building a stable solar system, or creating a rollercoaster, INERTIA calculates the perfect trajectory, rotation, and gravity instantly.

📦 The 3 Physics Engines Included:

🎯 1. Projectile Inertia (With Auto-Aim)
Stop guessing your launch angles. Simply select your target object, and the built-in Aim Bot mathematically calculates the exact velocity and arc required to hit the bullseye every single time.

• The Aim Bot Solver: Define the flight time, and let the iterative solver calculate the perfect launch trajectory.

• Turret Scattering: Turn a single arrow into an army. Scatter hundreds of projectiles that all calculate their own unique arcs and target spread.

• Aerodynamics & Collisions: Add realistic air friction, glide (lift), and choose whether projectiles Bounce (like a grenade) or Stick (like a dart) when they hit environment meshes.

🪐 2. Orbital Inertia (N-Body Gravity)
Create complex celestial mechanics with zero keyframes. Give your objects mass and let universal gravity take over using a powerful Controller + Object workflow.

• True N-Body Physics: Planets pull on moons, stars pull on planets. Built-in Sub-Stepping ensures your orbits are razor-thin and mathematically stable (no more spiraling out of control!).

• Predictive Paths: See the exact trajectory of your planets drawn as a glowing line before you even press play on the timeline.

• EasyOrbit Mode: A built-in "Hollywood Hack" that isolates gravity, guaranteeing your moons never get accidentally ripped away by the sun.

🎢 3. Curve Inertia (Gravity on Rails)
Ditch Blender’s robotic "Follow Path" constraint. Draw a standard Bezier curve and let real-world gravity drive the animation.

• Dynamic Momentum: Objects realistically accelerate down steep slopes and naturally lose momentum when climbing uphill. Add manual 'Thrust' for engines!

• Auto-Banking: Your objects will dynamically lean and tilt into sharp corners like a real jet fighter or rollercoaster.

🎁 FREE BONUS: The NodeMonkey Instance Tracker!

Standard Blender parenting (Ctrl + P) completely fails on moving Geometry Nodes instances.
We've included our custom Instance Tracker tool in the box absolutely free! Simply drop the tracker near your simulated arrow or planet, and it will mathematically lock onto it. You can now easily parent your Cameras, lights, or smoke sims to your flying physics objects!

📚 Premium, In-Depth PDF Manuals Included

You aren't just buying messy node trees—you are buying fully documented software.

Because INERTIA is a massive suite, your download includes beautifully formatted, dedicated PDF manuals for every single tool. You will get step-by-step "Quick Start" workflows, proxy-setup guides, and a detailed breakdown of exactly what every single slider, mask, and checkbox does. You will never have to guess how to set up a scene.

📂 What's Inside the Download:

• The .blend Core Asset Library containing all INERTIA physics engines.

• The Instance_Tracker system.

• Multiple In-Depth PDF Setup Guides & Manuals.

• Bonus Demo Scenes: Ready-to-play .blend files to help you reverse-engineer the setups (Archery Aim-bot, Solar System, etc.).

⚙️ Compatibility:
Built for and verified on Blender 5.1+ to utilize the absolute latest in Simulation Node performance.

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Animate with physics, not keyframes

-NodeMonkey