koobas.hobune.stream
Using Physics.gravity to accelerate an object
Rigidbodies are affected by the Physics.gravity. I want my object to be affected the same as the rigidbodies.
Ive tried
_VerticalSpeed+=Physics.gravity*Time.deltaTime;
But that accelerates the object way too fast.
Edit: I think I've figured it out. Because it's accelerating in meters per second per second. It needs to be.
Physics.gravity * Time.deltaTime * Time.deltaTime.
That looks correct anyway.
The drag on my other rigid bodies are set to 0, but my object accelerates around 50 times faster.
using UnityEngine;
using System.Collections;
public class RigidbodySpeedMonitor : MonoBehaviour
{
Vector3 manualSpeed = Vector3.zero;
void Update()
{
manualSpeed += Physics.gravity * Time.deltaTime;
}
void OnGUI()
{
GUI.Label(new Rect(5, 5, 100, 30), rigidbody.velocity.ToString());
GUI.Label(new Rect(5, 35, 100, 30), manualSpeed.ToString());
}
}
attach this script to any object with RB and gravity enabled. note, that 'manualSpeed' and 'rigidbody.velocity' are same.
your object fall incorrect rather because you aplly a speed incorrect. for example, adding speed every Update instead of adding Speed*Time.deltaTime
This is just a guess but Time.fixedDeltaTime might work better. I don't see why it should, but there's no harm in trying right?
It shouldn't make a difference, and depending on where this code is placed it could have undesired consequences.
For reading the delta time it is recommended to use Time.deltaTime ins$$anonymous$$d because it automatically returns the right delta time if you are inside a FixedUpdate function or Update function. - From the link you posted.
Instead try
public float accelerate = 2.0f;
_VerticalSpeed = Physics.gravity Time.deltaTime accelerate;
adjust accelerate value in inspector until you get your desired speed.
I've done something similar already, but Id rather not have to set another variable.
