Tips for managing perspective distortion in THREE.PerspectiveCamera

My aim is to display a collada object and position it perfectly over an image with this object.
https://i.sstatic.net/LCKZh.jpg

Imagine that I have an image rendered by the v-ray renderer in 3ds max (green one) and a collada object that I render using three.js with a perspective camera (red one).
The issue I am facing is that the rendered object has more perspective distortion than the image.
I noticed that the THREE.PerspectiveCamera has a focus property which seems like what I need. However, when I adjust it, nothing changes.
According to the THREEJS documentation:

.focus

Object distance used for stereoscopy and depth-of-field effects. This parameter does not influence the projection matrix unless a StereoCamera is being used.

But I couldn't find any information about StereoCamera in the three.js documentation.

Is there anyone who can assist me in resolving this?

javascriptthree.jsperspectivecamera

Answer №1

Adjusting the Field of View (FOV) on your PerspectiveCamera can greatly impact your scene.

camera = new THREE.PerspectiveCamera(60, window.innerWidth / window.innerHeight, 1, 3000);

The first parameter in the code snippet above, 60, represents the FOV value. A lower value will result in less distortion, but may require you to move the camera further back or scale down your objects. Experiment with different FOV values and object scaling to achieve the desired effect for your scene.

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