Procedural Animation for Realistic Weapon Movements
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Solution Overview
Problem
Conventional methods for simulating realistic movement of first-person limbs in video games struggle to replicate the dynamic, non-linear, and chaotic motion of human arm movements, often resulting in a linear and mechanical appearance, which fails to capture the natural feel of real-world camera movements.
Innovation Solution
The implementation of a method that determines the orientation of virtual character's arms and objects using a 2D mass-spring-damper system, where the orientation is calculated based on the view vector and angular velocity, and a procedural animation for the virtual camera, applying Perlin noise to simulate the movement of a camera handheld by the player.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If conventional 2D animation blend space or motion mapping is used to animate virtual character limbs, then the animation can be generated, but the movement appears linear and mechanical rather than natural and chaotic
Solution Approach 1:
The patent applies dynamics by transitioning from static pre-baked animation clips to a dynamic procedural animation system. The virtual character's limbs are animated using real-time physics-based calculations that respond to player movement, weapon weight, and environmental factors, creating naturally varying chaotic motion patterns rather than repeating linear sequences.
Solution Approach 2:
The patent replaces the mechanical keyframe animation system with a physics-based procedural system. Instead of manually keyframed movements, the system uses physics engines to calculate limb trajectories based on mass, momentum, and force vectors, generating organic chaotic motion that mimics real human movement patterns.
2Shape
If motion capture data from actors is used to animate virtual character limbs, then realistic movement can be achieved, but the approach is costly and time-consuming
Solution Approach 1:
The patent creates virtual copies of motion capture data by generating procedural animations that replicate the statistical characteristics of real human movement. Instead of capturing actual actor movements, the system synthesizes equivalent motion patterns through physics calculations that produce similar chaos and variability, achieving realism without the time and cost of actual motion capture sessions.
Solution Approach 2:
The patent implements self-service by enabling the animation system to generate its own movement data through procedural generation. The physics-based system automatically calculates realistic limb movements based on game state parameters, eliminating the need for external motion capture studios and actors, thereby reducing both time and cost while maintaining movement realism.
3Adaptability or versatility
If pre-shot motion capture data is extracted and blended at runtime, then animation can be adapted to player actions, but the movement still appears linear and lacks design control
Solution Approach 1:
The patent applies dynamics by replacing static motion blending with dynamic procedural generation. The system continuously calculates animation parameters based on real-time game state, including player velocity, weapon type, and target direction, creating adaptively varying movement patterns that respond naturally to gameplay conditions rather than selecting from pre-defined linear sequences.
Solution Approach 2:
The patent utilizes parameter changes by adjusting physics-based animation parameters in real-time based on game state. Factors such as weapon mass, player movement speed, and aim accuracy dynamically modify the procedural animation parameters, creating versatile adaptive movements with full design control over the chaos and variability characteristics without being constrained by pre-captured actor performances.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach enhances the visual realism of virtual character movements by creating a more cinematic and natural look, providing a dynamic and non-linear motion that mimics real-world camera handling, thereby improving the gaming experience.
Implementation Method 1
determines the orientation of a virtual character's first-person arms and object as the virtual character is turned by a player during gameplay, wherein the virtual character is characterized by a torso having a torso mass and a torso anchor and wherein the object is held by the virtual character and characterized by an object mass and an object anchor
Implementation Method 2
determining a current torso anchor orientation from a view vector orientation of the virtual character and view vector angular velocity of the virtual character
Implementation Method 3
applying Perlin noise to simulate the movement of a camera handheld by the player
Data Source
AI summary
Systems and methods are described for imparting dynamic, non-linear and realistic movement and look and feel to a player's/virtual character's first-person limbs and hand-held object model, and procedurally animating a first-person virtual camera such that it simulates the movement of a camera handheld by the player/virtual character. To impart chaotic or random motion to the first-person limbs and hand-held object model a first module defines and implements first and second two dimensional mass-spring-damper systems, each of which is linked to the player's/virtual vector's view vector. Procedural animation or rotational shake is implemented by a second module by applying a coherent noise function to each of the six axes of the first-person virtual camera.