Calculating Bounce Equations for 3D Physics Simulations

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SUMMARY

This discussion focuses on calculating bounce equations for 3D physics simulations, specifically for a sphere colliding with a polygon. The key factors influencing the bounce velocity include the coefficient of restitution, initial height, and the sphere's velocity. The angle of impact significantly affects the bounce direction, adhering to the law of reflection where the angle of incidence equals the angle of reflection. Additionally, the discussion highlights the complexity of edge collisions compared to face collisions, emphasizing the need for precise calculations based on the point of impact.

PREREQUISITES
  • Understanding of 3D physics principles
  • Familiarity with the coefficient of restitution
  • Knowledge of vector mathematics
  • Experience with collision detection algorithms
NEXT STEPS
  • Research the coefficient of restitution in detail
  • Explore vector reflection techniques in 3D space
  • Study collision response algorithms for polygonal meshes
  • Learn about physics engines like Unity's PhysX for practical implementation
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This discussion is beneficial for game developers, physics simulation engineers, and anyone involved in creating realistic 3D environments that require accurate collision responses.

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Finding the "bounce equation"

Due to reasons forementioned, I am unable to access the necessary data required to avoid the release of the following information:

I am making a 3d physics simulation. What are the equations for bounce based on the velocity and elasticity of a sphere when it collides with a polygon based on the point of impact? I know the response should be different if the sphere collides with the edge of a polygon instead of the face because the input vector would become somewhat extraneous, as the point of impact would have lost its collinearity.
 
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The "bounce velocity" only depends on the coefficient of restitution the initial height and the velocity.

Wouldn't the only thing be different is the angle at which the sphere hits the polygon? In which case it will bounce off at the same angle from the normal
 
Feldoh said:
The "bounce velocity" only depends on the coefficient of restitution the initial height and the velocity.

Wouldn't the only thing be different is the angle at which the sphere hits the polygon? In which case it will bounce off at the same angle from the normal

Would it exhibit the same reflective properties of light? And what about edge contact?
 

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