As I continue to explore three.js, I am becoming familiar with the operations of the camera and renderer. My current focus is on implementing the functionality to drag and resize the canvas that three.js utilizes.
My goal is to enable the canvas to be dragged and resized without scaling up the scene itself. This means that a larger canvas will show more of the scene, rather than making the scene bigger.
In case you're still in search of a solution, I came across a fiddle that might help with what you're trying to achieve: http://jsfiddle.net/psyrendust/8nbpehj3/ (Please note that I do not own this fiddle)
You'll need to make adjustments to the field of view:
// Keeping track of original values
var tanFOV = Math.tan( ( ( Math.PI / 180 ) * camera.fov / 2 ) );
var windowHeight = window.innerHeight;
// Adding Event Listeners
window.addEventListener( 'resize', onWindowResize, false );
function onWindowResize( event ) {
camera.aspect = window.innerWidth / window.innerHeight;
// Modifying the FOV
camera.fov = ( 360 / Math.PI ) * Math.atan( tanFOV * ( window.innerHeight / windowHeight ) );
camera.updateProjectionMatrix();
camera.lookAt( scene.position );
renderer.setSize( window.innerWidth, window.innerHeight );
renderer.render( scene, camera );
}
I hope this information proves helpful.
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