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Editorial Team
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Asked: 2026-06-18T20:53:47+00:00

I am currently working on a project that involves working with very large and

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I am currently working on a project that involves working with very large and very small distances using three.js

I am having an issue on the smaller side of the scene, where the ‘scene’ will start violently shaking.

At first I assumed it was a problem with the Z-Buffer, so I have written a small snippet that changes the near and far properties of the camera every time a new area is entered. This helped with the issues of ‘shimmering’ I was having before, however the scene still moves dramatically at small distances.

One of the conditions under which this happens is as follows

camera.near = .0133333
camera.far = 12
positionToObjects = 6

this should mean that the z resolution is around : .0001, which I feel like should be good enough, but the shaking that occurs is MUCH more then this.

The Objects themselves range everywhere from -200000 – 200000 in the ‘global’ position, however the scenes themselves do not change position

The other thing that I was thinking that it could be is the camera controls I have been using which are (abbrviated) as follows

if(mouseIsDown == true){
    if(this.movementSpeed < this.maxSpeed){
        this.movementSpeed += this.acceleration
    }else{
        this.movementSpeed = this.maxSpeed
    }

}else{
    if(this.movementSpeed > this.minSpeed){
        this.movementSpeed = this.movementSpeed/this.deceleration
    }else{
        this.movementSpeed = this.minSpeed  
    }

}

where this.minSpeed = 0, and this.movementSpeed is used to move the camera like so:

var actualSpeed = delta * this.movementSpeed;
this.object.translateZ( -actualSpeed * forwardOrAuto );
this.object.translateX( actualSpeed * sideSpeed );
this.object.translateY( actualSpeed * upSpeed );

However, even when the camera is not moving (up to 8 decimal places) the scene is still violently shaking

Are there any reasons that I cannot think of that would make a scene do this?

Please let me know if there is any more information that I can/should provide, and thank you in advance for your time.

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1 Answer

  1. Editorial Team

    May I suggest you use values for near and far which are not that small? (Specifically for near)

    Near is used as the divider internally, so if you’re using a small number (<1) you might lose precision and end with those violent movements, as the range of values you’re moving around is way smaller than if you used larger near and far values.

    That’s why you’ll find the default value for near is 0.1:
    https://github.com/mrdoob/three.js/blob/r55/src/cameras/PerspectiveCamera.js#L13

    … although I personally always use 1 for near.

    Also, an online example is always good when asking for help in visual matters 🙂

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