How can I make the top of the render area in Three.js point to y=0 in the world?
I also want the camera to look straight (lookAt)
These are my current values:
camera = PerspectiveCamera
camera.position.z = 1895.8448868133867
camera.fov = 20
screen.width = 1280
screen.height = 689
camera.lookAt( new THREE.Vector3(0,this.camera.position.y,0) )
I know the result should be -264 for camera.position.y but I'm unsure how to achieve this...
Any help would be greatly appreciated! :-)
Eureka! I solved the problem.
let verticalFOV = camera.fov * Math.PI / 180;
let objectHeight = 2 * Math.tan( verticalFOV / 2 ) * distance;
camera.position.y = (objectHeight/2) * -1;
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